Portland General Electric (POR) 8-KPortland General Electric

In 2023, PGE entered into an equity distribution agreement under which it could sell up to $300 million of its common stock through at-the-market offering programs. In March 2024, the Company issued shares pursuant to the agreements and received net proceeds of $78 million. In the second quarter of 2024, PGE entered into additional forward sale agreements with counterparties, exhausting the $300 million facility. As of June 30, 2024, these additional agreements were outstanding.

On July 26, 2024, PGE registered a new $400 million at-the-market offering program. Any proceeds from the issuances of common stock will be used for general corporate purposes and investments in renewables and non-emitting dispatchable capacity.

As previously announced, on July 19, 2024, the board of directors of Portland General Electric Company approved a quarterly common stock dividend of $0.50 per share. The quarterly dividend is payable on or before October 15, 2024 to shareholders of record at the close of business on September 24, 2024.

PGE is reaffirming its estimate for full-year 2024 adjusted earnings guidance of $2.98 to $3.18 per diluted share based on the following assumptions:

PGE will host a conference call with financial analysts and investors on Friday, July 26, 2024, at 11 a.m. ET. The conference call will be webcast live on the PGE website at investors.portlandgeneral.com. A webcast replay will also be available on PGE’s investor website "Events & Presentations" page beginning at 2 p.m. ET on July 26, 2024.

Maria Pope, President and CEO; Joe Trpik, Senior Vice President of Finance and CFO; and Nick White, Manager of Investor Relations, will participate in the call. Management will respond to questions following formal comments.

The attached unaudited condensed consolidated statements of income and comprehensive income, balance sheets and statements of cash flows, as well as the supplemental operating statistics, are an integral part of this earnings release.

Items in the periods presented, which PGE believes impact the comparability of comparative earnings and do not represent ongoing operating financial performance, include the following:

PGE’s reconciliation of non-GAAP earnings for the quarter ended June 30, 2023 are below.

Portland General Electric (NYSE: POR) is an integrated energy company that generates, transmits and distributes electricity to over 930,000 customers with a service area population of approximately 1.9 million Oregonians. For more than 130 years, Portland General Electric (PGE) has been powering social progress, delivering safe, affordable, reliable and increasingly clean electricity while working to transform energy systems to meet evolving customer needs. PGE customers have set the standard for prioritizing clean energy with the No. 1 voluntary

renewable energy program in the country. PGE is committed to reducing emissions from its retail power supply by 80% by 2030 and 100% by 2040. PGE is recognized by the Bloomberg Gender-Equality Index for the company's commitment to creating a more equal, inclusive workplace. In 2023, PGE employees, retirees and the PGE Foundation donated nearly $4.6 million and volunteered over 23,000 volunteer hours to more than 400 nonprofit organizations. For more information visit www.PortlandGeneral.com/news.

Statements in this press release that relate to future plans, objectives, expectations, performance, events and the like may constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements represent our estimates and assumptions as of the date of this report. The Company assumes no obligation to update or revise any forward-looking statement as a result of new information, future events or other factors.

Forward-looking statements include statements regarding the Company's full-year earnings guidance (including assumptions and expectations regarding annual retail deliveries, average hydro conditions, wind generation, normal thermal plant operations, operating and maintenance expense and depreciation and amortization expense) as well as other statements containing words such as "anticipates," "assumptions," "based on," "believes," "conditioned upon," "considers," "could," "estimates," "expects," "forecast," "goals," "intends," "needs," "plans," "predicts," "projects," "promises," "seeks," "should," "subject to," "targets," "will continue," "will likely result," or similar expressions.

Investors are cautioned that any such forward-looking statements are subject to risks and uncertainties, including, without limitation: the timing or outcome of various legal and regulatory actions; changing customer expectations and choices that may reduce demand for electricity; the sale of excess energy during periods of low demand or low wholesale market prices; operational risks relating to the Company's generation and battery storage facilities, including hydro conditions, wind conditions, disruption of transmission and distribution, disruption of fuel supply, and unscheduled plant outages, which may result in unanticipated operating, maintenance and repair costs, as well as replacement power costs; delays in the supply chain and increased supply costs (including application of tariffs impacting solar module imports), failure to complete capital projects on schedule or within budget, failure of counterparties to perform under agreement, or the abandonment of capital projects, which could result in the Company's inability to recover project costs, or impact our competitive position, market share, revenues and project margins in material ways; default or nonperformance of counterparties from whom PGE purchases capacity or energy, which require the purchase of replacement power and renewable attributes at increased costs; complications arising from PGE’s jointly-owned plant, including ownership changes, regulatory outcomes or operational failures; the costs of compliance with environmental laws and regulations, including those that govern emissions from thermal power plants; changes in weather, hydroelectric and energy market conditions, which could affect the availability, cost and required collateral for purchased power and fuel; changes in capital and credit market conditions, including volatility of equity markets as well as changes in PGE’s credit ratings and outlook on such credit ratings, reductions in demand for investment-grade commercial paper or interest rates, which could affect the access to and availability or cost of capital and result in delay or cancellation of capital projects or execution of the Company’s strategic plan as currently envisioned; general economic and financial market conditions, including inflation; the effects of climate change, whether global or local in nature; unseasonable or severe weather conditