Energy Vault (NRGV) 10-K2023 FY Annual report

Registrant’s telephone number, including area code

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to section 12(g) of the Act: None

The aggregate market value of voting stock held by non-affiliates of the registrant on June 30, 2023, based on the closing price of $2.73 for shares of the Registrant’s Class A common stock as reported by the New York Stock Exchange, was approximately $253.1 million. Shares of common stock beneficially owned by each executive officer, director, and holder of more than 5% of our common stock have been excluded in that such persons may be deemed to be affiliates. This determination of affiliate status is not necessarily a conclusive determination for other purposes.

The registrant had 147,079,363 shares of common stock, par value $0.0001 per share, outstanding as of March 7, 2024.

DOCUMENTS INCORPORATED BY REFERENCE

This Annual Report on Form 10-K contains forward-looking statements within the meaning of the federal securities laws. All statements other than statements of historical facts contained in this Annual Report on Form 10-K, including statements regarding our future results of operations or financial condition, business strategy and plans and objectives of management for future operations, are forward-looking statements. These statements involve known and unknown risks, uncertainties, and other important factors that are in some cases beyond our control and may cause our actual results, performance, or achievements to be materially different from any future results, performance, or achievements expressed or implied by the forward-looking statements. In some cases, you can identify forward-looking statements because they contain words such as “anticipate,” “believe,” “contemplate,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “will” or “would” or the negative of these words or other similar terms or expressions. These forward-looking statements include, but are not limited to, statements concerning the following:

In addition, statements that “we believe” and similar statements reflect our beliefs and opinions on the relevant subject. These statements are based on information available to us as of the date of this Annual Report on Form 10-K. While we believe that information provides a reasonable basis for these statements, that information may be limited or incomplete. Our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all relevant information. These statements are inherently uncertain, and investors are cautioned not to unduly rely on these statements.

Any forward-looking statements only speak as of the date of this document, and we undertake no obligation to update any forward-looking information or statements, whether written or oral, to reflect any change, except as required by law. All forward-looking statements attributable to us are expressly qualified by these cautionary statements.

ITEM 1. BUSINESS

Organization

Energy Vault Holdings, Inc., (together with its subsidiaries “Energy Vault” or the “Company”) was originally incorporated under the name Novus Capital Corporation II (“Novus”) as a special purpose acquisition company in the state of Delaware in September 2020 with the purpose of effecting a merger with one or more operating businesses. On September 8, 2021, Novus announced that it had entered into a definitive agreement for a business combination (the “Merger Agreement”) with Energy Vault, Inc. (“Legacy Energy Vault”) that would result in Legacy Energy Vault becoming a wholly owned subsidiary of Novus (the “Merger”). Upon the closing of the Merger on February 11, 2022 (the “Closing”), Novus was immediately renamed to “Energy Vault Holdings, Inc.”

Throughout this Annual Report, unless otherwise noted, the “Company,” “we,” “us,” or “our” and similar terms refer to Legacy Energy Vault and its subsidiaries prior to the consummation of the Merger, and Energy Vault and its subsidiaries after the consummation of the Merger.

Mission

Our mission is to provide energy storage solutions to accelerate the global transition to renewable energy.

About Us

Our Company’s comprehensive offerings include proprietary gravity, battery, and green hydrogen energy storage solutions, supported by our technology-agnostic energy management software solutions. We incorporate a customer-centric, solutions-based approach toward helping utilities, independent power producers, and large industrial energy users reduce their energy costs while maintaining power reliability. As the world transitions to an economy powered by increasingly intermittent renewable energy such as solar and wind, the ability to provide clean and affordable electricity to a growing global population will depend heavily on the ability to store and distribute energy at appropriate times. We are striving to create a world powered by renewable resources so that everyone will have access to clean, sustainable, and affordable energy.

The core of our existence lies in a sense of urgency to meet today’s energy demands, while enabling prosperity for future generations. We are driven by our respect and commitment to the environment, society, and the economy, and are committed to continuously develop new energy storage solutions that will be powered by renewable resources.

Our Products and Services

Our solutions are designed to address the intermittency issues inherent in the predominant sources of renewable energy production by storing energy produced when renewable energy production is active. Once energy is stored in our solutions, it can be discharged to the grid in a controlled and reliable manner at any time, regardless of the then current ability of the renewable sources to generate power. Our energy storage solutions are designed to accommodate a wide variety of renewable power sources and to achieve an attractive levelized cost of energy relative to fossil fuels. Collectively, these abilities greatly broaden the use cases and time duration scenarios that can be addressed by certain sources of renewable power.

Our solutions include:

The Company generates revenue from the sale and licensing of our energy storage solutions. To date, the Company has primarily generated revenue from the sale of our battery energy storage systems (“BESSs) and from licensing our EVx technology. In addition to these sources of revenue, in the future we expect to generate revenue from the sale of our gravity energy storage systems (“GESSs”), the sale or licensing of the Company’s software solutions, the sale of long-term service agreements to maintain customer owned energy storage systems, and through tolling arrangements in connection with energy storage systems that we intend to own and operate.

Industry Overview

We believe climate change poses a monumental risk to humanity and decreasing human generated GHG emissions is currently among the world’s most pressing challenges. Carbon dioxide is the primary GHG emitted through human activities and, according to the International Energy Agency, the energy sector is estimated to account for more than 75% of global human generated GHG emissions. Burning fossil fuels contributes to climate change by releasing carbon dioxide and nitrous oxide into the atmosphere.

Renewable energy sources present environmental advantages over fossil fuels in terms of finite natural resource usage and GHG emission profile. A major obstacle to transitioning to renewable sources of energy such as wind and solar is the intermittent availability of these types of energy sources. Energy storage solutions are needed to balance the production intermittency of variable renewable energy to support a clean-energy future and a balanced electrical grid infrastructure.

The growth of the energy storage market that we address is primarily driven by the decreasing cost of energy storage technologies and renewable power generation sources, government mandates, financial incentives to reduce GHG emissions, and increasing geopolitical pressures driving energy independence goals. These dynamics are driving demand for additional renewable power generation and increased capacity and storage duration in energy storage solutions.

According to the 2H 2023 Energy Storage Market Outlook published by BloombergNEF in October 2023, the energy storage market is expected to grow at a “27% compound annual growth rate through 2030, with annual additions reaching

110 GW/372 GWh, or 2.6 times expected 2023 gigawatt installations.” Both government mandates and companies focused on reducing energy use, cost, and emissions are expected to propel the shift to renewable sources of power.

Governments in countries throughout the world have announced and implemented various policies, regulations, and legislation to support the transition from fossil fuels to low-carbon form of energy, including through the use of energy storage solutions. For example, in August 2022, the United States Congress passed the Inflation Reduction Act (“IRA”). The IRA provides incentives for the domestic manufacturing of key components of energy storage solutions as well as the construction of standalone energy storage projects. The resulting improved economics are expected to reduce the cost to implement storage within the domestic market and may amplify and accelerate the adoption of energy storage systems for short, long, and extended duration use cases, like those offered by Energy Vault. Such government policies and programs are becoming increasingly instrumental in stimulating adoption of energy storage solutions across different markets through a variety of methods, including by providing financial support, facilitating grid integration, and supporting research and development.

We believe we are well-positioned to capitalize on this opportunity through our competitive pricing and scalability, and the environmentally friendly attributes of our energy storage solutions that cover the spectrum from short durations to extended durations.

Strategy, Strengths, and Differentiation

We leverage our sustainable and differentiated technologies to provide our customers with economical solutions to meet their short, long, and extended-duration renewable energy storage needs. Our energy storage solutions are designed to accommodate a wide variety of renewable power sources and to achieve an attractive levelized cost of energy relative to fossil fuels.

We anticipate that our market will be characterized by high growth and rapidly evolving use cases and requirements. We believe that the majority of our competitors are primarily focused on the development and marketing of vertically siloed solutions based on a singular energy storage technology. Alternatively, we have strategically chosen to design an agile and agnostic software platform that can orchestrate the management of not just one energy storage technology, but rather one or more of our diverse storage mediums and the underlying power generation assets to harmonize asset operation and drive competitive operational performance. We expect that this will broaden the use cases and time duration scenarios that can be addressed by certain sources of renewable power, and thereby drive a faster transition to more widespread utilization of renewable power.

Our range of energy storage solutions assures our customers have what they need today, as well as what they will need in the future, thereby protecting their investments in our products within this high-growth market and its rapidly evolving use cases and requirements. For these reasons, we believe we are well positioned to compete successfully in the evolving market for energy storage solutions.

Project Delivery

We primarily rely on two models for project delivery, which are (i) engineering, procurement, and construction (“EPC”) delivery and (ii) engineered equipment (“EEQ”) delivery. Under the EPC model, we generally rely on third-party EPC firms to construct our storage systems, under our supervision with dedicated teams tasked with project management. Under the EEQ model, we are responsible for the delivery and installation of the equipment we provide, as well as resolving issues within our scope of supply.

Our current business model options include:

Manufacturing and Customer Support

Our manufacturing, assembly, and construction model is designed to support rapid growth, local jobs, and global execution.

The components of our B-Vault and H-Vault solutions are primarily off-the-shelf in nature and can be procured from multiple sources worldwide. Some of the power components used in these solutions are common and we strive for economies of scale when appropriate. We typically procure batteries at either the cell, module, or rack level, and then use other contractors to integrate and assemble the batteries into outdoor enclosures that are then shipped to the project site.

In 2022, we made an early-stage strategic investment in, and established a large-scale manufacturing supply agreement with KORE Power, Inc. (“KORE”). KORE is currently constructing one of the first domestic U.S. battery manufacturing facilities in Arizona, and we expect that this relationship will give us access to a large volume of batteries at attractive unit economics when the facility becomes operational. Furthermore, we and our customers are expected to receive economic benefits from the IRA when we begin incorporating batteries manufactured in the U.S. into its B-Vault solutions.

The physical structure of our EVx G-Vault solution is based on our novel designs with many of the components manufactured by suppliers uniquely for us. Some of these components are made at the supplier’s factories, while some are made closer to, or at, the project site itself. Most of the electrical system components are off-the-shelf in nature and can be procured from multiple sources worldwide.

Construction at project sites typically involves establishing regional and country level infrastructure to support local deployments through an EPC contracting model.

We provide maintenance, customer support, and repair services for the entire storage system throughout the system’s operating life, including performance of regular preventative maintenance and software upgrades when appropriate..

Supply Chain

We proactively maximize our beneficial involvement in key aspects of the global, domestic, regional, and local supply chains that support our solutions. Through our extensive supply chain procurement process, we aim to deliver our customers a thoroughly vetted and secure source of integrated components for their energy storage needs. Given our technology-agnostic approach, we can procure equipment from a variety of top-tier global suppliers without reliance on a single-source company or geography.

The market our suppliers serve is highly impacted by government legislation. As such, we continue to proactively monitor planned and/or enacted legislation in the countries and regions that we serve. When new legislation is enacted, we seek to find ways to utilize the legislation to reduce our cost to obtain energy storage components. This includes the recent IRA that was passed in the United States for manufacturing and project incentives, and the potential reactionary legislation to follow in response elsewhere in the world. There are also increasing government regulations regarding companies’ supply chains, including certain import or other restrictions on the use of various suppliers or materials/products from certain regions. For more information, see our risk factor titled “The failure or inability of our suppliers to deliver necessary components or raw materials for construction of our energy storage systems and their failure or inability to deliver them in a timely manner could cause installation delays, cancellations, penalty payments, and damage to our reputation.”

Marketing and Sales

We believe that our marketing strategy positions us as a leadership brand and a respected and sought-after long-term strategic partner that will contribute to our customers’ growth and profitability. Our marketing strategy includes the following:

To achieve this, we employ the following:

Target Customers

Our target customers include independent power producers, government organizations, utilities, grid operators, as well as industrial and commercial organizations with sizeable electricity needs. Because of the unique advantages of our solutions-based approach that offer maximum optionality through its agnostic nature and agile architecture, we believe there is significant demand for our systems to help address the accelerating growth and needs of the global energy storage market.

Competition

We expect competition in energy storage technology to intensify due to a regulatory push for lower-carbon energy sources such as wind and solar, continuing globalization, and consolidation in the energy industry. We believe that the principal competitive factors in the energy storage market include:

Our key competitors within the shorter duration BESS market include Tesla, Inc., Fluence Energy, Inc., Powin Energy Corp., FlexGen Power Systems, Inc., and Sungrow Power Supply Co Ltd. Within the longer duration energy storage market there are system manufacturers with products in various states of viability utilizing various technologies including ESS Inc., Eos Energy Enterprises Inc., Hydrostor Inc., Primus Power, Form Energy, Inc., Gravitricity Ltd., and other solid-state battery manufactures.

Some of our current and potential competitors have longer operating histories and greater financial, technical, marketing and other resources than we do. These factors may allow our competitors to respond more quickly or efficiently than we can to new or emerging technologies.

These competitors may engage in more extensive research and development efforts, undertake more far-reaching marketing campaigns, and adopt more aggressive pricing policies, which may allow them to more effectively compete for new energy storage projects.

Intellectual Property

We rely on a combination of patent, trademark, copyright, unfair competition, and trade secret laws, as well as confidentiality procedures and contractual restrictions with our employees, contractors and third parties, to establish, maintain, and protect our proprietary rights. Our success depends in part upon our ability to obtain, maintain, and enforce proprietary protection for those aspects of our technology that provide us with a competitive advantage, to operate without infringing the proprietary rights of others, and to prevent others from infringing our proprietary rights.

We have developed a patent portfolio to protect certain elements of our proprietary technology. As of December 31, 2023, we had 12 issued patents and 19 patent applications pending in the U.S. Outside the U.S., we have seven issued patents and 118 patent applications pending in other countries throughout the world. Our issued patents are expected to start expiring in 2039.

We primarily rely on copyright, trade secret laws, confidentiality procedures and contractual restrictions to protect our software. We also pursue the registration of our domain names and trademarks and service marks in the United States and

internationally. As part of our overall strategy to protect our intellectual property, we may take legal actions to prevent third parties from infringing or misappropriating our intellectual property or from otherwise gaining access to our technology.

Government Regulation and Compliance

Although we are not regulated as a utility, federal, state, and local government statutes and regulations concerning electricity heavily influence the market for our product and services. These statutes and regulations often relate to electricity pricing, net metering, incentives, taxation, competition with utilities and the interconnection of customer-owned electricity generation. In the United States, governments continuously modify these statutes and regulations. Governments, often acting through state utility or public service commissions, change and adopt different rates for commercial customers on a regular basis. These changes could affect our ability to deliver cost savings to our current and future customers for the purchase of electricity.

Several states in the U.S. have an energy storage mandate or policies designed to encourage the adoption of energy storage. Energy storage installations are supported in certain states by state public utility commission policies that require utilities to consider alternatives such as energy storage before they can build a new generation facility. In February 2018, the Federal Energy Regulation Commission (“FERC”) issued Order 841 directing regional transmission operators and independent system operators to remove barriers to the participation of energy storage in wholesale electricity markets and to establish rules to help ensure energy storage resources are compensated for the services they provide. An appeal of Order 841 filed by utility trade associations and other parties challenging the extent of FERC’s jurisdiction over energy storage resources connected to distribution systems (among other issues) was denied by the U.S. Court of Appeals for the D.C. Circuit in July 2020.

Each of our installations or customer installations must be designed, constructed, and operated in compliance with applicable federal, state and local regulations, codes, standards, guidelines, policies, and laws. To install and operate energy storage systems on its platform, we, our customers or our partners, as applicable, are required to obtain applicable permits and approvals from local authorities having jurisdiction to install energy storage systems and to interconnect the systems with the local electrical utility.

Energy storage systems typically require interconnection agreements from the applicable local electricity utilities in order to operate. In almost all cases, interconnection agreements are standard form agreements that have been pre-approved by the local public utility commission or other regulatory body with jurisdiction over interconnection agreements. As such, no additional regulatory approvals are typically required once interconnection agreements are signed.

Our operations are subject to stringent and complex federal, state and local laws, and regulations governing the occupational health and safety of our employees and wage regulations. For example, we are subject to the requirements of the federal Occupational Safety and Health Act, as amended, and comparable U.S. state laws that protect and regulate employee health and safety.

There are government regulations pertaining to the disposal of hazardous materials. We and our suppliers, as applicable, are required to comply with these regulations to sell our systems into the market.

Environmental, Social, and Governance

Energy Vault is committed to sustainability as reflected in our core mission, our focus on sustainable business management practices, and our dedication to sustainable production design and supply chain management. Our focus in 2023 was on designing more sustainable products and taking steps to implement a cohesive sustainability strategy across business lines and geographies. Our sustainability directive is to enable a renewable world through the implementation of sustainable business practices that will ultimately yield a positive impact on the environment. We respect our business relationships and strive to be a responsible partner to our suppliers and customers around the world.

frameworks, environmental policy compliance, professional education, and other key support processes for innovation and responsible development.

The Company has a Sustainability Task Force to help encourage interdepartmental collaboration and cross-functional support in an effort to embed sustainability into the nucleus of our employee’s behavior. The Sustainability Task Force is responsible for setting and communicating sustainability metrics, goals, and performance in addition to coordinating internal and external sustainability-related communications such as the annual Sustainability Report.

We demonstrate our commitment to resource preservation and environmental impacts by investing significant resources into the research and development of low carbon, innovative materials and construction practices. We have performed several material science projects to reduce the carbon content of materials, introduce the use of waste materials in our mobile masses for G-Vault, help understand end-of-life management for our energy storage solutions, and help contribute to a circular economy. To date, we have completed lifecycle assessments on our G-Vault and B-Vault based on ISO 14040 standards, and we plan to conduct life cycle assessments on other energy storage system technologies as they are developed.

Human Capital Management

At Energy Vault, we place immense value on our workforce, recognizing their critical role in our success. We are committed to fostering a positive, equitable, and secure work environment. In our pursuit of transparency, we look to engage in regular communication with our employees through various channels, including emails and all-hands meetings, to promote clear and open dialogue between the executive leadership team and the entire organization.

As of December 31, 2023, we employed 179 full-time employees and 4 part-time employees, distributed across 7 different countries. In the United States, none of our employees are represented by a labor union. In Switzerland, one of our employees is subject to a collective bargaining agreement. We have not encountered any employment-related work stoppages, and we believe we maintain strong relations with our employees.

As part of our commitment to diversity and inclusion, Energy Vault launched a comprehensive series of workshops in 2023, known as the Energy Vault Way. These workshops focus on effectively communicating Energy Vault’s purpose, vision, mission, and values statements, with a specific emphasis on nurturing a culture of recognition and continuous feedback. To enhance these initiatives, we also introduced an employee recognition platform during 2023. By December 31, 2023, we achieved an 81.3% activation rate on this platform, further reflecting our commitment to a workplace that honors and celebrates every employee's contribution.

Corporate Information

ITEM 1A. RISK FACTORS

Risk Factor Summary

Risks Related to Our Business and Our Industry

Our future growth in a nascent and rapidly-evolving industry is dependent on a number of factors, including rising demand for clean electric power solutions that can provide electric power with lower carbon emissions and replacement of conventional generation sources and the adoption speed of digital software applications to modernize the efficiency of power assets and the electric grid. Among other renewable energy market trends, we expect our business results to be driven by declines in the cost of generation of renewable power, decreases in the cost of manufacturing battery modules and cells, customer needs for services and digital applications, commercial, legal, regulatory, and political pressure for the reduced use of and reliance on fossil fuels and electric power generation that relies on fossil or other non-renewable fuels, and a rapidly growing energy storage market driven by increasing demand from utilities, independent power producers, and large energy users. However, predicting future revenues and appropriately forecasting and budgeting for our expenses is difficult, and we have limited operating history to predict trends that may emerge and take hold and materially affect our business. Our future operations and strategy is therefore subject to all of the risks inherent in light of the expenses, difficulties, complications and delays frequently encountered in connection with the growth of any new business in a nascent industry, as well as those that are specific to our business in particular.

Our projections are subject to significant risks, assumptions, estimates and uncertainties. Such projections reflect our current views with respect to future events or our future financial performance, are based on assumptions, and involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by our projections. We may not actually achieve the plans, expectations or objectives contained in our projections, and the underlying assumptions may prove incorrect. Such deviations may be due to factors outside our control or currently unknown to us. For example, our actual revenues, market share, timing for achieving business milestones, expenses and profitability may differ materially from our expectations. Therefore, undue reliance should not be placed on any of our projections.

As a recent market entrant in a developing industry, our results of operations and financial condition are dependent upon our success in establishing or entering new markets, developing and commercializing our energy storage systems, and undertaking marketing activities. We face significant risks associated with our business strategy of targeting utilities, independent power producers, and large energy users and deploying our energy storage systems at a scale that leads to broad market acceptance and profitability. The relative success of our energy systems will be dependent upon a number of factors, including their ability to provide our customers with reliable and dependable energy storage for the durations that they require, while still being cost-effective, and our ability to effectively manage any customer concerns.

In addition to the development and acceptance of our core energy storage technologies, we anticipate further developing and marketing our digital platform for the management and optimization of energy storage systems. If this platform is not adopted by users of our energy storage products or on a standalone basis, we may not recoup our investment in its development and our results of operation may be negatively impacted.

The loss of any significant customers or partners or reduction in our business activities could cause our revenues to decrease significantly and increase our losses from operations. If our products are not successful and we cannot broaden our customer base, we will continue to depend on a few customers for the majority of our revenues. Additionally, if we are unable to negotiate favorable business terms with these customers in the future, our revenues and gross profits may be insufficient to allow us to achieve and/or sustain profitability, continue operations, or remain a going concern.

Our business depends on our ability to succeed in implementing our energy storage systems and introduce innovative and competitive energy storage technologies. As our energy storage systems are highly complex, this process is costly and time-consuming.

Over time, we must effectively manage the equipment and construction costs of our energy storage systems to expand our market. While we have sought, and will continue to seek, to manage our costs, the cost of components and raw materials, for example, could increase in the future. Any such increases could slow our growth and cause our financial results and operational metrics to suffer. In addition, we may face increases in our other expenses, including increases in wages or other labor costs, as well as installation, marketing, sales or related costs. We may continue to make significant investments to drive growth in the future. To the extent that the price of electricity from the grid is low in certain markets, we will need to continue to reduce our costs to maintain our expected margins in those markets. Increases in any of these costs or our failure to achieve projected cost reductions could adversely affect our results of operations and financial condition and harm our business and prospects. If we are unable to reduce our cost structure sufficiently in the future, we may not be able to achieve profitability, which could have a material adverse effect on our business and prospects.

We rely heavily on complex machinery for our operations and our production involves a significant degree of uncertainty and risk in terms of operational performance and costs. When fully operational, our energy storage systems will consist of large-scale machinery comprised of many components assembled on-site for our customers. The components of our energy storage systems are likely to suffer unexpected malfunctions from time to time and will depend on repairs and spare parts to resume operations, which may not be available when needed. Unexpected malfunctions of our energy storage systems or their constituent components may significantly affect the intended operational efficiency and performance. In addition, our energy storage systems may need to be decommissioned from time to time, and the related costs could be significant given the size and complexity of our energy storage systems. Operational performance and costs, including those related to project stoppage, can be difficult to predict and are often influenced by factors outside of our control, such as, but not limited to, scarcity of natural resources, environmental hazards and remediation, costs associated with construction, commissioning, testing or decommissioning of machines, labor disputes and strikes, difficulty or delays in obtaining governmental permits, damages or defects in electronic systems, industrial accidents, fire, seismic activity and natural disasters. Should operational risks materialize, it may result in the personal injury to or death of workers, the loss of production equipment, damage to demonstration facilities, monetary losses, delays and unanticipated fluctuations in production, environmental damage, administrative fines, increased insurance costs and potential legal liabilities, all which could have a material adverse effect on our business, results of operations, cash flows, financial condition or prospects.

Furthermore, in recent periods, our internal operations have grown in complexity. We may in the future continue to grow our operations, both in terms of complexity and headcount. Any continued growth could increase our operational costs and failure to manage such growth could lead to additional costs in the future.

Our energy storage systems have significant upfront costs, and certain customers may need, or may prefer to acquire, third-party financing to purchase our systems.

Therefore, our growth, including the deployment of our energy storage systems, may to an extent depend on our customers’ ability to attract third-party financing partners. Their ability to obtain third-party financing depends on many factors that are outside of our control, including the ability of third parties to utilize tax credits and other government incentives, interest rate and/or currency exchange fluctuations, their perceived creditworthiness and the condition of credit markets generally. We expect that the financing of customer purchases of our energy storage systems will be subject to customary conditions such as the customer’s credit quality, and if these conditions are not satisfied, such customers may be unable to finance purchases of our energy storage systems, which would have an adverse effect on our revenue in a particular period. To the extent our customers are unable to arrange future financings for any of our current or potential projects, our business would be negatively impacted.

In attempting to attract new customers to support our growth, we intend to refine our customer agreements based on experience. Moreover, new types of product offerings may require our customers to find partners willing to finance these new projects, which may have different terms and financing conditions from prior transactions. If the terms of these transactions or the structure of these projects fails to attract financiers, we may not be able to proceed with growing our business and our potential for growth may be limited. Additionally, financing options are also limited by the customer’s willingness to commit to making fixed payments regardless of the performance of the energy storage systems or our performance of our obligations under the customer agreement

Further, our sales process for transactions that require financing require that we and our customers make certain assumptions regarding the cost of financing capital. If the cost of financing ultimately exceeds our estimates, we may be unable to proceed with some or all of the impacted projects or our revenue from such projects may be less than our estimates. Actual financing costs for potential customers may vary from our estimates due to factors outside of our control, including changes in customer creditworthiness, macroeconomic factors, the returns offered by other investment opportunities available to our financing partners, and other factors.

If our customers are unable to procure financing partners willing to finance deployments of our products or if the cost of such financing exceeds our estimates, our business would be negatively impacted.

The economic benefit of our energy storage systems to our customers includes, among other things, the benefit of reducing such customer’s payments to the local electric utility company. The rates at which electricity is available from a customer’s local electric utility company is subject to change and any changes in such rates may affect the relative benefits of our energy storage systems. Further, the local electric utility may impose “departing load,” “standby” or other charges on our customers in connection with their acquisition of our energy storage systems, the amounts of which are outside of our control and which may have a material impact on the economic benefit of our energy storage systems to our customers. Changes in the rates offered by local electric utilities and/or in the applicability or amounts of charges and other fees imposed by such utilities on customers acquiring our energy storage systems could adversely affect the demand for our energy storage systems.

Additionally, the electricity stored and released by our systems may not currently be cost-competitive in some geographic markets, and we may be unable to reduce our costs to a level at which our energy storage systems would be competitive in such markets. As such, unless the cost of electricity in these markets rises or we are able to generate demand for our energy storage systems based on benefits other than electricity cost savings, our potential for growth may be limited.

Our energy storage systems will be subject to various operating risks that may cause them to generate less value for our customers than expected. These risks include a failure or wearing out of our equipment or the equipment that our equipment connects into, an inability to find suitable replacement equipment or parts, or disruption in our distribution systems. Any extended interruption or failure of our customer’s projects, including systems we operate under long term service agreements, for any reason to generate the expected amount of output could adversely affect our business, financial condition and results of operations. In addition, our customers’ willingness to acquire additional systems or services from us may be impacted in the future if any of our systems incur operational issues that indicate expected future cash flows from the system are less than the carrying value. Any such outcome could adversely affect our operating results or ability to attract new customers.

We provide limited warranties and performance guarantees for our energy systems. To date, we have deployed two operational BESSs and our estimates about product performance and life may prove to be incorrect. Failure to meet these

warranties and performance guarantee levels may require the purchase price to be adjusted downward based on agreed-upon performance targets, or require us to make cash payments to the customer based on actual performance, as compared to expected performance.

We intend to explore alternative, co-active use case opportunities for our energy storage systems. For example, we intend to explore opportunities in energy-intensive industries such as vertical farming, data centers, direct air carbon capture where our systems may be able to benefit from existing infrastructure, including physical enclosures and electrical systems, that are built into the designs for our energy storage systems. Even after we spend time and resources exploring such opportunities, there is no assurance that they exist on terms that are commercially acceptable to us. Moreover, even if we enter into agreements to make use of such opportunities, such opportunities may not be as beneficial to us as we expected at the time of entering into the underlying agreement. Any of the foregoing may adversely affect our business, financial condition, results or operations and prospects.

Our success depends on our ability to generate revenue and operate profitably, which depends in part on our ability to identify target customers and convert such contacts into meaningful orders or expand on current customer relationships. To date, we have only deployed two operational energy systems. While our contracts do provide that our customers will be obligated to pay us certain fees in the event of termination for their convenience, such fees may not be sufficient to cover our costs and we would not realize the expected revenue associated with such cancelled contracts. Potential and contracted customers may abandon their indications of interest, or fail to honor contractual obligations and non-binding letters of interest may be cancelled or delayed by a customer for any reason or its terms may be amended in an manner adverse to us in connection with negotiating a definitive sales agreement. For that reason, there can be no assurance that any current or future indications of interest (including awards, submitted proposals or short-lists) or non-binding letters of intent will result in binding orders or sales. Furthermore, in light of our limited operating history, it is difficult for us to predict the rates at which the non-binding letters of intent or other indications of interest in our pipeline will result in binding orders or sales. It is also difficult for us to predict how quickly we will be able to fill binding orders in the event that we obtain multiple orders. In addition, revenue is expected to be recognized in stages, and customers may in some cases delay actual cash payments regardless of progressive billings. Additionally, a customer’s ability to make payments could decline during the sales process, even to the point of insolvency or bankruptcy. As a result, our operating results and cash flow may be materially lower than we expect.

We expect to rely on engineering, procurement, construction, or EPC, firms as third-party general contractors to install energy storage systems at our customers’ sites. We are likely to work with a limited number of such EPC firms, which may impact our ability to facilitate customer installations as planned. Our work with contractors or their sub-contractors may have the effect of our being required to comply with additional rules (including rules unique to our customers), working conditions, site remediation and other union requirements, which can add costs and complexity to an installation project. In the future, the timeliness, thoroughness and quality of installation-related services performed by our general contractors and their sub-contractors may not meet our expectations and standards and it may be difficult to find and train third-party general contractors that meet our standards at a competitive cost.

In addition, a key component of our growth strategy is to develop or expand our relationships with third parties. For example, we are investing resources in establishing strategic relationships with market players across a variety of industries, including, large renewable project developers, commercial agents, environmental organizations and unions, to generate new customers or to grow our business. These programs may not roll out as quickly as planned or produce the results we anticipated. A significant portion of our business depends on attracting new partners and retaining existing partners, and such relationships may not be predicated on enforceable agreements or any agreements at all.

A significant amount of our components, including batteries utilized in our BESS offerings, and products are manufactured in whole or in part by a few third-party manufactures. Many of these manufacturers are located outside of the U.S. If a catastrophic event occurs relative to these third-party manufacturers, or the political, social, or economic conditions shift

within their respective geographies or between trade partners, we could experience business interruptions, delayed delivery of products, or other adverse impacts to our ongoing business. We have also outsourced much of our transportation and logistics management. While these arrangements may lower operating costs, they also reduce our direct control over production and distribution. Such diminished control could have an adverse effect on the quality or quantity of our products as well as our flexibility to respond to changing conditions. In addition, we rely on third-party manufacturers to adhere to the terms and conditions of the agreements in place with each party. For example, although arrangements with such manufacturers may contain provisions for warranty expense reimbursement, we may remain responsible to the customer for warranty service in the event of product defects. Any unanticipated product or warranty liability, whether pursuant to arrangements with contract manufacturers or otherwise, could adversely affect our reputation, financial condition, and operating results.

We rely on a limited number of third-party suppliers for some of the components and raw materials such as steel, cement, polymers and, in certain cases, coal ash waste and retired wind turbine blades, and other materials that may be of limited supply for our GESSs and batteries, inverters, enclosures, and transformers for our BESSs. If any of our suppliers fail or are unable to provide sufficient components or raw materials at the level of quality required, or if our suppliers fail or are unable to or unwilling to provide us with the contracted quantities (as we have limited or in some case no alternatives for supply), or if our suppliers cancel the contracted quantities without sufficient lead time to order the materials from another supplier, or if our suppliers fail or are unable to deliver the components or raw materials in a timely manner, then delays, cancellations, penalty payments, or damage to our reputation could occur, which could have a material adverse effect on our business and our results of operations. If we fail to develop or maintain our relationships with any of our suppliers, or if there is otherwise a shortage, lack of availability, or cancellation of the purchase of any required raw materials or components, we may be unable to manufacture our energy storage systems or such products may be available only at a higher cost or after a long delay.

Additionally, there are increasing expectations in various jurisdictions that companies monitor the environmental and social performance of their suppliers, including sourcing of materials and compliance with a variety of labor practices, as well as consider a wider range of potential environmental and social matters, including the end-of-life considerations for products. In addition, increasing concern and focus on limiting forced labor may result in additional regulations targeting the markets we operate in and from which we source products and materials. Certain existing laws impose prohibitions on the importation of goods made with forced labor or compulsory prison labor, including the Tariff Act of 1930, the Uyghur Forced Labor Prevention Act (“UFLPA”), and other global laws against forced labor. The UFLPA places restrictions on imports from Xinjiang, a key source of materials in global supply chains. Compliance can be costly, require us to establish or augment programs to diligence or monitor our suppliers, or to design supply chains to avoid certain regions altogether. Failure to comply with such regulations can result in fines, reputational damage, import ineligibility for our products or product components, or otherwise adversely impact our business. Current or future supply chain interruptions that could be exacerbated by global political tensions, such as the situation in Ukraine, conflict in the Middle East, and public health emergencies, could also negatively impact our ability to acquire necessary raw materials and components. Such delays could prevent us from delivering our energy storage systems to customers within required time frames and cause order cancellations. Developing required raw materials and constructing required components for our products are time and capital intensive. Accordingly, the number of suppliers we have for some of our components and materials is limited and, in some cases, sole sourced. We may be unable to obtain comparable components from alternative suppliers without considerable delay, expense, or at all. If our suppliers face difficulties obtaining the credit or capital necessary to expand their operations when needed, they could be unable to supply necessary raw materials and components needed to support our planned sales and services operations, which would negatively impact our sales volumes and cash flows.

A primary potential use case for our energy storage systems involves interconnection with electric distribution and transmission facilities owned and operated by regulated utilities, and independent system operators, necessary to deliver the electricity that our energy storage systems produce. A failure or delay in the operation or development of these distribution or transmission facilities could result in a loss of revenues or breach of a contract because such a failure or delay could limit the amount of renewable electricity that our energy storage systems deliver or delay the completion of our customers’ construction projects. In addition, certain of our energy storage systems’ generation may be curtailed without compensation due to distribution and transmission limitations, reducing our revenues and impairing our ability to capitalize fully on a

particular customer project’s potential. Such a failure or curtailment at levels above our expectations could adversely affect our business.

Our business is subject to risks relating to construction, cost overruns and delays. The installation and operation of our energy storage systems at a particular site is generally subject to oversight and regulation in accordance with national, state, tribal, and local laws and ordinances relating to building codes, health and safety, environmental protection, FERC and specific Independent System Operators regulation and related matters, and typically requires obtaining and keeping in good standing various local and other governmental approvals and permits, including environmental approvals and permits, that vary by jurisdiction. In some cases, these approvals and permits require periodic renewal. It is difficult and costly to track the requirements of every individual authority having jurisdiction over energy storage system installations, to design our energy storage systems to comply with these varying standards, which may change over time, and for us and our customers to obtain all applicable approvals and permits. We cannot predict whether or when all permits and approvals required for a given project will be granted or whether the conditions associated with the permits and approvals will be achievable. The denial of a permit or approval or utility connection that is essential to a project or the imposition of impractical conditions would impair our or our customer’s ability to develop the project. In addition, we cannot predict whether the permitting and approvals process will be lengthened due to complexities and appeals. Delay in the review and permitting process for a project can impair or delay our or our customers’ abilities to develop that project or increase the cost so substantially that the project is no longer attractive to our customers. Furthermore, unforeseen delays in the review and permitting process could delay the timing of the installation of our energy storage systems and could therefore adversely affect the timing of the recognition of revenue related to hardware acceptance by our customer, which could adversely affect our operating results in a particular period. Delays relating to constructions may also bring about cost overruns, which could further adversely affect our business.

In addition, the successful installation of our energy storage systems is dependent upon the availability of and timely connection to the local electric grid. Before beginning construction on an energy storage system, we may be unable to obtain in a timely fashion or at all the required consent and authorization of local utilities to ensure successful interconnection to energy grids to enable the successful discharge of renewable energy to customers. Any delays in our customers’ ability to connect with utilities, delays in the performance of installation-related services or poor performance of installation-related services will have an adverse effect on our results and could cause operating results to vary materially from period to period. FERC issued Order No. 2023 on July 28, 2023 in an attempt to address interconnection queue backlogs and related issues with the interconnection process, including with respect to energy storage facilities. Transmission owners and operators are in the process of developing proposed rules to implement Order No. 2023, the results of which remain uncertain at this time.

Our GESSs require a considerably larger space for their deployment than comparable systems based on certain technologies such as lithium-ion technology, and this can result in a significant delay in the permitting process. In addition, the size of our GESSs may represent an impediment for deployment in denser areas or areas with restrictions on the height of buildings. And, in light of the size of our systems, we generally require hard soil or the ability to get to bedrock in order to deploy our systems. These factors may negatively impact our ability to enter into customer contracts or obtain government permits and approvals, each of which may materially affect our business.

The design of our GESSs are based on established principles that are deployed in a novel way; the GESSs are intended to provide longer energy storage durations than are provided by other types of energy storage systems. We believe that the continued growth and acceptance of energy storage generally will depend significantly on continued investment by the public and private sectors in the renewable energy industry, the regulatory environment focused on transitioning away from carbon-intensive power generation and the speed of transition towards electric mobility.

The adoption of renewable energy may not proceed as quickly as (or at the levels that) we expect and may be influenced by changes in regulatory environments, including incentives, fuel prices, public policy concerns and other factors beyond our control. Additionally, potential customers who previously invested in alternatives to our GESS solution may not deem a transition to our existing or future GESS solutions to be cost-effective. Moreover, given the limited history of our GESS

technology, potential customers may be hesitant to make a significant investment in our products. Our business, results of operations, financial condition and prospects could be adversely affected to the extent that customers, for any reason, do not adopt our systems or migrate to our systems from another energy storage technology.

In certain circumstances we expect to enter tolling arrangements in which customers purchase the energy storage and dispatch of electricity from us while we retain an ownership interest in the system. To date, we have entered into one such tolling arrangement in respect to a battery plus green hydrogen hybrid energy storage system.

We could face additional risks when we own and operate energy storage systems, as compared to when the customer owns and operates energy storage systems that we build. For example, we may need to seek equity and/or debt financing to fund the construction and operation of any energy storage systems built in connection with a project for a customer who chooses to enter into a tolling arrangement. Such financing may not be available on terms acceptable to us, if at all. Moreover, we expect that any such indebtedness would be secured by a lien on the related energy storage system, and the governing debt agreement may contain covenants imposing operating and financial restrictions on our operations. In addition, until any such debt is repaid, we may not be able to generate meaningful cash flow from the project. Moreover, the failure of our customers to make payments could trigger an event of default under such governing debt agreements, which could result in the acceleration of repayment of our outstanding indebtedness or even entitle our lender to foreclose on the collateral securing our debt. In addition, to the extent equity financing is also used, our right to receive cash flows from the project could be subordinated to the other equity investors.

Additionally, there could be a material adverse effect on our operating results and our cash flows to the extent we own and operate our energy storage systems for the benefit of customers under tolling arrangements. For example, we would not expect to receive any payments from the customer until the system is completed and expenses relating to insurance premiums, personnel, and our interest payments under debt agreements would be increased, and such increases may be material. We could also be required to provide ongoing maintenance and repair services or could face liability for any damages or injuries if the system malfunctions. Additionally, we would be subject to the risks of termination of the agreement by the customer and the inability to replace the customer would result in the system failing to generate revenue. We may also incur liabilities as a result of a performance failure or other breach of our obligations in connection with the operation of the system.

We may also be subject to additional legal and regulatory restrictions to the extent we own and operate an energy storage system, including relating to the transmission of energy. Such legal and regulatory restrictions could increase the costs of compliance and potentially subject us to threatened or actual litigation or administrative proceedings, each of which could have a material adverse effect on our business, operating results and financial condition.

Although we don’t expect a significant majority of our revenue to come from owning and operating energy storage systems based on our current outlook, there is no assurance that this type of revenue will not account for a significant portion of our business in the future.

Companies across industries are facing increasing scrutiny from a variety of stakeholders related to their ESG and sustainability practices. Expectations regarding voluntary ESG initiatives and disclosures and consumer demand for alternative forms of energy may result in increased costs (including but not limited to increased costs related to compliance, stakeholder engagement, contracting and insurance), changes in demand for certain products, enhanced compliance or disclosure obligations, or other adverse impacts to our business, financial condition, or results of operations.

While we may at times engage in voluntary initiatives (such as voluntary disclosures, certifications, or goals, among others) to improve the ESG profile of our company or to respond to stakeholder expectations, such initiatives may be costly and may not have the desired effect. Expectations around company’s management of ESG matters continues to evolve rapidly, in many instances due to factors that are out of our control. For example, we may ultimately be unable to complete certain initiatives or targets, or execute on any opportunities we have identified, either on the timelines initially announced or at all, due to technological, cost, or other constraints, which may be within or outside of our control. Moreover, actions or statements that we may take based on based on expectations, assumptions, or third-party information that we currently believe to be reasonable may subsequently be determined to be erroneous or be subject to misinterpretation. If we fail to, or are perceived to fail to, comply with or advance certain ESG initiatives (including the timeline and manner in which we complete such initiatives), or to not keep pace with peers on ESG initiatives and/or disclosures, we may be subject to various adverse impacts, including reputational damage and potential stakeholder engagement and/or litigation, even if such initiatives are currently voluntary. For example, there have been increasing allegations of greenwashing against

companies making significant ESG claims due to a variety of perceived deficiencies in performance or methodology, including as stakeholder perceptions of sustainability continue to evolve.

Certain market participants, including major institutional investors and capital providers, use third-party benchmarks and scores to assess companies’ ESG profiles in making investment or voting decisions. Unfavorable ESG ratings could lead to increased negative investor sentiment towards us, which could negatively impact our share price as well as our access to and cost of capital. To the extent ESG matters negatively impact our reputation, it may also impede our ability to compete as effectively to attract and retain employees, customers, and/or business partners, which may adversely impact our operations. While many stakeholders expect companies to pursue ESG initiatives, other may seek to reduce companies’ efforts on certain ESG-related matters. Both advocates and opponents to certain ESG matters are increasingly resorting to a range of activism forms, including media campaigns and litigation, to advance their perspectives. In addition, there are also increasing levels of regulation, disclosure-related and otherwise, with respect to ESG matters. We may ultimately be subject to regulations that are not uniform in nature or reflective of shared regulatory goals. Our efforts to respond to varying requirements may not be successful and/or may subject us to additional stakeholder engagement. This and other stakeholder expectations will also likely lead to increased costs as well as scrutiny that could heighten all of the risks identified in this risk factor. Additionally, many of our customers and suppliers may be subject to similar expectations, which may augment or create additional risks, including risks that may not be known to us.

We may acquire additional assets, products, technologies, or businesses that are complementary to its existing business. The process of identifying and consummating acquisitions and the subsequent integration of new assets and businesses into our own business would require attention from management and could result in a diversion of resources from its existing business, which in turn could have an adverse effect on its operations. Acquired assets or businesses may not generate the expected financial results. Acquisitions could also result in the use of cash, potentially dilutive issuances of equity securities, the occurrence of goodwill impairment charges, amortization expenses for other intangible assets and exposure to potential unknown liabilities of the acquired business.

If we complete future acquisitions, we may not ultimately strengthen our competitive position or achieve our goals and business strategy. We may be subject to claims or liabilities assumed from an acquired company, product, or technology; acquisitions we complete could be viewed negatively by our customers, investors, and securities analysts; and we may incur costs and expenses necessary to address an acquired company’s failure to comply with laws and governmental rules and regulations. Additionally, we may be subject to litigation or other claims in connection with the acquired company, including claims from terminated employees, former stockholders or other third parties, which may differ from or be more significant than the risks our business faces. If we are unsuccessful at integrating future acquisitions in a timely manner, or the technologies and operations associated with such acquisitions, our revenue and operating results could be adversely affected. Any integration process may require significant time and resources, which may disrupt our ongoing business and divert management’s attention, and we may not be able to manage the integration process successfully or in a timely manner. We may not successfully evaluate or utilize the acquired technology or personnel, realize anticipated synergies from the acquisition, or accurately forecast the financial impact of an acquisition transaction and integration of such acquisition, including accounting charges and any potential impairment of goodwill and intangible assets recognized in connection with such acquisitions. We may have to pay cash, incur debt, or issue equity or equity-linked securities to pay for any future acquisitions, each of which could adversely affect our financial condition or the market price of our common stock. Furthermore, the sale of equity or issuance of equity-linked debt to finance any future acquisitions could result in dilution to our stockholders. The occurrence of any of these risks could harm our business, operating results, and financial condition.

Our operations are international, and we continue to expand our business internationally as we seek to partner with customers, suppliers and other partners around the world. We currently have operations in Switzerland, Australia, United Kingdom, sales agents in other territories, and our signed purchase order and letters of intent are with counterparties around the world. Managing further international expansion will require additional resources and controls including additional support, manufacturing, and assembly facilities. Any expansion internationally could subject our business to risks associated with international operations, including:

As a result of these risks, any potential future international expansion efforts that we may undertake may not be successful.

In addition, nearly all of our letters of intent are denominated in U.S. dollars, and certain of our definitive agreements could be denominated in currencies other than the U.S. dollar. A strengthening of the U.S. dollar could increase the cost of our solutions to our international customers, which could adversely affect our business and results of operations. In addition, if an increased portion of our operating expenses is incurred outside the United States and is denominated in foreign currencies, we would be subject to increased financial impacts resulting from fluctuations in foreign currency exchange rates. If we become more exposed to currency fluctuations and are not able to successfully hedge against the risks associated with currency fluctuations, our results of operations could be adversely affected.

Our future growth depends upon factors in our industry, including with respect to our competition, the speed at which the market adopts renewable energy, our ability to penetrate such market and the state of energy storage technologies. Because renewable energy and energy storage are emerging industries, they are evolving and characterized by rapidly changing

technologies, changing government regulation and industry standards and changing consumer demands and behaviors. If the markets for these do not develop as we expect, including if they develop more slowly than we expect, demand for our energy storage systems or any digital platform that we may develop, our business, prospects, financial condition and operating results could be adversely affected.

Additionally, the energy storage market is largely driven by installed capacity of renewable electricity generation and increasing demand for renewable sources of power. Since many of these renewable sources of power are intermittent, like wind and solar, the energy produced by them must be stored for use when there is demand. Should government requirements for these intermittent power sources be relaxed or social desires for lower-carbon sources of energy decline, there could be a detrimental impact on one of our primary markets.

Our business depends on the acceptance of our products in the marketplace. Even if renewable energy and energy storage become more widely adopted than they have been to date, potential customers may choose energy storage products from our competitors that are based on their technologies. If they do so, it may be difficult to later transition such potential customers to products offered by us. Moreover, the marketplace for renewable energy storage products is rapidly evolving, and competing technologies of which we are currently unaware may emerge in the future. If the energy storage technology that supports our products does not achieve market acceptance, then our business and results of operations would be materially adversely affected.

The growth and profitability of our business is dependent upon our technology being more cost-effective than competing energy storage technologies. To the extent our offerings are not eligible for various regulatory incentives, while those of our competitors are, it may adversely impact our competitiveness or otherwise adversely impact our business.

The energy markets in which we compete continue to evolve and are highly competitive. Many of our current and potential competitors are large entities at a more advanced stage in development and commercialization than we are and in some cases have significantly more financial and other resources, including larger numbers of managerial and technical personnel, to increase their market share. For example, several companies, such as ESS Inc., Eos Energy Enterprises Inc., Hydrostor Inc. and Primus Power, have each announced plans and demonstrated prototypes of products that would compete in the energy storage market, and battery vendors with whom we compete, such as Tesla, Inc., Fluence Energy, Inc., LG Chem, Ltd., Samsung Electronics Co., Ltd and Contemporary Amperex Technology Co. Limited, have already commercialized their respective energy storage solution products. Companies such as Tesla, Inc., Fluence Energy, Inc. and Wartsila Corporation have developed or are developing their own energy management software. If our competitors continue to penetrate the renewable energy, energy storage and energy management software markets, we may experience a reduction in potential and actual market share. Furthermore, certain industry participants against whom we do not currently compete (including, in some cases, our suppliers) may shift their strategic focus and begin competing directly with us. To date, we have focused our efforts on recruiting management and other employees, business planning, raising capital, selecting applicable third-party technologies, establishing and attempting to establish partnerships with potential suppliers, customers and ecosystem partners, developing our gravity, battery, and green hydrogen energy storage systems, a digital platform, and general corporate development.

We expect competition in energy storage technology to intensify due to a regulatory push for lower-carbon energy sources, including intermittent sources such as wind and solar, continuing globalization, and consolidation in the energy industry. Developments in alternative technologies or improvements in energy storage technology made by competitors may materially adversely affect the sales, pricing and gross margins of our future energy storage systems and any digital platform. If a competing process or technology is developed that has superior operational or price performance, our business would be harmed.

Furthermore, our energy storage technology also competes with other emerging or evolving technologies, such as thermal storage, chemical storage, and carbon capture storage and sequestration. If we are unable to keep up with competitive developments, including if such technologies achieve lower prices or enjoy greater policy support than our technology, our competitive position and growth prospects may be harmed, which would adversely affect our business, prospects and financial condition.

Some of our current and potential competitors have longer operating histories and greater financial, technical, marketing and other resources than we do. These factors may allow our competitors to respond more quickly or efficiently than we can to new or emerging technologies. These competitors may engage in more extensive research and development efforts,

undertake more far-reaching marketing campaigns and adopt more aggressive pricing policies, which may allow them to more effectively compete for new energy storage projects and energy management software customers.

We intend to continue committing significant resources to establish a competitive position. There is no assurance we will successfully identify the right partners or produce and bring our energy storage systems and a digital platform to market on a timely basis, if at all, or that products and technologies developed by others will not render our energy storage systems and any digital platform that we may develop obsolete or noncompetitive, any of which would adversely affect our business, prospects and operating results.

We believe that it is vital to our operating success that we recruit and retain key personnel, including a highly skilled and diverse management team with experience in the renewable energy and energy storage sectors. If we fail to maintain a highly skilled and diverse management team, we may not be able to achieve our strategic objectives, which would negatively impact our business and operating success. In addition, because our industry is still in a nascent stage, there is and will continue to be a scarcity of skilled personnel with experience in our industry. If we lose a member of our management team or key employee, it may prove difficult for us to replace such employee with a similarly qualified individual with experience in the renewable energy and energy storage industry, which could impact our business and operating success.

As of December 31, 2023, we employed 179 full-time employees and 4 part-time employees, none of whom are represented by unions, except that one employee is covered by a collective bargaining agreement. If a union sought to organize any of our other employees, such organizing efforts or collective bargaining negotiations could potentially lead to work stoppages and/or slowdowns or strikes by certain of our employees. Additionally, the EPC firms that we rely upon to install our energy storage systems may have employees represented by unions or collective bargaining agreements. Any work stoppages and/or slowdowns by certain of our employees or certain employees at the EPC firms we contract with, could adversely affect our ability to serve our customers.

Further, settlement of actual or threatened labor disputes or an increase in the number of our employees covered by collective bargaining agreements could lead to higher labor costs and could impair productivity and flexibility.

Our executive officers have limited experience in the management of a publicly traded company. Our management team may not successfully or effectively manage the current transition to a public company that is subject to significant regulatory oversight and reporting obligations under federal securities laws. Their limited experience in dealing with the increasingly complex laws pertaining to public companies could be a significant disadvantage in that it is likely that an increasing amount of their time may be devoted to these activities which results in less time being devoted to the management and growth of our business. We may not have adequate personnel with the appropriate level of knowledge, experience, and training in the accounting policies, practices or internal controls over financial reporting required of public companies in the United States. The development and implementation of the standards and controls necessary for us to achieve the level of accounting standards required of a public company in the United States may require costs greater than expected. It is possible that the Company will be required to expand its employee base and hire additional employees to support our operations as a public company which will increase our operating costs in future periods.

Economic uncertainty and associated macroeconomic conditions, including heightened inflation, capital markets volatility, interest rate and currency rate fluctuations, and economic slowdown or recession, have resulted and may continue to result in unfavorable conditions that negatively affect demand for our products and exacerbate some of the other risks that affect our business, financial condition, and results of operations. Both domestic and international markets experienced inflationary pressures in 2022 and parts of 2023 and, while inflation has moderated recently, inflation rates in the U.S., as well as in other countries in which we operate, may increase again in the near-term. In addition, the Federal Reserve in the U.S. and other central banks in various countries have raised, and may again raise, interest rates in response to concerns about inflation, which, coupled with reduced government spending and volatility in financial markets, has had and may continue to have the effect of further increasing economic uncertainty and heightening these risks. Interest rate increases or other government actions taken to reduce inflation have resulted in recessionary pressures in many parts of the world. Furthermore, currency exchange rates have been especially volatile in the recent past, and these currency fluctuations have affected, and may continue to affect, the reported value of our assets and liabilities, as well as our cash flows.

A significant downturn in the domestic or global economy may cause our customers to pause, delay, or cancel spending on our offerings or seek to lower their costs by exploring alternatives. To the extent purchases of our offerings are perceived by customers and potential customers as discretionary, our revenue may be disproportionately affected by delays or reductions in energy storage spending. Also, competitors may respond to challenging market conditions by lowering prices and attempting to lure away our customers.

Similarly, our business depends on the overall business and global or regional political conditions, which are beyond our control.

We cannot predict the timing, strength, or duration of any economic slowdown or any subsequent recovery generally, or any industry in particular or how global business and political conditions may change. To the extent that general business, economic or political conditions, including overall changes in demand for our products, decline, our business, financial condition and results of operations, including revenues, could be materially adversely affected.

There are inherent climate-related risks wherever business is conducted. Certain of our facilities, as well as third-party infrastructure on which we rely, are located in areas that have experienced, and are projected to continue to experience, various meteorological phenomena (such as drought, heatwaves, wildfire, storms, flooding, freezes, and winter storms, among others) or other catastrophic events that may disrupt our or our suppliers’ operations (as well as grid connections), require us to incur additional operating or capital expenditures, result in facility shutdowns, decrease productivity, result in operational risks and increased risks to employee safety, or otherwise adversely impact our business, financial condition, or results of operations. Climate change may increase the frequency and/or intensity of such events. For example, in certain areas, there has been an increase in power shutoffs associated with wildfire prevention. Climate change may also result in various chronic changes to the physical environment, such as changes to water levels, air quality, and/or ambient temperature and precipitation patterns. Physical risks may also compound and contribute to further or more intense impacts. While we may take various actions to mitigate our business risks associated with climate change, this may require us to incur substantial costs and may not be successful, due to, among other things, the uncertainty associated with the longer-term projections associated with managing climate risk. For example, to the extent such events become more frequent or intense, we may not be able to procure insurance to cover all potential losses on terms we deem acceptable.

We are subject to certain risks associated with the energy transition. We anticipate there will be costs associated with transitioning to lower emissions technologies, as well as risks associated with newer technologies, including risks that particular technologies we invest in may not ultimately prove successful or financially viable, as well as other risks that may not presently be known to us. Similarly, the price and availability of various inputs for the products we offer, including electricity and various metals, vary in response to market trends, which may result in higher costs and/or operational disruptions, or other adverse impacts. These impacts may also be exacerbated by various responses from policymakers, including in manners that may for national security or other factors that do not promote the availability or affordability of such materials.

Additionally, we expect to be subject to increased regulations, reporting requirements, standards, or expectations regarding the environmental impacts of our business. For example, policymakers in various jurisdictions, including the United States, United Kingdom, Australia, European Union, and the State of California, among others, have adopted or are considering adopting GHG pricing mechanisms, GHG emission limits, and/or requirements for the disclosure of certain climate-related information, which may require us to incur significant additional costs to comply and impose increased oversight obligations on our management and board of directors (“Board”). Such regulations may also impact our supply chain and the cost of various materials used in our offerings; while we are working to find alternatives to certain materials, we cannot guarantee that we will be able to find suitable alternatives at a cost, quality, or timeframe that is acceptable to us. Government efforts to promote climate resiliency may also result in increased regulatory obligations across a range of laws, not all of which may be primarily climate-related. The expectations of various stakeholders, including customers and employees, regarding such matters likewise continues to evolve. For more information, see our risk factor titled “Increasing attention to, and scrutiny of, environmental, social, and governance matters could increase our costs, harm our reputation, impact our share price or access to or cost of capital, or otherwise adversely impact our business.” Changing market dynamics, global and domestic policy developments, and the increasing frequency and impact of meteorological phenomena have the potential to disrupt our business, the business of our suppliers and/or customers, or otherwise adversely impact our business, financial condition, or results of operations.

A portion of the current and expected demand for renewable energy results from concerns about volatility in the cost of gasoline and other petroleum-based fuel, the dependency of the United States on oil from unstable or non-aligned countries, government regulations and economic incentives promoting fuel efficiency and alternative forms of energy, as well as concerns about climate change resulting in part from the burning of fossil fuels. If the cost of gasoline and other petroleum-based fuel decreases significantly, the outlook for the long-term supply of oil to the United States improves, the government eliminates or modifies its regulations or economic incentives related to fuel efficiency and alternative forms of energy or there is a change in the perception in the cost-benefit analysis regarding the effects of burning fossil fuels on the environment, the demand for renewable energy, including energy storage products such as ours, could be reduced, and our business and revenue may be harmed.

Diesel, gasoline, natural gas, and other petroleum-based fuel prices have historically been extremely volatile, and it is difficult to ascertain whether such volatility will continue to persist. Lower gasoline and natural gas costs over extended periods of time may lower the perception in government and the private sector that cheaper, more readily available energy alternatives, such as wind and solar, should be developed and produced. If gasoline or other petroleum-based fuel prices remain at deflated levels for extended periods of time, the demand for renewable energy may decrease notwithstanding incentives to transition to renewable energy, which would have an adverse effect on our business, prospects, financial condition and results of operations.

We endeavor to obtain insurance to cover significant risks and liabilities (including, for example, natural disasters, cybersecurity, defective hardware and software and products liability). Not every risk or liability can be insured, and insurance coverage is not always reasonably available. The policy limits and terms of coverage reasonably obtainable may not be sufficient to cover actual losses or liabilities. Even if insurance coverage is available, we are not always able to obtain it at a price or on terms acceptable to us or without increasing exclusions. Disputes with insurance carriers over the availability of coverage, and the insolvency of one or more of our insurers may affect the availability or timing of recovery, as well as our ability to obtain insurance coverage at reasonable rates in the future. In some circumstances we may be entitled to certain legal protections or indemnifications from our suppliers through contractual provisions, laws or otherwise. However, these protections are not always available, are difficult to negotiate and obtain, are typically subject to certain terms or limitations, including the availability of funds, and may not be sufficient to cover our losses or liabilities. If

insurance coverage, customer indemnifications and/or other legal protections are not available or are not sufficient to cover risks or losses, it could have a material adverse effect on our financial position, results of operations and/or cash flows.

Risks Related to Our Financial Condition and Liquidity

As a public reporting company, we are subject to the rules and regulations established from time to time by the SEC and NYSE. These rules and regulations require, among other things, that we have, and periodically evaluate, procedures with respect to our internal control over financial reporting. Reporting obligations as a public company are likely to continue to place a considerable strain on our financial and management systems, processes and controls, as well as on our personnel.

In addition, as a public company we are required to document and test our internal control over financial reporting pursuant to Section 404 of the Sarbanes-Oxley Act so that our management can certify as to the effectiveness of our internal control over financial reporting. Likewise, our independent registered public accounting firm is required to provide an attestation report on the effectiveness of our internal control over financial reporting.

In connection with the preparation of our financial statements and the audit of our financial results for 2022, we had identified a material weakness in our internal controls relating to the recognition of revenue from certain licensing contracts. Although the material weakness has been remediated as of December 31, 2023, there can be no assurance that we will not identify additional material weaknesses in the future.

In future periods, if our senior management is unable to conclude that we have effective internal control over financial reporting, or to certify the effectiveness of such controls, or if our independent registered public accounting firm cannot render an unqualified opinion on management’s assessment and the effectiveness of our internal control over financial reporting, or if additional material weaknesses in our internal control over financial reporting are identified, we may be required to restate our financial statements and could be subject to regulatory scrutiny, a loss of public and investor confidence, and to litigation from investors and stockholders, which could have a material adverse effect on our business and the price of our common stock.

In addition, if we do not maintain adequate financial and management personnel, processes and controls, we may not be able to manage our business effectively or accurately report our financial performance on a timely basis, which could cause a decline in our common stock price and adversely affect our results of operations and financial condition. Furthermore, our business has grown rapidly over the last several years and may continue to grow in the future. In the event of further growth, our internal controls over financial reporting may not be adequate to support our operations. Failure to comply with the Sarbanes-Oxley Act could potentially subject us to sanctions or investigations by the SEC, the NYSE or other regulatory authorities, which would require additional financial and management resources.

The development, design, construction, and sale of our energy storage systems is a capital-intensive business. As a result, we can be expected to continue to incur substantial operating expenses without generating sufficient revenues to cover expenditures. Over time, we may need to raise additional funds, including through entry into new joint venture arrangements, through the issuance of equity, equity-linked or debt securities or through obtaining credit from financial institutions to fund, together with our principal sources of liquidity, ongoing costs such as research and development relating to our products and technologies, the construction and tooling of prototypes, the implementation of our systems for our future customers, any significant unplanned or accelerated expenses, and new strategic investments. We cannot be certain that additional capital will be available on attractive terms, if at all, when needed, which could be dilutive to stockholders, and our financial condition, results of operations, business and prospects could be materially and adversely affected. Disruptions in the global capital markets and credit markets as a result of an economic downturn, economic uncertainty, changing interest rate yield curves, changing or increased regulations, or failures of significant financial institutions could adversely affect our cash resources or access to additional capital needed for business in the future.

The Company maintains the majority of its cash and cash equivalents in accounts with major U.S. and multi-national financial institutions, and our deposits are invested in short duration U.S. Treasury bills, money market funds holding U.S. Treasury bills, and similarly rated agency indebtedness.

If adequate capital is not available to us, it may create substantial doubt among third parties, including suppliers and potential customers, about our ability to pursue our objectives, to achieve profitability or to continue as a going concern. Such doubt could materially and adversely impact our business, reputation and prospects.

While our customers are increasingly familiar with our technology, the period between initial discussions with a potential customer and the sale of even a single product typically depends on a number of factors, including the potential customer’s attitude towards innovative products, their budget and decision as to the type of financing it chooses to use, as well as the arrangement of such financing. While our customers are evaluating our products, we have incurred, and expect to continue to incur, substantial sales, marketing, and research and development expenses to customize our products to the customer’s needs. As a result, these long sales cycles may cause us to incur significant expenses without ever receiving revenue to offset those expenses

This lengthy decision making process is followed by substantial fulfillment periods. Currently, we believe the time between the entry into a sales contract with a customer and the installation of our EVx systems could range from 18 to 36 months and BESSs could range from 9 to 18 months, in each case subject to significant risks.

These lengthy sales and installation cycles increase the risk that our customers fail to satisfy their payment obligations or cancel orders before the completion of the transaction or delay the planned date for installation.

In addition, we expect that long sales cycles and the expected limited number of customers for our energy storage systems will cause fluctuations in our operating results from period to period. As a result of how we recognize revenue and other factors beyond our control, small fluctuations in the timing of the completion of our sales transactions could also cause operating results, financial condition and results of operations to vary materially from period to period.

In addition to the other risks described herein, the following factors could also cause our financial condition and results of operations to fluctuate on a quarterly basis:

Finally, our revenue, key operating metrics, and other operating results in future quarters may fall short of the expectations of investors and financial analysts, which could have an adverse effect on the price of our common stock.

In addition, our contracts with customers are subject to cancellation. Generally, a customer can cancel an order prior to installation, and, notwithstanding the fact that a customer’s termination for convenience will obligate the customer to pay us certain fees, we may be unable to recover some of our costs in connection with design, permitting, installation, and site preparations incurred prior to cancellation. Cancellation rates in our industry could increase in any given period, due to factors outside of our control including an inability to install an energy storage system at the customer’s chosen location because of permitting or other regulatory issues, unanticipated changes in the cost or availability of alternative sources of electricity available to the customer, or other reasons unique to each customer. Our operating expenses are based on anticipated sales levels, and certain of our expenses are fixed. If we are unsuccessful in closing sales after expending significant resources or if we experience delays or cancellations, our business could be materially and adversely affected.

As of December 31, 2023, we had approximately $55.2 million, $38.6 million, and $79.1 million of federal, state and foreign net operating loss (“NOL”) carryforwards, respectively, that will generally carry forward to offset future taxable income (if any), until such NOLs expire (if at all). The federal NOL carryforwards do not expire, but are subject to limitation on their use equal to 80% of the taxable income in the year of use. The state NOL carryforwards will begin to expire, if unutilized, beginning in 2039. The foreign NOL carryforwards will begin to expire, if unutilized, beginning in 2025. Additionally, as of December 31, 2023, the Company had federal and state research tax credit carryforwards of and $2.0 million and $0.6 million, respectively. The federal research tax credit carryforwards will begin to expire, if unutilized, in 2042. The state tax research credits do not expire.

New income, sales, use, or other tax laws, statutes, rules, regulations, or ordinances could be enacted at any time, which could affect the tax treatment of any of our future U.S. and non-U.S. earnings. Further, existing tax laws, statutes, rules, regulations, or ordinances could be interpreted, changed, modified, or applied adversely to us. Generally, future changes in applicable U.S. and non-U.S. tax laws and regulations, or their interpretation and application, potentially with retroactive effect, could have an adverse effect on our business, financial conditions, and results of operations. We are unable to predict whether such changes will occur and, if so, the ultimate impact on our business.

Unexpected risks may arise that cause us to write down or write off assets, restructure our operations, or incur impairment or other charges that could result in losses. Even though these charges may be noncash items and not have an immediate impact on our liquidity, the fact that we report charges of this nature could contribute to negative market perceptions about us or our securities. In addition, charges of this nature may cause us to violate net worth or other covenants to which we may be subject. Accordingly, our stockholders could suffer a reduction in the value of their shares.

The preparation of our consolidated financial statements requires management to make critical accounting estimates and assumptions that affect the reported amounts of assets, liabilities, income, revenues or expenses during the reporting periods. Incorrect estimates and assumptions by management could adversely affect our reported amounts of assets, liabilities, income, revenues and expenses during the reporting periods. If we make incorrect assumptions or estimates, our reported financial results may be over- or understated, which could materially and adversely affect our business, financial condition and results of operations.

Risks Related to Our Intellectual Property and Technology

We rely on a combination of patent, trademark, copyright, trade secret and unfair competition laws, as well as confidentiality and other contractual provisions with our customers, suppliers, employees, and others to establish, maintain, and enforce our intellectual property and proprietary rights. However, our rights under these laws and agreements afford us only limited protection and the actions we take to establish, maintain, and enforce our intellectual property rights may not be adequate. For example, our owned or licensed intellectual property rights could be challenged, invalidated, or circumvented, and we may be unable to detect when our intellectual property rights are infringed or misappropriated. Additionally, we may be unable to effectively assert our intellectual property rights or our intellectual property rights may not be sufficient to provide us with a competitive advantage, any of which could have a material adverse effect on our business, financial condition or operating results.

The laws of some countries do not protect intellectual property rights as fully as do the laws of the United States. Therefore, our intellectual property rights may not be as strong or as easily enforced outside of the United States and efforts to protect against the unauthorized use of our intellectual property rights, technology and other proprietary rights may be more expensive and difficult outside of the United States. Further, we have not established our intellectual property rights in all countries in the world, and competitors may copy our designs and technology and operate in countries in which we have not prosecuted out intellectual property. Failure to adequately protect our intellectual property rights could result in our competitors using our intellectual property to offer products, and competitors’ ability to design around our intellectual property would enable competitors to offer similar or better batteries, in each case potentially resulting in the loss of some of our competitive advantage and a decrease in our revenue, which would adversely affect our business, prospects, financial condition and operating results.

We cannot be certain that our pending patent applications will result in issued patents or that any of our issued patents will afford protection against a competitor. The status of patents involves complex legal and factual questions, and the breadth of claims allowed is uncertain. As a result, we cannot be certain that the patent applications that we file will result in patents being issued or that our patents and any patents that may be issued to us in the future will afford sufficient protection against competitors with similar technology. In addition, patent applications filed in foreign countries are subject to laws, rules, and procedures that differ from those of the United States, and thus we cannot be certain that foreign patent applications related to issued U.S. patents will be issued in other regions. Furthermore, even if these patent applications are accepted and the associated patents are issued, some foreign countries provide significantly less effective patent enforcement than in the United States.

We intend to continue to regularly assess opportunities for seeking patent and other intellectual property protections for certain aspects of our technology, designs and methodologies that we believe provide a meaningful competitive advantage. However, our ability to do so may be limited until such time as we are able to generate sufficient cash flow from operations or otherwise raise sufficient capital to continue to invest in our intellectual property. For example, maintaining patents in the United States and other countries requires the payment of maintenance fees, which may result in loss of our patent rights if we are unable to pay. If we are unable to so invest in our intellectual property, our ability to protect it or prevent others from infringing on our proprietary rights may be impaired.

In addition, patents issued to us may be infringed upon or designed around by others and others may obtain patents that we need to license or design around, either of which could increase our costs and may adversely affect our business, our prospects, and our operating results.

Companies, organizations, or individuals, including our competitors, hold numerous patents or other intellectual property rights related to technology used in our industry, some of which may prevent, limit, or interfere with our ability to make, use, develop, or sell our products or services, which could make it more difficult for us to operate our business. Those holding intellectual property rights allegedly relating to our products or services could, in the future, make claims or bring suits alleging infringement, misappropriation, or other violations of such rights, or otherwise assert their rights by seeking royalties or injunctions, which may become more likely if we gain greater recognition in the market. If a claim is

successfully brought in the future and we or our products or services are determined to have infringed, misappropriated, or otherwise violated a third party’s intellectual property rights, we may be required to do one or more of the following:

Any of the foregoing could adversely affect our business, prospects, operating results, and financial condition. In addition, any litigation or claims, whether or not valid, could harm our reputation, result in substantial costs and divert resources and management attention.

We also license technology from third parties and incorporate components supplied by third parties into our products. We may in the future face claims that our use of such technology or components infringes or otherwise violates the rights of others, which would subject us to the risks described above. We may in some cases seek indemnification from our licensors or suppliers under our contracts with them, but our rights to indemnification or our suppliers’ resources may be unavailable or insufficient to cover our costs and losses.

Many of our employees, consultants, and advisors are currently or were previously employed or engaged at other companies in our field, including our competitors or potential competitors. Although we try to ensure that our employees, consultants, and advisors do not use the proprietary information or know-how of others in their work for us, we may be subject to claims that we or these individuals have used or disclosed intellectual property rights, including trade secrets or other proprietary information, of any such individual’s current or former employer. Litigation may be necessary to defend against these claims. If we fail in defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel. Even if we are successful in defending against such claims, litigation could result in substantial costs and be a distraction to management.

In addition, while it is our policy to require our employees and contractors who may be involved in the conception or development of intellectual property rights to execute agreements assigning such intellectual property rights to us, we may be unsuccessful in executing such an agreement with each party who, in fact, conceives or develops intellectual property rights that we regard as our own. Additionally, the assignment of intellectual property rights may not be self-executing, or the assignment agreements may be breached, and we may be forced to bring claims against third parties, or defend claims that they may bring against us, to determine the ownership of what we regard as our intellectual property rights. Any of the foregoing could harm our competitive position, business, financial condition, results of operations, and prospects.

We use open-source software in our solutions and will use open-source software in the future. Companies that incorporate open-source software into their solutions have, from time to time, faced claims challenging the use of open-source software and compliance with open-source license terms. Some licenses governing the use of open-source software contain requirements that we make available source code for modifications or derivative works we create based upon the open-source software, and that we license such modifications or derivative works under the terms of a particular open-source license or other license granting third parties certain rights of further use. By the terms of certain open-source licenses, we could be required to release the source code of our proprietary software, and to make our proprietary software available to others under open-source licenses or other unfavorable license terms. Although we monitor our use of open-source software, we cannot assure you that all open-source software is reviewed prior to use in our solutions, that our developers have not incorporated open-source software into our solutions, or that they will not do so in the future. Additionally, the terms of many open-source licenses to which we are subject have not been interpreted by U.S. or foreign courts. There is a risk that open-source software licenses could be construed in a manner that imposes unanticipated conditions or restrictions on our ability to market or provide our solutions as currently marketed or provided. Companies that incorporate open-source software into their products have, in the past, faced claims seeking enforcement of open-source license provisions and claims asserting ownership of open-source software incorporated into their product. If an author or other third party were to allege that we had not complied with the conditions of an open-source license, we could incur significant legal costs defending ourselves against such allegations. In the event such claims were successful, we could be subject to significant damages or be enjoined from the distribution of our software. As a result of our current or future use of open-

source software, we may face claims or litigation, be required to release our proprietary source code, pay damages for breach of contract, re-engineer our solutions, discontinue making our solutions available in the event re-engineering cannot be accomplished on a timely basis, or take other remedial action. Any such re-engineering or other remedial efforts could require significant additional research and development resources, and we may not be able to successfully complete any such re-engineering or other remedial efforts. Further, in addition to risks related to license requirements, use of certain open-source software can lead to greater risks than use of third-party commercial software, as open-source licensors generally do not provide warranties or controls on the origin of software. Any of these risks could be difficult to eliminate or manage, and, if not addressed, could have a negative effect on our business, financial condition, and results of operations.

In the ordinary course of our business, we collect, store, and transmit confidential information, including intellectual property, proprietary business information, and personal information of customers, our employees, and contractors (collectively, “Confidential Information”). We also rely on computer systems, hardware, software, technology infrastructure, and online sites and networks for both internal and external operations that are critical to our business and the operation of our energy storage systems (collectively, “IT Systems”). We own and manage some of these IT Systems but also rely on third parties for a range of IT Systems and related products and services. We face numerous and evolving cybersecurity risks that threaten the confidentiality, integrity, and availability of our IT Systems and Confidential Information, including computer malware and viruses (e.g., ransomware), malicious code, misconfigurations, bugs or other vulnerabilities, physical or electronic break-ins, cyberattacks, phishing attacks and other social engineering schemes, employee theft or misuse, human error, fraud, denial or degradation of service attacks and attacks by sophisticated nation-state and nation-state-supported actors, terrorism, war, infrastructure changes and capacity constraints, telecommunication and electrical failures, and similar attacks or disruptions. Any of these could lead to interruption and delays in our services and operations and the loss, misuse or theft of Confidential Information.

Such attacks against online networks have become more prevalent and there is an increased likelihood they may occur on our IT Systems or those of our third-party service providers in the future. Furthermore, because the techniques used to obtain unauthorized access to, or to sabotage, systems change frequently and often are not recognized until launched against a target, we may be unable to anticipate these techniques or implement adequate preventative measures. We may also experience security breaches that may remain undetected for an extended period. Even if identified, we may be unable to adequately investigate or remediate incidents or breaches due to attackers increasingly using tools and techniques—including artificial intelligence—that are designed to circumvent controls, to avoid detection, and to remove or obfuscate forensic evidence. Due to the political uncertainty involving Russia and Ukraine, there is an increased likelihood of an escalation of tensions that could result in cyberattacks or cybersecurity incidents that may either directly or indirectly impact our operations.

We and certain of our service providers are from time to time subject to cyberattacks and security incidents. While we do not believe that we have experienced any significant system failure, accident or security breach to date, any successful attempt by cyberattackers or other disruption to our services or IT Systems, could harm our business, result in regulatory investigations and enforcement actions, expose us to legal liability, cause us to incur material costs, including to provide required notifications to third-parties including data subjects, result in the misappropriation of funds or other intellectual property, be expensive to investigate and remedy and damage our reputation or brand and ability to attract and retain customers. Insurance may not be sufficient to cover significant expenses and losses related to cyberattacks or other interruptions to our systems. Efforts to prevent cyberattackers from entering IT Systems are expensive to implement, and there can be no assurance that our cybersecurity risk management program and processes, including our policies, controls or procedures, will be fully implemented, complied with or effective in protecting our IT Systems and Confidential Information, and we may not be able to ensure the implementation or enforcement of the same with respect to our third-party vendors.

We continue to implement processes and procedures designed to enable us to quickly recover from a disaster or catastrophe and continue business operations. We have tested this capability under controlled circumstances, however, there are several factors ranging from human error to data corruption that could materially impact the efficacy of such processes and procedures, including by lengthening the time services are partially or fully unavailable to customers and users. It may be difficult or impossible to perform some or all recovery steps and continue normal business operations due to the nature of a particular cyber incident, disaster or catastrophe, especially during peak periods, which could cause additional reputational damage, or loss of revenues, any of which could adversely affect our business, results of operations, and financial results. In addition, we have experienced rapid growth and may continue to grow in the future. In the event of such growth, our IT Systems may not be adequate, as currently designed, to protect us from data security breaches and other disruptions. In the

future our energy storage systems and any digital platform that we develop may experience outages and other performance problems due to a variety of factors, including infrastructure changes, third-party service providers, human or software errors and capacity constraints. We may also face changes in our energy storage systems, which could lead to damages, accidents and or system disruptions. We may in the future experience blackmail for our proprietary software or any software underpinning any digital platform that we may develop, which could shut down operation of our IT Systems, those of our potential customers, or cause other damage to such systems.

We have service agreements with data center providers and other third-party service providers, and interruptions to their services, their network providers or with the systems allocating capacity among their users, including us, could adversely affect our ability to serve our customers or perform our administrative work. Our third-party service providers could decide to close their facilities without adequate notice. Any financial difficulties, such as bankruptcy or reorganization, faced by our third-party service providers or any of the service providers with whom they contract may have negative effects on our business, the nature and extent of which are difficult to predict. If our third-party service providers are unable to keep up with our needs for capacity, this could have an adverse effect on our business. In the event that our agreements with any of our third-party service providers are terminated, or we add additional cloud infrastructure service providers, we may experience significant costs or downtime in connection with the transfer to, or the addition of, new cloud infrastructure service providers. Any of the above circumstances or events may harm our reputation and brand or increase our costs, and adversely affect our business, financial condition, and results of operations.

To date, we have deployed two fully operational BESSs. Our products may contain defects in design, engineering, or construction that may cause them not to perform as expected or may require repair. An EVx system is unique proprietary technology to Energy Vault, and because one has not yet been fully constructed or deployed, we currently have no frame of reference by which to evaluate the performance of our EVx systems. Additionally, our energy storage systems use a substantial amount of software to operate which may require modification and updates over the life of such systems. Software products are inherently complex and often contain defects and errors when first introduced. These defects and errors can manifest in any number of ways in our products, including through diminished performance, security vulnerabilities, malfunctions, or even permanently disabled products. Additionally, it is difficult for us to evaluate the manufacturing and construction of our energy storage systems until there are working examples that have been manufactured, constructed, and used by us and/or our customers.

There can be no assurance that we will be able to detect and fix any defects in the hardware or software of our energy storage systems, and such defects may not become apparent until a system is installed and operated by a customer. Our energy storage systems may not perform consistent with customers’ expectations or consistent with other energy storage systems which may become available. Any product defects or any other failure of our energy storage systems to perform as expected could harm our reputation and result in negative publicity, lost revenue, delivery delays, product liability claims and significant warranty and other expenses, and could have a material adverse impact on our business, financial condition, operating results and prospects. Any defects, errors, or other vulnerabilities discovered in our software after release could allow third parties to manipulate or exploit our software, lower revenue, and expose us to claims for damages, any of which could seriously harm our business. We also could face claims for product liability, tort, or breach of warranty. Defending a lawsuit, regardless of its merit, is costly and may divert management’s attention and seriously harm our reputation and our business.

In addition, further development and updating of our energy storage systems will require us to incur potentially significant costs and expenses.

We anticipate that our customers will depend on our support organization to resolve any technical issues relating to the hardware and software included in our systems. In addition, our sales process is likely to depend highly on the quality of our hardware and software-enabled services, on our business reputation, and on strong recommendations from our existing customers. Any failure to maintain high-quality and highly-responsive technical support, or a market perception that we do not maintain high-quality and highly-responsive support, could adversely affect our reputation, our ability to sell our products to existing and prospective customers, and our business, financial condition and results of operations.

We intend to offer technical support services alongside our systems. While we have a designated team of engineers to support our customers, they may be unable to respond quickly enough to accommodate short-term increases in demand for support services, particularly as we increase the size of our customer base. We also may be unable to modify the format of our support services to compete with changes in support services provided by competitors. At our current stage, it is difficult to predict demand for technical support services and if demand were to increase significantly beyond our expectations, we may be unable to provide satisfactory support services to our customers. Additionally, increased demand for these services, without corresponding revenue, could increase costs and adversely affect our business, financial condition and results of operations.

Our energy storage systems are complex and incorporate technology and components that may contain design and manufacturing-related defects and errors and may in the future contain undetected defects or errors. Additionally, we have limited experience from which to evaluate the long-term performance of our energy storage systems. There can be no assurance that we will be able to detect and fix any defects in any of our energy storage system systems prior to the sale to potential consumers.

Generally, we do not manufacture the components of our energy storage systems and we rely on suppliers and subcontractors to manufacture such components. We provide installation, construction, and commissioning services for our customers that purchase our products. Although we have implemented quality control initiatives to help prevent defects and issues, defects and issues may still occur in the future that may result in significant expenses or disruptions of our operations.

Since we do not manufacture certain components of our energy storage systems, our ability to seek recourse for liabilities and recover costs from our suppliers and subcontractors depends on our contractual rights as well as the financial condition and integrity of such suppliers and subcontractors. Furthermore, our suppliers and subcontractors may be unable or not required to correct manufacturing defects or other failures of such components of our energy storage systems in a manner satisfactory to our customers, which could adversely affect customer satisfaction, market acceptance, and our business reputation.

For example in a GESS system, mobile masses may fall or the system may otherwise fail to perform as expected. For BESSs, on rare occasions, lithium-ion batteries can rapidly release the energy they contain by venting smoke and flames in a manner that can ignite nearby materials as well as other lithium-ion batteries. Any defective performance could subject us to lawsuits, product recalls, or redesign efforts, all of which would be time consuming and expensive. Additionally, negative public perception regarding the suitability of the components in our energy applications could adversely affect our business and reputation.

Any defects or errors in product or services offerings, or the perception of such defects or errors, or other performance problems could result in any of the following, each of which could adversely affect our business, financial condition, and results of operations:

Risks Related to Government Regulation

U.S. federal, state, local and foreign governments provide incentives to end users in the form of rebates, tax credits, and other financial incentives, such as system performance payments and payments for renewable energy credits associated with renewable energy generation. The range and duration of these incentives varies widely by jurisdiction. Our business may rely on these governmental rebates, tax credits, and other financial incentives to significantly lower the effective price of our energy storage systems for our customers. However, these incentives may expire on a particular date, end when the allocated funding is exhausted, or be reduced or terminated as a matter of regulatory or legislative policy. These reductions or terminations may occur without warning. The reduction, elimination, or expiration of such incentives therefore could harm our business and cash flows.

In August 2022, the United States passed the IRA, which includes a number of government incentives that support the adoption of energy storage products and services and are anticipated to benefit the Company and its operations. Forthcoming additional guidance to implement the IRA from the U.S. Department of Treasury and other federal administrative agencies could be drafted in such manner that would not be as anticipated and may be adverse to the Company’s interests.

We are subject to EHS laws and regulations in jurisdictions in which we operate, including those governing worker safety and the disposal of hazardous materials and wastes. EHS laws also cover other topics, such as emissions to air, water (including groundwater), and soil, noise, and impacts to natural resources, including various wildlife species, or areas, any of which we may be or become subject to in connection with our operations and projects. EHS laws and regulations can be complex and often change. These laws can give rise to strict, joint and several liability for administrative oversight costs, cleanup costs, property damage, bodily injury, fines, and penalties. Capital and operating expenses needed to comply with EHS laws and regulations can be significant, and violations may result in substantial fines and penalties or third-party damages.

Our operations involve the use of hazardous, flammable, and explosive materials in our battery and green hydrogen storage solutions. Our operations also produce hazardous wastes. We cannot eliminate the risk of contamination or injury from the generation, transportation, or disposal of such materials. In the event of contamination or injury resulting from our or our third-party manufacturers’ use of, or associated with the transportation or disposal of, hazardous materials, we could be held liable for any resulting damages, and any liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and penalties. We maintain workers’ compensation insurance to cover us for costs and expenses we may incur due to injuries to our employees resulting from exposure to hazardous materials with a policy limit that we believe is customary for similarly situated companies and adequate to provide us with insurance coverage for foreseeable risks; however, this insurance may not provide adequate coverage against potential liabilities and not all workers have or may agree to our workers’ compensation policy. We do not maintain insurance for environmental liability or toxic tort claims that may be asserted against us in connection with our storage or disposal of hazardous materials.

In addition, maintaining compliance with applicable EHS laws requires significant time and management resources and could cause delays in our ability to build out, equip and operate our facilities as well as service our installed energy storage systems, which would adversely impact our business, our prospects, our financial condition, and our operating results. In addition, EHS laws and regulations such as the Comprehensive Environmental Response, Compensation and Liability Act in the United States impose liability on several grounds including for the investigation and cleanup of contaminated soil and ground water, for building contamination, for impacts to human health and for damages to natural resources. We could incur liability under EHS laws and regulations if contamination is discovered in the future at properties formerly or currently owned, leased or operated by us, or properties to which hazardous substances were sent by us, . As noted above, such liability can be strict, joint and several. We are subject to various occupational health and safety laws which may require us to incur additional costs, disrupt operations, or otherwise adversely impact our business.

Many of our customers who have agreed to purchase our energy storage systems have high standards, and any EHS noncompliance by us could harm our reputation and impact a current or potential customer’s buying decision. Additionally, in many cases we contractually commit to performing all necessary installation work on a fixed-price basis, and

unanticipated costs associated with environmental remediation, worker safety, and/or EHS compliance expenses may cause the cost of performing such work to exceed our revenue. The costs of complying with EHS laws, regulations, and customer requirements, and any claims concerning noncompliance or liability with respect to contamination in the future, could have a material adverse effect on our financial condition or our operating results.

In the United States and elsewhere, the construction and implementation of our systems is subject to local laws, regulations, rules and agreements regarding zoning, permitting and land use. From time to time, various interest groups lobby for or against amendments to such rules that would allow potential customers to implement our systems in locations desirable to them. In certain cases, potential customers may need to petition for changes or waivers to such rules in order to be allowed to implement our systems. In all cases, governmental authorities and local residents may oppose the implementation of our systems by our potential customers, which could cause delays, potential damage to our relationships with customers and increased costs to us and our customers. If laws, regulations, rules, or agreements significantly restrict or discourage our potential customers in certain jurisdictions from purchasing and implementing our systems, or such customers from constructing the projects/facilities that will utilize our systems, it would have a material adverse effect on our business, results of operations, and financial condition. In addition, future macroeconomic pressures and public policy concerns could continue to lead to new laws and regulations, or interpretations of existing laws and regulations, that could limit our future customers’ use of our systems.

We are and may become subject to various state, federal and foreign laws regarding privacy, information security and data protection. In particular, our handling of data relating to individuals is subject to a variety of laws and regulations relating to privacy, data protection, and information security, and we may become subject to additional obligations, including contractual obligations, relating to our maintenance and other processing of this data. For example, the European Union’s General Data Protection Regulation, imposes stringent requirements for processing the personal data of individuals within the European Economic Area (“EEA”) or in the context of our activities within the EEA and provides for significant penalties, among other things, for noncompliance.

In the U.S., certain states have adopted privacy and security laws and regulations, which govern the privacy, processing and protection of personal information. For example, the California Consumer Privacy Act, as amended by the California Privacy Rights Act, creates individual privacy rights for California individuals (including employees), increases the privacy and security obligations of entities handling certain personal information, and creates a new California data protection agency authorized to issue substantive regulations which could result in increased privacy and information security enforcement.

Laws, regulations, and other actual and potential obligations relating to privacy, data protection, and data security are evolving rapidly, and the regulatory landscape regarding privacy, data protection, and data security is likely to remain uncertain for the foreseeable future. We expect to be subject to new laws and regulations, or new interpretations of laws and regulations, in the future in various jurisdictions. These laws, regulations, and other obligations, and changes in their interpretation, could require us to modify our operations and practices, restrict our activities, and increase our costs in the future, and it is possible that these laws, regulations, and other obligations may be inconsistent with one another or be interpreted or asserted to be inconsistent with our business or practices. Any actual or perceived inability to adequately address privacy and security concerns or comply with applicable privacy and information security laws, rules and regulations, our internal policies and procedures, or our contracts governing our processing of personal information, could result in negative publicity, government investigations and enforcement actions, claims by third parties and damage to our reputation, any of which could have an adverse effect on our business, prospects, results of operations, financial position and reputation.

We are subject to anti-corruption, anti-bribery, and other similar laws and regulations in various jurisdictions in which we operate, including the U.S. Foreign Corrupt Practices Act (“FCPA”), and other anti-corruption laws and regulations. These laws generally prohibit us and our officers, directors, employees and business partners acting on our behalf, including

agents, from corruptly offering, promising, authorizing or providing anything of value to obtain or retain business or otherwise obtain favorable treatment and require companies to maintain accurate books and records and a system of internal controls or adequate procedures to prevent bribery.

We are also subject to economic sanctions laws, export control laws and regulations, as well as customs regulations, in the various jurisdictions in which we operate, including those administered and enforced by the U.S. Department of Treasury’s Office of Foreign Assets Control, the U.S. Department of State, the U.S. Department of Commerce, His Majesty’s Treasury of the United Kingdom, the United Nations Security Council, the European Union (and its member states) and other relevant sanctions authorities.

Energy and EHS regulation is constantly changing, and changes in policy, changes in interpretation or enforcement of existing laws or regulations applicable to our business, or reexamination of current practices, could adversely impact our profitability, limit our ability to continue existing or pursue new business activities, require us to change certain of our business practices, affect retention of key personnel, or expose us to additional costs (including increased compliance costs and/or customer remediation). Regulatory changes also may require us to invest significant resources, and devote significant management attention, to make any necessary changes and could adversely affect our business.

Our business is subject to numerous federal, state, and local laws and regulations in the jurisdictions in which we operate. In particular, our business is subject to oversight and regulation under local ordinances, building, zoning and fire codes, EHS regulations, utility interconnection requirements, and other rules and regulations. Such licenses, permits, and approvals often require us to operate in ways that incur substantial compliance costs.

We have obtained certain permits and are in the process of obtaining additional permits for the energy storage systems that we are constructing. Although we have obtained certain required permits and believe that obtaining and renewing any remaining permits and/or licenses will be routine, we can provide no assurance that all required permits and/or licenses will be obtained or renewed in a timely manner. Our failure to hold a given permit or certificate would impair our ability to perform our obligations under our customer contracts. The number of laws affecting our business continues to grow. If our licenses or permits were impaired, whether by expiration, nonrenewal, modification, or termination, our business would be adversely impaired.

We can give no assurances that we will properly and timely comply with all laws and regulations that may affect us. If we fail to comply with these laws and regulations, we may be subject to legal penalties, which would adversely affect our business, prospects, and results of operations.

In addition, governments, often acting through state utility or public service commissions, change or adopt different rates for commercial customers on a regular basis. These changes could affect our ability to deliver cost savings to future customers for the purchase of our energy storage systems.

We have been and continue to be involved in legal proceedings, administrative proceedings, claims and other litigation that arise in the ordinary course of business. In addition, since our energy storage system is a new type of product in a nascent market, we may in the future need to seek the amendment of existing regulations or, in some cases, the creation of new regulations, in order to operate our business in some jurisdictions. Such regulatory processes may require public hearings concerning our business, which could expose us to subsequent litigation.

Unfavorable outcomes or developments relating to proceedings to which we are a party or transactions involving our products, such as judgments for monetary damages, injunctions, or denial or revocation of permits, could have a material adverse effect on our business, financial condition, and results of operations. To the extent such proceedings also generate negative publicity, our reputation and business could also be adversely affected. In addition, handling compliance issues and the settlement of claims could adversely affect our financial condition and results of operations.

As we operate in various locations around the world, our operations in certain countries are subject to significant governmental scrutiny and may be adversely impacted by the results of such scrutiny. The regulatory environment with regard to our business is evolving, and officials often exercise broad discretion in deciding how to interpret and apply applicable regulations. From time to time, we receive formal and informal inquiries from various government regulatory authorities, as well as self-regulatory organizations, about our business and compliance with laws, regulations or standards.

Any determination that our operations or activities, or the activities of our employees, are not in compliance with existing laws, regulations or standards could result in the imposition of substantial fines; civil or criminal liability; interruptions of business; loss of supplier, vendor, customer or other third-party relationships; termination of necessary licenses and permits; or similar results; all of which could potentially harm our business and/or reputation. Even if an inquiry does not result in these types of determinations, regulatory authorities could cause us to incur substantial costs or require us to change our business practices in a manner materially adverse to our business and could create negative publicity, which could harm our business and/or reputation.

Risks Related to Ownership of Energy Vault’s Securities

As of December 31, 2023, our executive officers, directors and their affiliates as a group beneficially own approximately 30.6% of our outstanding common stock. As a result, these stockholders are able to exercise a significant level of control over all matters requiring stockholder approval, including the election of directors, appointment and removal of officers, any amendment of the amended and restated certificate of incorporation and approval of mergers and other business combination transactions requiring stockholder approval. This control could have the effect of delaying or preventing a change of control or changes in management and will make the approval of certain transactions difficult or impossible without the support of these stockholders.

We qualify as an “emerging growth company” as defined in Section 2(a)(19) of the Securities Act, as modified by the JOBS Act. As such, the Company is eligible for and intends to take advantage of certain exemptions from various reporting requirements applicable to other public companies that are not emerging growth companies for as long as it continues to be an emerging growth company, including (a) the exemption from the auditor attestation requirements with respect to internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act, (b) the exemptions from say-on-pay, say-on-frequency and say-on-golden parachute voting requirements and (c) reduced disclosure obligations regarding executive compensation in its periodic reports and proxy statements. The Company will remain an emerging growth company until the earliest of (i) the last day of the fiscal year in which the market value of our common stock that is held by non-affiliates exceeds $700 million as of June 30 of that fiscal year, (ii) the last day of the fiscal year in which we have total annual gross revenue of $1.235 billion or more during such fiscal year (as indexed for inflation), (iii) the date on which we have issued more than $1 billion in non-convertible debt in the prior three-year period or (iv) December 31, 2026. In addition, Section 107 of the JOBS Act also provides that an emerging growth company can take advantage of the exemption from complying with new or revised accounting standards provided in Section 7(a)(2)(B) of the Securities Act as long as the Company is an emerging growth company. An emerging growth company can therefore delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected not to opt out of such extended transition period and, therefore, the Company may not be subject to the same new or revised accounting standards as other public companies that are not emerging growth companies.

Even after the Company no longer qualifies as an emerging growth company, we may in the future qualify as a “smaller reporting company,” which would allow it to continue to take advantage of many of the same exemptions from disclosure requirements, including not being required to comply with the auditor attestation requirements, Section 404 of the Sarbanes-Oxley Act and reduced disclosure obligations regarding executive compensation in its periodic reports and proxy statements. Moreover, smaller reporting companies may choose to present only the two most recent fiscal years of audited

financial statements in their Annual Reports on Form 10-K. Although the Company determined that it did not qualify as a “smaller reporting company” as of its 2023 determination date, in reliance on SEC guidance, it has chosen to continue to use certain of the scaled disclosures in this Annual Report on Form 10-K, and will begin providing non-scaled larger company disclosures in its first Form 10-Q for the 2024 fiscal year.

Investors may find the Company’s common stock less attractive because the Company will rely on these exemptions, which may result in a less active trading market for our common stock and its price may be more volatile.

The shares of our common stock and warrants are listed on the NYSE. If the NYSE delists the common stock from trading on its exchange for failure to meet the listing standards, we and our stockholders could face significant material adverse consequences including:

We expect to continue incurring increased legal, accounting, administrative and other costs and expenses as a public company. We expect such costs and increases to be increased further after we are no longer an emerging growth company. The Sarbanes-Oxley Act, including the requirements of Section 404, as well as rules and regulations subsequently implemented by the SEC, the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 and the rules and regulations promulgated and to be promulgated thereunder, the Public Company Accounting Oversight Board and the securities exchanges, impose additional reporting and other obligations on public companies. Compliance with public company requirements will increase costs and make certain activities more time-consuming. A number of those requirements require us to carry out activities we have not done previously. In addition, expenses associated with SEC reporting requirements are being incurred. Furthermore, if any issues in complying with those requirements are identified (for example, if the auditors identify a significant deficiency or material weaknesses in the internal control over financial reporting), we could incur additional costs to rectify those issues, and the existence of those issues could adversely affect our reputation or investor perceptions.

In addition, we maintain director and officer liability insurance, which has substantial premiums. Advocacy efforts by stockholders and third parties may also prompt additional changes in governance and reporting requirements, which could further increase costs.

Research and reports that industry or securities analysts publish about the Company, its business, market or competitors may influence the public market for our securities. If securities or industry analysts cease coverage of the Company, the price and trading volume of our publicly traded securities would likely be negatively impacted. If any of the analysts who may cover the Company adversely change their recommendation regarding our securities, or provide more favorable relative recommendations about our competitors, the price of the our publicly traded securities would likely decline. If any analyst who may cover the Company were to cease coverage of the Company or fail to regularly publish reports on us, the Company could lose visibility in the financial markets, which in turn could cause the price or trading volume of our publicly traded securities to decline.

The Company may retain future earnings, if any, for future operations, expansion and debt repayment and has no current plans to pay any cash dividends for the foreseeable future. Any decision to declare and pay dividends will be made at the discretion of the Company’s Board and will depend on, among other things, the Company’s results of operations, financial

condition, cash requirements, contractual restrictions and other factors that the Company’s Board may deem relevant. In addition, the Company’s ability to pay dividends may be limited by covenants of any existing and future outstanding indebtedness it or its subsidiaries incur. As a result, you may not receive any return on an investment in the Company’s common stock unless you sell your shares of common stock for a price greater than that which you paid for it.

The issuance of additional shares or other equity securities of equal or senior rank would have the following effects:

The trading price of our common stock is likely to be volatile. The stock market recently has experienced extreme volatility. This volatility often has been unrelated or disproportionate to the operating performance of particular companies. You may not be able to resell your shares at an attractive price due to a number of factors such as the following:

These broad market and industry factors may materially reduce the market price of our securities, regardless of our operating performance. In addition, price volatility may be greater if the public float and trading volume of the common stock is low. As a result, you may suffer a loss on your investment.

Pursuant to Section 404 of the Sarbanes-Oxley Act, the report by management on internal control over financial reporting is on our financial reporting and internal controls. The rules governing the standards that must be met for management to assess internal control over financial reporting are complex and require significant documentation, testing and possible remediation. To comply with the Sarbanes-Oxley Act, the requirements of being a reporting company under the Exchange Act and any complex accounting rules in the future, we may need to upgrade our information technology systems; implement additional financial and management controls, reporting systems and procedures; and hire additional accounting and finance staff.

If we are unable to hire the additional accounting and finance staff necessary to comply with these requirements, we may need to retain additional outside consultants. If we, or our independent registered public accounting firm are unable to conclude that our internal control over financial reporting is effective, investors may lose confidence in our financial reporting, which could negatively impact the market price of our common stock.

Campaigns by stockholders to effect changes at publicly traded companies are sometimes led by investors through various corporate actions, including Board nominations and proxy contests. We may become subject to one or more campaigns by stockholders who desire to increase stockholder value in the short term. If we become engaged in a proxy contest with an activist stockholder in the future, our business and operations could be adversely affected as responding to such contests or other activist stockholder actions would be costly and time-consuming, and we would expect that such actions would disrupt our operations and divert the attention of management and our employees from executing our strategic plans and product launch. In addition, if individuals are elected to our Board with a specific agenda or without relevant experience or expertise, it may adversely affect the ability of the Board to function effectively, as well as our ability to effectively and timely implement our strategic plans, which are focused on building shareholder value. Any perceived uncertainties as to our future direction as a result of stockholder activism or changes to the composition of our Board may lead to the perception of a change in the direction of our business and instability or lack of continuity with respect to our products which may cause concerns for our customers or be exploited by our competitors. As a result, we could experience significant volatility and a decline of our stock price, the loss of potential business opportunities and difficulties in attracting and retaining qualified personnel and customers.

Our certificate of incorporation and our bylaws contain provisions that may delay or prevent an acquisition of the Company or a change in its management. These provisions may make it more difficult for stockholders to replace or remove members of its Board. Because the Board is responsible for appointing the members of the management team, these provisions could in turn frustrate or prevent any attempt by its stockholders to replace or remove its current management. In addition, these provisions could limit the price that investors might be willing to pay in the future for shares of Company common stock. Among other things, these provisions include:

Moreover, because the Company is incorporated in Delaware, it is governed by the provisions of Section 203 of the DGCL, which prohibits a person who owns 15% or more of its outstanding voting stock from merging or combining with the Company for a period of three years after the date of the transaction in which the person acquired 15% or more of the Company’s outstanding voting stock, unless the merger or combination is approved in a prescribed manner. This could discourage, delay or prevent a third party from acquiring or merging with the Company, whether or not it is desired by, or beneficial to, its stockholders. This could also have the effect of discouraging others from making tender offers for the Company’s common stock, including transactions that may be in its stockholders’ best interests. Finally, these provisions establish advance notice requirements for nominations for election to the Board or for proposing matters that can be acted upon at stockholder meetings. These provisions would apply even if the offer may be considered beneficial by some stockholders.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 1C. CYBERSECURITY

We have developed and implemented a cybersecurity risk management program intended to protect the confidentiality, integrity, and availability of our critical systems and information. Our cybersecurity risk management program includes a cybersecurity incident response plan.

We design and assess our program based on the National Institute of Standards and Technology Cybersecurity Framework (“NIST CSF”). This does not imply that we meet any particular technical standards, specifications, or requirements, only that we use the NIST CSF as a guide to help us identify, assess, and manage cybersecurity risks relevant to our business.

Our cybersecurity risk management program is integrated into our overall enterprise risk management program, and shares common methodologies, reporting channels, and governance processes that apply across the enterprise risk management program to other legal, compliance, strategic, operational, and financial risk areas.

Our cybersecurity risk management program includes:

We have not identified risks from known cybersecurity threats, including as a result of any prior cybersecurity incidents, that have materially affected or are reasonably likely to materially affect us, including our operations, business strategy, results of operations, or financial condition. For more information, see our risk factor titled “Cyberattacks and other security breaches could have an adverse effect on our business and operations, harm our reputation, and expose us to liability.”

Our Board considers cybersecurity risk as part of its risk oversight function and has delegated to the Audit Committee oversight of cybersecurity and other information technology risks. The Audit Committee oversees management’s implementation of our cybersecurity risk management program.

The Audit Committee receives quarterly reports from the Chief Information Officer (“CIO”) on our cybersecurity risks. In addition, the CIO updates the Audit Committee, as necessary, regarding any material cybersecurity incidents, as well as any incidents with lesser impact potential.

The Audit Committee reports to the full Board regarding its activities, including those related to cybersecurity. The full Board also receives briefings from the CIO on our cyber risk management program. Board members receive presentations

on cybersecurity topics from our CIO, internal security staff, or external experts as part of the Board’s continuing education on topics that impact public companies.

Our management team, including the Chief Executive Officer (“CEO”), CIO, Chief Marketing Officer, and Chief Legal Officer, is responsible for assessing and managing our material risks from cybersecurity threats. The CIO, in collaboration with the Audit Committee, has primary responsibility for our overall cybersecurity risk management program and supervises both our internal cybersecurity personnel and our retained external cybersecurity consultants.

Energy Vault’s CIO has more than 25 years of cybersecurity and risk management experience across multiple market verticals, including extensive experience overseeing critical and complex cybersecurity teams spanning multiple federal agencies and private industry. Further, the Audit Committee has a combined nine years of experience in organizational cybersecurity and risk management.

Our management team supervises efforts to prevent, detect, mitigate, and remediate cybersecurity risks and incidents through various means, which may include briefings from internal security personnel; threat intelligence and other information obtained from governmental, public, or private sources, including external consultants engaged by us; and alerts and reports produced by security tools deployed in the information environment.

ITEM 2. PROPERTIES

Our principal offices are located in Westlake Village, California, Vienna, Virginia, and Lugano, Switzerland. The Westlake Village office serves as our U.S. headquarters and the Lugano office serves as our international headquarters. The Westlake Village facility consists of approximately 15,767 square feet and is under a lease that expires in November 2028. The Lugano facility is under a lease that expires in July 2027. The Vienna facility is under a lease that expires in January 2025.

ITEM 3. LEGAL PROCEEDINGS

Energy Vault has been and continues to be involved in legal proceedings that arise in the ordinary course of business, the outcome of which, if determined adversely to Energy Vault, would not individually or in the aggregate have a material adverse effect on Energy Vault’s business, financial condition, and results of operations. From time to time, Energy Vault may become involved in additional legal proceedings arising in the ordinary course of its business.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Our common stock is listed on the New York Stock Exchange under the ticker symbol “NRGV.” Prior to February 14, 2022 and before the completion of the Merger, Novus’ Class A common stock traded on the New York Stock Exchange under the ticker symbol “NXU.”

Holders of Record

Dividend Policy

We have not paid any cash dividends on our common stock to date. The payment of cash dividends in the future is dependent upon our revenues and earnings, if any, capital requirements, the terms of any indebtedness, and general financial condition. The payment of any cash dividends will be within the discretion of the Board at such time. In addition, the Board is not currently contemplating and does not anticipate declaring any stock dividends in the foreseeable future.

Unregistered Sales of Equity Securities and Use of Proceeds

There were no unregistered sales of the Company’s equity securities during 2023.

Repurchase of Equity Securities

There were no repurchases of the Company’s equity securities during 2023.

ITEM 6. [RESERVED]

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Our Business

Our Company’s comprehensive offerings include proprietary gravity, battery, and green hydrogen energy storage solutions, supported by our technology-agnostic energy management software solutions. We incorporate a customer-centric, solutions-based approach toward helping utilities, independent power producers, and large industrial energy users reduce their energy costs while maintaining power reliability. As the world transitions to an economy powered by increasingly intermittent renewable energy such as solar and wind, the ability to provide clean and affordable electricity to a growing global population will depend heavily on the ability to store and distribute energy at appropriate times. We are striving to create a world powered by renewable resources so that everyone will have access to clean, sustainable, and affordable energy.

Our solutions are designed to address the intermittency issues inherent in the predominant sources of renewable energy production by storing energy produced when renewable energy production is active. Once energy is stored in our solutions, it can be discharged to the grid in a controlled and reliable manner at any time, regardless of the then current ability of the renewable sources to generate power. Our energy storage solutions are designed to accommodate a wide variety of renewable power sources and to achieve an attractive levelized cost of energy relative to fossil fuels. Collectively, these abilities greatly broaden the use cases and time duration scenarios that can be addressed by certain sources of renewable power.

Key Factors and Trends Affecting our Business

We believe that our performance and future success depend upon several factors that present significant opportunities for us, but also pose risks and challenges including those discussed below and in Part I, Item 1A. “Risk Factors.”

We leverage our sustainable and differentiated technologies to provide our customers with economical solutions to meet their short, long, and extended-duration renewable energy storage needs. Our energy storage solutions are designed to accommodate a wide variety of renewable power sources and to achieve an attractive levelized cost of energy relative to fossil fuels.

We anticipate that our market will be characterized by high growth and rapidly evolving use cases and requirements. We believe that the majority of our competitors are primarily focused on the development and marketing of vertically siloed solutions based on a singular energy storage technology. Alternatively, we have strategically chosen to design an agile and agnostic software platform that can orchestrate the management of not just one energy storage technology, but rather one or more of our diverse storage mediums and the underlying power generation assets to harmonize asset operation and drive competitive operational performance. We expect that this will broaden the use cases and time duration scenarios that can be addressed by certain sources of renewable power, and thereby drive a faster transition to more widespread utilization of renewable power.

Our range of energy storage solutions assures our customers have what they need today, as well as what they will need in the future, thereby protecting their investments in our products within this high-growth market and its rapidly evolving use cases and requirements. For these reasons, we believe we are well positioned to compete successfully in the evolving market for energy storage solutions.

We primarily rely on two models for project delivery, which are (i) EPC delivery and (ii) EEQ delivery. Under the EPC model, we generally rely on third-party EPC firms to construct our storage systems, under our supervision with dedicated teams tasked with project management. Under the EEQ model, we are responsible for the delivery and installation of the equipment we provide, as well as resolving issues within our scope of supply.

Our cost projections are heavily dependent upon raw materials (such as steel), equipment (such as motors, batteries, inverters, and power electronic devices) and technical and construction service providers (such as engineering, procurement, construction firms). The global supply chain, on which Energy Vault relies, has been significantly impacted by (i) the COVID-19 pandemic, (ii) economic uncertainties, including the war in Ukraine and the conflict in the Middle East, and (iii) high inflation pressure on project budgeting resulting in potential significant delays and cost fluctuations, particularly with respect to microchips and many other raw materials that are within the motor and power electronic supply chains. These future timing and financial developments may impact Energy Vault’s performance from both a deployment and cost perspective.

We believe climate change poses a monumental risk to humanity and decreasing human generated GHG emissions is currently among the world’s most pressing challenges. Carbon dioxide is the primary GHG emitted through human activities and, according to the International Energy Agency, the energy sector is estimated to account for more than 75% of global human generated GHG emissions. Burning fossil fuels contributes to climate change by releasing carbon dioxide and nitrous oxide into the atmosphere.

Renewable energy sources present environmental advantages over fossil fuels in terms of finite natural resource usage and GHG emission profile. A major obstacle to transitioning to renewable sources of energy such as wind and solar is the intermittent availability of these types of energy sources. Energy storage solutions are needed to balance the production intermittency of variable renewable energy to support a clean-energy future and a balanced electrical grid infrastructure.

The growth of the energy storage market that we address is primarily driven by the decreasing cost of energy storage technologies and renewable power generation sources, government mandates, financial incentives to reduce GHG

emissions, and increasing geopolitical pressures driving energy independence goals. These dynamics are driving demand for additional renewable power generation and increased capacity and storage duration in energy storage solutions.

According to the 2H 2023 Energy Storage Market Outlook published by BloombergNEF in October 2023, the energy storage market is expected to grow at a “27% compound annual growth rate through 2030, with annual additions reaching 110 GW/372 GWh, or 2.6 times expected 2023 gigawatt installations.” Both government mandates and companies focused on reducing energy use, cost, and emissions are expected to propel the shift to renewable sources of power..

Our business depends on the acceptance of our energy storage products in the marketplace. Even if renewable energy and energy storage become more widely adopted than they have been to date, potential customers may choose energy storage products from our competitors.

Deployment of renewable energy resources has accelerated over the last decade, and solar and wind have become a low cost energy source. Energy storage is critical to reducing the intermittency and volatility of renewable energy generation. However, there is no guarantee that the deployment of renewable energy will occur at the rate that is expected. Inflationary pressures, supply chain disruptions, geopolitical conflicts, government regulations, and other factors could result in fluctuations in demand for and deployment of renewable energy resources, adversely affecting our revenue and ability to generate profits in the future.

The market for our products is competitive, and we may face increased competition as new and existing competitors introduce energy storage solutions and components. Furthermore, as we expand our services and digital applications in the future, we may face other competitors including software providers and hardware manufacturers that offer software solutions. If our market share declines due to increased competition or if we are not able to compete as we expect, our revenue and ability to generate profits in the future may be adversely affected.

In the markets in which we operate, there have been higher rates of inflation in recent years. If inflation continues to increase in our markets, it may increase our expenses that we may not be able to pass through to customers. It may also increase the costs of our products that could negatively impact their competitiveness.

Governments in countries throughout the world have announced and implemented various policies, regulations, and legislation to support the transition from fossil fuels to low-carbon form of energy, including through the use of energy storage solutions. For example, in August 2022, the United States Congress passed the IRA. The IRA provides incentives for the domestic manufacturing of key components of energy storage solutions as well as the construction of standalone energy storage projects. The resulting improved economics are expected to reduce the cost to implement storage within the domestic market and may amplify and accelerate the adoption of energy storage systems for short, long, and extended duration use cases, like those offered by Energy Vault. Such government policies and programs are becoming increasingly instrumental in stimulating adoption of energy storage solutions across different markets through a variety of methods, including by providing financial support, facilitating grid integration, and supporting research and development.

Although we are not regulated as a utility, federal, state, and local government statutes and regulations concerning electricity heavily influence the market for our product and services. These statutes and regulations often relate to electricity pricing, net metering, incentives, taxation, competition with utilities and the interconnection of customer-owned electricity generation. In the United States, governments continuously modify these statutes and regulations. Governments, often acting through state utility or public service commissions, change and adopt different rates for commercial customers on a regular basis. These changes could affect our ability to deliver cost savings to our current and future customers for the purchase of electricity. We believe we are well positioned to capture incentives contained in the IRA and that its enactment is favorable to our business and future operations. However, as this legislation was recently adopted and applicable U.S. Department of Treasury and Internal Revenue Service guidelines were published in the third quarter of 2023, we have not yet seen the impact these IRA incentives may have on our business, operations, and financial performance in the future and cannot guarantee that we will realize the anticipated benefits from the incentives in the IRA.

Business Combination and Public Company Costs

On February 11, 2022, Legacy Energy Vault completed the Merger. Immediately following the completion of the Merger, Novus changed its name to Energy Vault Holdings, Inc. On February 14, 2022, Energy Vault’s common stock and warrants began trading on the New York Stock Exchange under the symbols “NRGV” and “NRGV WS,” respectively.

The Merger was accounted for as a reverse recapitalization in accordance with United States Generally Accepted Accounting Principles (“GAAP”). Under this method of accounting, Novus was treated as the “acquired” company for financial reporting purposes. Accordingly, for accounting purposes, the financial statements of the combined entity upon consumption of the Merger represented a continuation of the financial statements of Legacy Energy Vault with the Merger being treated as the equivalent of Legacy Energy Vault issuing stock for the net assets of Novus, accompanied by a recapitalization. The net assets of Novus are stated at historical cost, with no goodwill or other intangible assets recorded. Operations prior to the Merger are presented as those of Legacy Energy Vault in future reports of the combined entity. All periods prior to the Merger have been retroactively adjusted using the exchange ratio of 6.7735 (the “Exchange Ratio”) for the equivalent number of shares outstanding immediately after the Merger to effect the reverse recapitalization.

Energy Vault raised gross proceeds of $235.9 million, including the contribution of $40.9 million of cash, net of redemptions, held in Novus’ trust account from its initial public offering and an aggregate purchase price of $195.0 million from the sale and issuance of shares of common stock in a private placement (“Private Investment in Public Equity” or “PIPE”) at $10.00 per share. Energy Vault and Novus paid $44.8 million in transaction costs, resulting in total net cash proceeds to Energy Vault from the Merger and PIPE of $191.1 million. See Note 1 and Note 3, in Part II, Item 8. “Financial Statements and Supplementary Data” for additional information about the Merger.

Recent Developments

In October 2023, the Company entered into a contract with a customer to construct a 400 MWh BESS in Texas. The Company did not recognize any revenue from this contract in 2023 and expects to begin recognizing revenue from this contract in the second half of 2024.

In December 2023, the Company signed a license and royalty agreement that allows the customer to use the Company’s gravity energy storage technology and VaultOS EMS in South Africa. The customer obtained a 10-year exclusive license and a $20.0 million licensing fee is payable annually in installments over 10 years. Royalties of 5.0% will be applied to all gross revenue streams in South Africa. The Company did not recognize any revenue from this contract in 2023 and expects to begin recognizing revenue from this contract in the first half of 2024.

Key Operating Metrics

Bookings represents the total MWhs to be delivered and the aggregate contracted value for energy storage systems, tolling arrangements, and intellectual property license agreements, and software service agreements signed during the period. The aggregate contracted value excludes any potential future variable payments or royalties.

The following table presents bookings for the periods indicated ($ in thousands):

assurance as to our customer’s requirements or if actual results will be consistent with our estimates. As a result, our backlog as of any particular date is an uncertain indicator of future revenue and earnings.

Key Components of Results of Operations

The following discussion describes certain line items in our Consolidated Statements of Operations and Comprehensive Loss.

When the Company sells a BESS, the Company recognizes revenue over time as we transfer control of our product to the customer. When the Company licenses its intellectual property, revenue is recognized at the point in time at which the customer obtains control of the licensed technology.

Our revenue is affected by changes in the price, volume, and mix of products and services purchased by our customers, which is driven by the demand of our products, geographic mix of our customers, strength of competitor’s product offerings, and the availability of government incentives to the end-users of our products.

Our revenue growth is dependent on continued growth in the amount of energy storage systems constructed each year and our ability to increase our share of demand in the geographic regions where we currently compete and plan to compete in the future. Additionally, our revenue growth is dependent on our ability to continue to develop and commercialize new and innovative products to meet our customer’s energy storage needs.

Cost of revenue primarily consists of product costs, including purchased materials and supplies, as well as costs related to subcontractors, direct labor, and product warranties.

Our cost of revenue is affected by underlying costs of materials such as batteries, inverters, enclosures, transformers, and cables, as well as the cost of subcontractors to provide construction services. We do not currently hedge against changes in the price of raw materials as we do not purchase raw materials. We purchase energy storage system components from our suppliers.

Gross profit and gross profit margin may vary from period to period due to the timing of transferring control of significant uninstalled materials to customers under contracts to sell energy storage systems. When control of significant uninstalled materials is transferred to customers, the Company recognizes revenue in an amount equal to the cost of those materials. The profit margin inherent in these materials is deferred until the Company fulfills its obligation to install the materials during construction of the energy storage systems. As a result, gross profit and gross profit margin will vary from period to period depending on the timing of revenue recognition related to uninstalled materials.

Additionally, gross profit and gross profit margin may vary from period to period due to our sales volume, product prices, product costs, product mix, geographical mix, along with the timing of when we perform installation and construction services.

S&M expenses consist primarily of internal personnel-related costs for marketing, sales, and related support teams, as well as external costs such as professional service fees, trade shows, marketing and sales-related promotional materials, public relations expenses, website operating and maintenance costs. Personnel-related expenses include salaries, benefits, and stock-based compensation expenses.

R&D expenses consist primarily of internal and external expenses incurred in connection with our research activities and development programs that include materials costs directly related to product development, testing and evaluation costs,

construction costs including labor and transportation of material, overhead related costs and other direct expenses consisting of personnel-related expenses and consulting expenses relating to study of product safety, reliability and development. Personnel-related expenses consist of salaries, benefits, and stock-based compensation expense.

G&A expenses consist of information technology expenses, legal and professional fees, travel costs, and personnel-related expenses for our corporate, executive, finance, and other administrative functions, including expenses for professional and contract services. Personnel-related expenses consist of salaries, benefits, and stock-based compensation expense. To a lesser extent, general and administrative expense includes investor relations costs, insurance costs, rent, office expenses, and maintenance costs.

Depreciation and amortization expense consists of costs associated with property and equipment, and amortization of intangibles. We expect to invest in additional property, equipment, and other assets as we construct and own energy storage systems, which will result in additional depreciation expense in the future.

Energy Vault began building a prototype of the EV1 in March 2020, resulting in the EV1 CDU, which was connected to the Swiss national grid in July 2020. Thereafter, through design improvements and refinements of its technology, Energy Vault announced the new EVx platform in 2021 and the Company dismantled the EV1 CDU in September 2022. The Company has recognized various impairments related to the EV1 CDU when components have been damaged or become obsolete.

Interest income consists of interest income from investments in funds containing exclusively U.S. Treasury bills and money market funds, customer financing receivable, and convertible note receivable.

The Company’s Private Warrants are subject to fair value remeasurement at each balance sheet date. Prior to the redemption of all outstanding Public Warrants on August 1, 2022, the Company’s Public Warrants were subject to fair value remeasurement.

Transaction costs consist of legal, accounting, banking fees, and other costs directly related to the consummation of the Merger and the PIPE.

Results of Operations

The following table sets forth our results of operations for the periods indicated (amounts in thousands):

The Company recognized revenue for the product and service categories as follows for the years ended December 31, 2023 and 2022 (amounts in thousands):

Cost of revenue for the years ended December 31, 2023 and 2022 primarily consisted of construction costs associated with the sale of the Company’s BESSs. The increase in cost of revenue for the year ended December 31, 2023 compared to the

year ended December 31, 2022 was primarily due to the increase in revenue from the sale and transfer of energy storage products.

S&M expenses increased by $5.6 million to $18.2 million for the year ended December 31, 2023, compared to $12.6 million for the year ended December 31, 2022. The increase was primarily attributable to an increase in personnel-related expenses of $4.7 million and an increase in consulting costs of $0.7 million. The increase in personnel costs was due to expanded headcount and increased stock-based compensation expense. Stock-based compensation expense was $7.1 million for the year ended December 31, 2023, compared to $5.1 million for the year ended December 31, 2022.

R&D expenses decreased by $5.5 million to $37.1 million for the year ended December 31, 2023, compared to $42.6 million for the year ended December 31, 2022. The decrease was primarily attributable to a $2.7 million decrease in engineering and development costs, a $2.0 million decrease in personnel-related expenses, and a $0.8 million decrease in consulting costs. These cost decreases were primarily attributable to a focus on cost controls and a reduction in personnel. Stock-based compensation expense was $10.1 million for the year ended December 31, 2023, compared to $14.8 million for the year ended December 31, 2022. The decrease in stock-based compensation expense in 2023 compared to 2022 was partially due to a reversal of expense for non-vested RSUs that were forfeited upon the reduction in personnel.

G&A expenses increased by $11.4 million to $68.1 million for the year ended December 31, 2023, compared to $56.6 million for the year ended December 31, 2022. The increase was primarily attributable to a $9.8 million increase in personnel-related expenses, a $1.4 million increase in software and IT costs, a $1.1 million increase in insurance costs, and a $0.6 million increase in consulting costs. The increase in personnel costs was due to expanded headcount and an increase in stock-based compensation expense. Stock-based compensation expense was $25.9 million for the year ended December 31, 2023, compared to $21.2 million for the year ended December 31, 2022. These cost increases were partially offset by a $1.4 million decrease in legal and professional fees.

Liquidity and Capital Resources

The exercise price for our private warrants is $11.50 per warrant, subject to certain specified adjustments. To the extent that the price of our common stock exceeds $11.50 per share, it is more likely that our private warrant holders will exercise their warrants. To the extent that the price of our common stock declines, including a decline below $11.50 per share, it is less likely that our private warrant holders will exercise their warrants.

Energy Vault has incurred negative operating cash flows and operating losses in the past. We may continue to incur operating losses in the future due to our on-going research and development activities. We may seek additional capital through equity and/or debt financings depending on market conditions. If we are required to raise additional funds by issuing equity securities, dilution to stockholders would result. Any equity securities issued may also provide for rights, preferences or privileges senior to those of holders of our common stock. If we raise funds by issuing debt securities, these debt securities would have rights, preferences and privileges senior to those of holders of common stock. The terms of debt securities or borrowings could impose significant restrictions on our operations. The credit market and financial services industry have in the past, and may in the future, experience periods of uncertainty that could impact the availability and cost of equity and debt financing.

The Company has licensed its gravity storage technology and certain of these agreements contain extended payment terms. There is uncertainty as to the collectability of the license payments in certain licensing agreements, and the Company has not yet recognized any revenue related to those license agreements where collectability is uncertain.

Anticipated cash inflows from licensing agreements with extended payment terms as of December 31, 2023 were as follows (amounts in thousands):

The following table summarizes cash flows from operating, investing, and financing activities for the periods indicated (amounts in thousands):

an increase in prepaid and other current assets of $5.3 million, and an increase in inventory of $4.4 million. Operating cash flows were positively impacted by non-cash charges of $49.3 million, an increase in accounts payable and accrued expenses of $67.9 million, and an increase in contract liabilities of $49.4 million. The non-cash charges primarily consisted of $41.1 million in stock-based compensation expense, $7.7 million in depreciation and amortization expense, and $2.8 million in asset impairment charges, partially offset by a $2.3 million gain from a change in the fair value of the Company’s warrant liability.

For the year ended December 31, 2023, cash used in financing activities was primarily attributable to $6.0 million in tax payments related to the net settlement of equity awards, and $0.9 million in repayments for insurance premium financings. These cash outflows were partially offset by $1.3 million in proceeds from insurance premium financings.

Non-GAAP Financial Measures

To complement our consolidated statements of operations, we use non-GAAP financial measures of adjusted S&M expenses, adjusted R&D expenses, adjusted G&A expenses, and adjusted EBITDA. Management believes that these non-GAAP financial measures complement our GAAP amounts and such measures are useful to securities analysts and investors to evaluate our ongoing results of operations when considered alongside our GAAP measures. The presentation of these non-GAAP measures is not meant to be considered in isolation or as an alternative to net loss as an indicator of our performance.

The following table provides a reconciliation from GAAP S&M expenses to non-GAAP adjusted S&M expenses (amounts in thousands):

The following table provides a reconciliation from GAAP R&D expenses to non-GAAP adjusted R&D expenses (amounts in thousands):

The following table provides a reconciliation from GAAP G&A expenses to non-GAAP adjusted G&A expenses (amounts in thousands):

The following table provides a reconciliation from GAAP net loss to non-GAAP adjusted EBITDA, with net loss being the most directly comparable GAAP measure (amounts in thousands):

We present adjusted EBITDA, which is net loss excluding adjustments that are outlined in the quantitative reconciliation provided above, as a supplemental measure of our performance and because we believe this measure is frequently used by securities analysts, investors, and other interested parties in the evaluation of companies in our industry. The items excluded from adjusted EBITDA are excluded in order to better reflect our continuing operations.

In evaluating adjusted EBITDA, one should be aware that in the future we may incur expenses similar to the adjustments noted above. Our presentation of adjusted EBITDA should not be construed as an inference that our future results will be unaffected by these types of adjustments. Adjusted EBITDA is not a measurement of our financial performance under GAAP and should not be considered as an alternative to net loss, operating loss, or any other performance measures derived in accordance with GAAP or as an alternative to cash flow from operating activities as a measure of our liquidity.

Our adjusted EBITDA measure has limitations as an analytical tool, and should not be considered in isolation or as a substitute for analysis of our results as reported under GAAP. Some of these limitations are:

Because of these limitations, adjusted EBITDA should not be considered as a measure of discretionary cash available to us to invest in the growth of our business or as a measure of cash that will be available to use to meet our obligations. You should compensate for these limitations by relying primarily on our GAAP results and using adjusted EBITDA only supplementally.

Critical Accounting Policies and Use of Estimates

Our consolidated financial statements are prepared in conformity with GAAP. In preparing our financial statements, we make assumptions, judgments, and estimates based on historical experience and various other factors that we believe to be reasonable under the circumstances. Actual results could differ materially from these estimates under different assumptions and conditions.

The Company recognizes revenue over time on these projects as a result of the continuous transfer of control of its products to the customer. The Company utilizes the percentage of completion method based on costs incurred as a percentage of total estimated contract costs to determine the amount of revenue to recognize. Contract costs include all direct materials and labor costs related to contract performance. Since the revenue recognition of these contracts depends on estimates, which are assessed continually during the term of the contract, recognized revenues and profits are subject to revisions as the contract progresses to completion. The cumulative effects of revisions of estimated total contract costs and revenues, together with any contract reserves which may be deemed appropriate, are recorded in the period in which the facts and changes in circumstances become known. Due to uncertainties inherent in the estimation process, it is reasonably possible that these estimates will be revised in a different period.

The Company’s contracts generally provide customers with a right to liquidated damages (“LDs”) against Energy Vault in the event specified milestones are not met on time, or certain performance metrics are not met upon or after the substantial completion date. LDs are accounted for as variable consideration, and the contract price is reduced by the expected penalty

or LD amount when recognizing revenue. Variable consideration is included in the transaction price only to the extent that it is improbable that a significant reversal in the amount of cumulative revenue recognized will occur when the uncertainty is resolved. Estimating variable consideration requires certain estimates and assumptions, including whether and by how much a project will be delayed and how a project will perform during the performance guarantee period. The existence and measurement of liquidated damages may also be impacted by the Company’s judgment about the probability of favorable outcomes of customer disputes involving whether certain events qualify as force majeure or the reason for the events that caused project delays. Variable consideration for LDs is estimated using the expected value of the consideration to be received.

Certain licensing agreements contain a significant financing component due to the customer having extended payment terms. The licensing agreements that contain a significant financing component require the Company to recognize revenue as the present value of the future customer payments. The Company determines the present value of the future customer payments using a discounted cash flow analysis and a discount rate that approximates the interest rate the Company would use in a separate financing transaction with the customer. The discount rate used in the discounted cash flow analysis is highly subjective as it is dependent on the Company’s assessment of the customer’s credit risk.

The Company’s stock-based compensation arrangements are accounted for in accordance with ASC Topic 718, “Share Based Payments.” Compensation expense is recognized over the requisite service period (usually the vesting period) on a straight-line basis and adjusted for actual forfeitures of unvested awards as they occur.

Accounting for stock-based compensation requires us to make a number of judgments, estimates, and assumptions. If any of the estimates prove to be inaccurate, Energy Vault’s net loss and operating results could be affected adversely.

Stock-based compensation for stock options is estimated on the date of grant using the Black-Scholes option-pricing model. The Black-Scholes model considers volatility in the price of the Company’s stock, the risk-free interest rate, the estimated life of the equity-based award, the closing price of the Company’s stock on the grant date, and the exercise price.

Stock-based compensation for RSUs that vest based solely on a service condition is measured based on the closing fair market value of the Company’s common stock on the date of the grant.

Stock-based compensation for RSUs that vest based on market conditions is estimated on the date of the grant using a Monte Carlo simulation model. The Monte Carlo simulation model requires the input of highly subjective assumptions, including the expected term of the award, the expected volatility of the Company’s common stock, risk-free interest rates, and the expected dividend yield of the Company.

Emerging Growth Company Accounting Election

We are an “emerging growth company” as defined in Section 2(a) of the Securities Act of 1933, as amended, and have irrevocably elected to take advantage of the benefits of this extended transition period for new or revised standard. We are expected to remain an emerging growth company through the end of 2026 and expect to continue to take advantage of the benefits of the extended transition period. This may make it difficult or impossible to compare our financial results with the financial results of another public company that is either not an emerging growth company or is an emerging growth company that has chosen not to take advantage of the extended transition period exemptions for emerging growth companies because of the potential differences in accounting standards used.

Recently Adopted and Issued Accounting Pronouncements

Recently issued and adopted/unadopted accounting pronouncements are described in Note 2 of the consolidated financial statements included elsewhere in this Annual Report.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market risk represents the risk of loss that may impact our financial position because of adverse changes in financial market prices and rates.

The majority of our contracts with customers are denominated in U.S. dollars, and certain of our definitive agreements could be denominated in currencies other than the U.S. dollar, including the Euro, the Swiss franc, the Australian dollar, the South African rand, the Brazilian real, and the Saudi riyal. A strengthening of the U.S. dollar could increase the cost of our solutions to our international customers, which could adversely affect our business and results of operations.

In addition, a portion of our operating expenses are incurred outside the United States and are denominated in foreign currencies, such as the euro and the Swiss franc, and are subject to fluctuations due to changes in foreign currency exchange rates. If we increase our exposure to foreign currencies and are not able to successfully hedge against the risks associated with currency fluctuations, our results of operations could be adversely affected.

Our operations could be adversely impacted by inflation, primarily from higher material, labor, and construction costs. While it is difficult to measure the impact of inflation for such estimates accurately, we believe, if our costs are affected due to significant inflationary pressures, we may not be able to fully offset higher costs through price increases or other corrective measures, which may adversely affect our business, financial condition, and results of operations.

Credit risk refers to the risk that a counterparty may default on its contractual obligations resulting in a loss to us. Our customers include the counterparties for the sale of our energy storage products and solutions and the licensees of our intellectual property. A loss of one or more of our significant customers, their inability to perform under their contracts, or their default in payment could harm our business and negatively impact revenue, results of operations, and cash flows. Credit policies have been approved and implemented to assess our existing and potential customers with the objective of mitigating credit losses. These policies establish guidelines, controls, and credit limits to manage credit risk within approved tolerances by mandating an appropriate evaluation of the financial condition of existing and potential customers, monitoring agency credit ratings, and by implementing credit practices that limit exposure according to the risk profiles of the counterparties. In addition, customers are required to make milestone payments based on their project’s progress. We may also, at times, require letters of credit, parent guarantees, or cash collateral when deemed necessary.

Our overall exposure may be affected positively or negatively by macroeconomic or regulatory changes that may impact our counterparties. Currently, management does not anticipate a material adverse effect in our financial position or results of operations from non-performance of a customer. We continuously monitor the creditworthiness of all our customers.

We are subject to risk from fluctuating market prices of certain commodity raw materials, including cement, steel, aluminum, and lithium, that are used in the components that we purchase from our suppliers and then as inputs to our products. Prices of these raw materials may be affected by supply restrictions or other logistic costs market factors from time to time. As we are not the direct buyer of these raw materials, we do not enter into hedging arrangements to mitigate commodity risk. Significant price changes for these raw materials could reduce our operating margins if suppliers increase component prices and we are unable to recover such increases from our customers and could harm our business, financial condition, and results of operations.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Index of Consolidated Financial Statements for the fiscal years ended December 31, 2023 and 2022.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

ENERGY VAULT HOLDINGS, INC.

Consolidated Balance Sheets

(In thousands, except par value)

ENERGY VAULT HOLDINGS, INC.

Consolidated Statements of Operations and Comprehensive Loss

(In thousands, except per share data)

ENERGY VAULT HOLDINGS, INC.

Consolidated Statements of Convertible Preferred Stock and Stockholders’ Equity (Deficit)

(In thousands)

The accompanying notes are an integral part of these consolidated financial statements.

ENERGY VAULT HOLDINGS, INC.

Consolidated Statements of Cash Flows

(In thousands)

Energy Vault Holdings, Inc., which together with its subsidiaries is referred to herein as “Energy Vault” or the “Company”, develops and deploys utility-scale energy storage solutions designed to aid in the global transition to a clean energy future. The Company’s mission is to provide energy storage solutions to accelerate the global transition to renewable energy.

The Company primarily relies on two models for project delivery, which are (i) EPC delivery and (ii) EEQ delivery. Under the EPC model, we generally rely on third-party EPC firms to construct our storage systems, under our supervision with dedicated teams tasked with project management. Under the EEQ model, we are responsible for the delivery and installation of the equipment we provide, as well as resolving issues within our scope of supply.

Our current business model options include:

Throughout the notes to the consolidated financial statements, unless otherwise noted, the “Company,” “we,” “us,” or “our” and similar terms refer to Legacy Energy Vault and its subsidiaries prior to the consummation of the Merger, and Energy Vault and its subsidiaries after the consummation of the Merger.

The accompanying consolidated financial statements have been prepared on an accrual basis of accounting in accordance with GAAP and applicable rules and regulations of the SEC regarding financial reporting.

These consolidated financial statements include Energy Vault Holdings, Inc. and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.

Section 102(b)(1) of the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”) exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Exchange Act) are required to comply with the new or revised financial accounting standards. The JOBS Act provides that an emerging growth company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such election to opt out is irrevocable. The Company has elected not to opt out of such extended transition period, which means that when a standard is issued or revised, and it has different application dates for public or private companies, the Company, as an emerging growth company, can adopt the new or revised standard at the time private companies adopt the new or revised standard.

This may make comparison of the Company’s consolidated financial statement with another public company that is neither an emerging growth company nor an emerging growth company that has opted out of using the extended transition period difficult or impossible because of the potential differences in accounting standards used.

The preparation of the consolidated financial statements, in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The Company evaluates its assumptions on an ongoing basis. The Company’s management believes that the estimates, judgment, and assumptions used are reasonable based upon information available at the time they are made. Significant estimates made by management include, among others, revenue recognition and stock-based compensation. Due to the inherent uncertainty involved in making assumptions and estimates, changes in circumstances could result in actual results differing from those estimates, and such differences could be material to the Company’s consolidated financial condition and results of operations.

The Company reports its operating results and financial information in one operating and reportable segment. Our chief operating decision maker, which is our chief executive officer, reviews our operating results on a consolidated basis and uses that consolidated financial information to make operating decisions, assess financial performance, and allocate resources.

Financial instruments that subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents, restricted cash, accounts receivable, and customer financings receivable.

Risks associated with cash and cash equivalents and restricted cash are mitigated by banking with creditworthy institutions. Such balances with any one institution may, at times, be in excess of federally insured amounts.

As of December 31, 2023, one customer accounted for 92% of accounts receivable and as of December 31, 2022, two customers accounted for 78% and 16% of accounts receivable, respectively.

As of December 31, 2023 and December 31, 2022, one customer accounted for 100% of the customer financing receivable.

Revenue from three customers accounted for 64%, 22%, and 13% of total revenue, respectively, for the year ended December 31, 2023 and revenue from two customers accounted for 57% and 35% of total revenue, respectively, for the year ended December 31, 2022.

Assets and liabilities denominated in a foreign currency are translated into U.S dollars using the exchange rates in effect at the balance sheet date. Revenue and expense accounts are translated at the average exchange rates during the periods. The impact of exchange rate fluctuations from translation of assets and liabilities is included in accumulated other comprehensive loss, a component of stockholders’ equity. As of December 31, 2023, accumulated other comprehensive loss included a $0.3 million loss related to currency translation adjustments. As of December 31, 2022, accumulated other comprehensive loss included a $0.2 million loss related to currency translation adjustments.

Gains and losses resulting from foreign currency transactions are included in other expense, net in the accompanying consolidated statements of operations.

the reporting date. The accounting guidance establishes a three-tiered hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value as follows:

Once a contract is determined to be within the scope of ASC 606, the Company assesses the goods or services promised within each contract and determines those that are performance obligations. Arrangements that include rights to additional goods or services that are exercisable at a customer’s discretion are generally considered options. The Company assesses if these options provide a material right to the customer and if so, they are considered performance obligations. The identification of material rights requires judgments related to the determination of the value of the underlying good or service relative to the option exercise price.

The Company assesses whether each promised good or service is distinct for the purposes of identifying performance obligations in the contract. This assessment involves subjective determination and requires management to make judgments about the individual promised goods or services and whether such are separable from the other aspects of the contractual relationship. Promised goods and services are considered to be distinct provided that: (i) the customer can benefit from the good or service either on its own or together with the other resources that are readily available to the customer (that is, the good or service is capable of being distinct) and (ii) the entity’s promise to transfer the good or service to the customer is separately identifiable from other promises in the contract (that is, the promise to transfer the good or service is distinct within the context of the contract). The Company also considers the intended benefit of the contract in assessing whether a promised good or service is separately identifiable from other promises in the contract. If a promised good or service is not distinct, an entity is required to combine that good or service with other promised goods or services until it identifies a bundle of goods or services that is distinct.

The transaction price is determined and allocated to the identified performance obligations in proportion to their stand-alone selling prices (“SSP”) on a relative SSP basis. SSP is determined at contract inception and is not updated to reflect changes between contract inception and when the performance obligations are satisfied. Determining the SSP for performance obligations requires significant judgment. In developing the SSP for a performance obligation, the Company considers applicable market conditions and relevant entity-specific factors, including factors that were contemplated in negotiating the agreement with the customer and estimated costs.

In determining the transaction price, the Company adjusts consideration for the effects of the time value of money if the timing of payments provides the Company with a significant benefit of financing. When a contract provides the customer with a significant benefit of financing, the Company recognizes a customer financing receivable and recognizes interest income separate from the revenue recognized on the contracts with customers. The Company does not assess whether a

contract has a significant financing component if the expectation at contract inception is such that the period between payment and the transfer of the promised goods or services will be one year or less.

The Company recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) each performance obligation is satisfied, either at a point in time or over time. Over time revenue recognition is based on the use of an output or input method.

The Company recognizes revenue over time as a result of the continuous transfer of control of its products to the customer. The continuous transfer of control to the customer is supported by clauses in the contracts that provide enforceable rights to payment of the transaction price associated with work performed to date for products that do not have an alternative use to the Company and/or the project is built on the customer’s land that is under the customer’s control.

Revenue for these performance obligations is recognized using the percentage of completion method based on cost incurred as a percentage of total estimated contract costs. Contract costs include all direct materials and labor costs related to contract performance. Pre-contract costs with no future benefit are expensed in the period in which they are incurred. Since the revenue recognition of these contracts depends on estimates, which are assessed continually during the term of the contract, recognized revenues and profit are subject to revisions as the contract progresses to completion. The cumulative effects of revisions of estimated total contract costs and revenues, together with any contract reserves which may be deemed appropriate, are recorded in the period in which the facts and changes in circumstances become known. Due to uncertainties inherent in the estimation process, it is reasonably possible that these estimates will be revised in a different period. When a loss is forecasted for a contract, the full amount of the anticipated loss is recognized in the period in which it is determined that a loss will incur.

The Company’s contracts generally provide customers the right to liquidated damages (“LDs”) against Energy Vault in the event specified milestones are not met on time, or certain performance metrics are not met upon or after the substantial completion date. LDs are accounted for as variable consideration, and the contract price is reduced by the expected penalty or LD amount when recognizing revenue. Variable consideration is included in the transaction price only to the extent that it is improbable that a significant reversal in the amount of cumulative revenue recognized will occur when the uncertainty is resolved. Estimating variable consideration requires certain estimates and assumptions, including whether and by how much a project will be delayed. The existence and measurement of liquidated damages may also be impacted by the Company’s judgment about the probability of favorable outcomes of customer disputes involving whether certain events qualify as force majeure or the reason for the events that caused project delays. Variable consideration for LDs is estimated using the expected value of the consideration to be received. If Energy Vault has a claim against the customer for an amount not specified in the contract, such claim is recognized as an increase to the contract price when it is legally enforceable, which is usually upon signing a respective change order or equivalent document confirming the claim acceptance by the customer.

The Company offers limited warranties on the Company’s energy storage systems which provide the customer assurance that the energy storage systems will function as the parties intended because it complies with agreed-upon specifications and are free from defects. These assurance-type warranties are not treated as a separate revenue performance obligation and are accounted for as guarantees under GAAP.

To date, the Company has not recognized any revenue related to providing long term service arrangements. This method of revenue recognition will be determined once the Company finalizes agreements with its future customers.

The Company considers all highly liquid investments purchased with an original or remaining maturity of three months or less to be cash equivalents. At December 31, 2023, the Company maintained investments in money market accounts totaling $98.4 million, including $98.0 million in U.S. government money market funds. At December 31, 2022, the Company maintained money market funds totaling $5.4 million and a cash sweep account invested primarily in U.S. Treasury and other short-term securities totaling $66.5 million.

Restricted cash as of December 31, 2023 and 2022 primarily consisted of cash held by banks as collateral for the Company’s letters of credit.

Accounts receivable represents amounts that have an unconditional right to consideration, have been billed to customers, and do not bear interest. Receivables are carried at the original invoiced amount, less an allowance for any potential uncollectible amounts.

The Company evaluates its customer financing receivable on a periodic basis by monitoring the credit quality and financial condition of the guarantor for the customer. The amortized cost basis for the Company’s customer financing receivable was $10.7 million and $9.8 million as of December 31, 2023 and 2022, respectively.

The Company estimates expected uncollectible amounts related to its accounts receivable, customer financing receivable, and contract asset balances as of the end of each reporting period, and presents those financial asset balances net of an allowance for expected credit losses in the consolidated balance sheets. The Company utilizes a probability-of-default (“PD”) and loss-given-default (“LGD”) methodology to calculate the allowance for credit losses for each customer by type of financial asset. Due to the Company’s limited operating history and lack of loss history, the Company derived its PD and LGD rates using historical rates for corporate bonds as published by Moody’s. The Company uses PD and LGD rates that correspond to the customer’s credit rating and period of time in which the financial asset is expected to remain outstanding.

Inventory consists of equipment and spare parts, which are used in ongoing battery storage projects for sale. Inventory is stated at the lower of cost or net realizable value with cost being determined by the specific identification method. Costs include the cost of purchase and other costs incurred in bringing the inventories to their present location and condition. The Company periodically reviews its inventory for potential obsolescence and write down of its inventory, as appropriate, to net realizable value based on its assessment of market conditions.

The Company classifies assets to be disposed of as held for sale in the period in which they are available for sale in their present condition and when the sale is probable and expected to be completed within one year. Assets classified as held for sale are measured at the lower of their carrying amount or fair value less costs to sell. Further, the Company does not record depreciation and amortization expense on assets that are classified as held for sale. The Company has classified property, equipment, and intangible assets that were acquired in December 2023 as held for sale as of December 31, 2023 because the Company purchased the assets with the intent and ability to resell them within one year of acquiring the assets.

Property and equipment are stated at cost, net of accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the respective assets. Maintenance and repairs are charged to expense as incurred. When assets are retired or sold, the cost and related accumulated depreciation are removed from the consolidated balance sheet and any resulting gain or loss is reflected in operating expenses in the period realized.

The Company reviews long-lived assets, primarily comprised of property and equipment, intangible assets, and operating right-of-use assets, for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability is measured by comparison of the carrying amount to the future undiscounted net cash flows which the assets are expected to generate. If the carrying value of the assets exceeds the sum of the estimated future cash flows, the impairment to be recognized is measured as the amount by which the carrying amount of the assets exceed their fair value.

During 2022 and 2023, the Company made a strategic investment and purchased equity securities in KORE, a U.S. manufacturer of battery cells and modules. The Company’s ownership in KORE does not provide the Company with the ability to exercise significant influence. These equity securities do not have a readily determinable fair value and are recorded at cost, less any impairment, plus or minus adjustments related to observable transactions for the same or similar securities, with unrealized gains and losses included in earnings. As of December 31, 2023 and 2022, the cost basis of these securities was equal to their carrying value. The Company did not recognize any impairments or value changes resulting from observable price changes during the years ended December 31, 2023 and 2022. The carrying value of the Company’s investment in equity securities is included in the line item, investments, in the consolidated balance sheets.

The Company determines if a contract contains a lease at its inception based on whether or not the Company has the right to control the asset during the contract period and other facts and circumstances. Right-of-use (“ROU”) assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease.

ROU assets are classified as either operating or finance leases. Upon commencement of the lease, a ROU asset and corresponding lease liability are recognized for all operating and finance leases. The Company has elected the short-term lease exemption, which does not require a ROU asset or lease liability to be recognized when the lease term is 12 months or less and does not include an option to purchase the underlying asset that the lessee is reasonably certain to exercise. The Company has decided not to elect the policy to not separate lease and non-lease component in arrangements whereby the Company is the lessee.

Upon commencement of the lease, ROU assets are recognized based on the initial measurement of the lease liability and adjusted for any lease payments made before commencement date of the lease, less any lease incentives and including any initial direct costs incurred. Lease liabilities are initially measured at the present value of future minimum lease payments over the lease term.

The discount rate used to determine the present value is the rate implicit in the lease unless that rate cannot be determined, in which case Company’s incremental borrowing rate is used, which is based on the estimated interest rate for collateralized borrowing over a similar term of the lease at commencement date.

Rights to extend or terminate a lease are included in the lease term when there is reasonable certainty the right will be exercised. Factors used to assess reasonable certainty of rights to extend or terminate a lease include current and forecasted lease improvement plans, anticipated changes in development strategies, historical practice in extending similar contracts and current market conditions.

Operating lease ROU assets and liabilities are subsequently measured at the present value of the lease payments not yet paid and discounted at the initial discount rate at commencement of the lease, less any impairments to the ROU asset. Operating lease expense is recognized on a straight-line basis over the lease term. Finance lease ROU assets are amortized on a straight-line basis over the estimated useful life of the asset if the lessee is reasonably certain to exercise a purchase option or ownership of the leased asset transfers at the end of the lease term, otherwise the leased assets are amortized over the lease term. Amortization of finance lease ROU assets is included in depreciation and amortization.

Operating lease ROU assets are recognized on the consolidated balance sheets in the line item, operating lease right-of-use assets, and finance lease ROU assets are recognized on the consolidated balance sheets within the line item, property and equipment, net.

The Company’s wholly owned subsidiary in Switzerland has a defined benefit pension obligation covering retirement and other long-term benefits of the local employees. Accrued pension costs are developed using actuarial principles and assumptions which consider a number of factors, including estimates for the discount rate, expected long-term rate of return on assets and mortality. Changes in these estimates would impact the amounts that the Company records in the consolidated financial statements.

The Company assumed Public Warrants and Private Warrants upon the Closing. The Company accounts for warrants for shares of the Company’s common stock that are not indexed to its own stock as liabilities at fair value on the consolidated balance sheets. The warrants are subject to remeasurement at each balance sheet date and any change in fair value is recognized in the Company’s consolidated statements of operations. For issued or modified warrants that meet all of the criteria for equity classification, the warrants are required to be recorded as a component of additional paid-in-capital at the time of issuance. For issued or modified warrants that do not meet all the criteria for equity classification, the warrants are required to be recorded as a liability at their initial fair value on the date of issuance, and each balance sheet date thereafter. Changes in the estimated fair value of the warrants are recognized as a non-cash gain or loss in the consolidated statements of operations.

In connection with the reverse recapitalization and pursuant to the Merger Agreement, eligible Legacy Energy Vault stockholders immediately prior to the Closing, have the contingent right to receive an aggregate of 9.0 million shares of the Company’s common stock (“Earn-Out Shares”) upon the Company achieving each Earn-Out Triggering Event (defined below) during the period beginning on the 90th day following the Closing and ending on the third anniversary of such date. An “Earn-Out Triggering Event” means the date on which the closing price of the Company’s common stock quoted on the NYSE is greater than or equal to certain specified prices for any 20 trading days within a 30 consecutive day trading period.

The Earn-Out Shares were recognized at fair value upon the Closing of the Merger and classified in shareholders’ equity. Because the Merger was accounted for as a reverse recapitalization, the issuance of the Earn-Out Shares was treated as a deemed dividend and since the Company does not have retained earnings, the issuance was recorded within additional-paid-in capital (“APIC”) and has a net nil impact on APIC.

Research and development costs are expensed as incurred. Research and development costs consist of salaries and other personnel related expenses, engineering expenses, product development costs and facility costs.

Advertising costs are expensed as incurred and are reflected in the line item, sales and marketing, in the consolidated statements of operations. Advertising expenses were $0.5 million and $0.3 million for the years ended December 31, 2023 and 2022, respectively.

The Company issues stock-based compensation awards to employees, directors, and non-employees in the form of stock options and restricted stock units (“RSUs”). The Company measures and recognizes compensation expense for stock-based awards based on the award’s fair value on the date of the grant. The Company accounts for forfeitures of stock-based awards when they occur. The fair value of RSUs that vest based on service conditions is measured using the fair value of the Company’s common stock on the date of the grant. The fair value of RSUs that vest based on market conditions is measured using a Monte Carlo simulation model on the date of the grant. The fair value of stock options that vest based on service conditions is measured using the Black-Scholes option pricing model on the date of the grant. The Monte Carlo simulation model and the Black-Scholes option pricing model require the input of highly subjective assumptions, including the fair value of the Company’s common stock, the expected term of the award, the expected volatility of the Company’s common stock, risk-free interest rates, and the expected dividend yield of the Company’s common stock. This assumption used to determine the fair value of the awards represent management’s best estimates. These estimates involve inherit uncertainties and the application of management’s judgment.

The fair value of awards is recognized on a straight-line basis over the requisite service period. The fair value of the market-based RSUs is recognized over the requisite service period regardless of whether or not the RSUs ultimately vest and convert to common stock.

Transaction costs consist of direct legal, accounting, and other fees related to the consummation of the Merger. These costs were initially capitalized as incurred in prepaid assets and other current assets in the consolidated balance sheet. Upon the Closing, transaction costs related to the issuance of shares were recognized in stockholders’ deficit while costs associated with the public and private warrants liabilities were expensed in the consolidated statements of operations and comprehensive loss. The Company and Novus incurred in aggregate $44.8 million in transaction costs during the year ended December 31, 2022, consisting of underwriting, legal, and other professional fees, of which $24.2 million was recorded to additional paid-in-capital as a reduction of proceeds and the remaining $20.6 million was expensed immediately upon the Closing.

Deferred income tax balances reflect the effects of temporary differences between the carrying amounts of assets and liabilities and their tax bases and are stated at enacted tax rates expected to be in effect when taxes are actually paid or recovered. Deferred tax assets are evaluated for future realization and reduced by a valuation allowance to the extent the Company believes they will not be realized.

Basic net loss per share of common stock is calculated by dividing net loss by the weighted average number of common shares outstanding for the applicable period. Diluted net loss is computed based on the weighted average number of common shares outstanding increased by the number of additional shares that would have been outstanding had the potentially dilutive common shares been issued, including any dilutive effect from convertible preferred stock, outstanding stock options, or unvested RSUs, and reduced by the number of shares the Company could have repurchased with the proceeds from the issuance of the potentially dilutive shares. Potentially dilutive instruments are excluded from the per share calculation because the Company is in a net loss position and they would therefore be anti-dilutive.

The following transactions were completed as part of the Merger:

The Merger was accounted for as a reverse recapitalization in accordance with GAAP. Under this method of accounting, Novus was treated as the acquired company for financial reporting purposes. The reverse recapitalization accounting treatment was primarily determined based on the shareholders of Legacy Energy Vault having a relative majority of the voting power of Energy Vault and having the ability to nominate the majority of the members of the Energy Vault Board, senior management of Legacy Energy Vault comprise the senior management of Energy Vault, and the operations of Legacy Energy Vault prior to the Merger comprise the ongoing operations of Energy Vault. Accordingly, for accounting purposes, the financial statements of the combined entity upon consummation of the Merger represent a continuation of the financial statements of Legacy Energy Vault with the Merger being treated as the equivalent of Legacy Energy Vault issuing shares for the net assets of Novus, accompanied by a recapitalization. The net assets of Novus were recognized at historical cost, with no goodwill or other intangible assets recorded. Operations prior to the Merger are presented as those of Legacy Energy Vault and the accumulated deficit of Legacy Energy Vault has been carried forward after Closing.

All periods prior to the Merger have been retroactively adjusted using the Exchange Ratio for the equivalent number of shares outstanding immediately after the Closing to effect the reverse recapitalization.

The number of shares of common stock issued following the consummation of the Merger was as follows (amounts in thousands):

The following table summarizes the Company’s revenue disaggregated by geographic region, which is determined based on the customer’s location, for the years ended December 31, 2023 and 2022 (amounts in thousands):

Remaining performance obligations represent the amount of unearned transaction prices under contracts for which work is wholly or partially unperformed. As of December 31, 2023, the amount of the Company’s remaining performance obligations was $144.2 million. The Company generally expects to recognize approximately 16.0% of the remaining performance obligations as revenue over the next 12 months and the remainder more than 12 months from December 31, 2023.

Contract assets consist of a refundable contribution, unbilled receivables, and retainage. Refundable contribution represents the contribution the Company made to a company to be used during the construction of its first GESS, which will be refunded to the Company upon the customer’s first GESS obtaining substantial completion, subject to adjustments for potential liquidated damages if certain performance metrics are not met. Unbilled receivables represent the estimated value of unbilled work for projects with performance obligations recognized over time. Retainage represents a portion of the contract amount that has been billed, but for which the contract allows the customer to retain a portion of the billed amount until final contract settlement. Retainage is not considered to be a significant financing component because the intent is to protect the customer.

Contract liabilities consist of deferred revenue. Under certain contracts, the Company may be entitled to invoice the customer and receive payments in advance of performing the related contract work. In those instances, the Company recognizes a liability for advance billings in excess of revenue recognized, which is referred to as deferred revenue. Deferred revenue is not considered to be a significant financing component because it is generally used to meet working capital demands that can be higher in the early stages of a contract. For the years ended December 31, 2023 and 2022, the Company recognized revenue of $46.0 million and $— million, respectively, related to amounts that were included in deferred revenue as of the beginning of their respective years.

Activity in the allowance for credit losses was as follows for the year ended December 31, 2023 (amounts in thousands):

The Company did not have an allowance or provision for credit losses as of and for the year ended December 31, 2022.

Carrying amounts of certain financial instruments, including cash, accounts payable, and accrued liabilities approximate their fair value due to their relatively short maturities and market interest rates, if applicable.

The Company categorizes assets and liabilities recorded or disclosed at fair value on the consolidated balance sheet based upon the level of judgment associated with inputs used to measure their fair value. The categories are as follows:

The Company’s financial assets and liabilities that were measured at fair value on a recurring basis were as follows as of December 31, 2023 and 2022, respectively (amounts in thousands):

In May 2019, the Company received a $1.5 million deposit for a gravity based system from a customer that was owned by one of its primary shareholders; the order remains outstanding as of December 31, 2023. The deposit and order were received before the owner of the customer became one of the Company’s primary shareholders. This deposit is recognized in the line item, contract liabilities, long-term portion, in the consolidated balance sheets.

The following table provides a reconciliation of investments to the Company’s consolidated balance sheets (amounts in thousands):

In October 2021, the Company entered into a convertible promissory note purchase agreement with DG Fuels, LLC (“DG Fuels”) and purchased a promissory note with a principal balance of $1.0 million (“DG Fuels Tranche 1 Note”). In April

2022, the Company purchased an additional promissory note from DG Fuels with a principal balance of $2.0 million. (“DG Fuels Tranche 2 Note”) (collectively, the “DG Fuels Note”).

The maturity date of the DG Fuels Note is the earlier of (i) 30 days after a demand for payment is made by the Company at any time after the two year anniversary of the date of issuance of the note; (ii) the four year anniversary of the date of issuance of the note; (iii) five days following a Financial Close (“Financial Close” means a project finance style closing by DG Fuels or its subsidiary of debt and equity capital to finance the construction of that certain biofuel facility currently under development by DG Fuels), or (iv) upon an event of default determined at the discretion of the Company. The DG Fuels Note has an annual interest rate of 10.0%.

The Company intends to hold and convert the DG Fuels Note into the equity securities issued by DG Fuels in its next equity financing round that is greater than $20.0 million at a 20% discount to the issuance price. The principal balance and unpaid accrued interest on the DG Fuels Note will, at the option of the Company, convert into equity securities upon the closing of such next equity financing round.

A reconciliation of the beginning and ending asset balance for the embedded derivative in the DG Fuels Note is as follows (amounts in thousands):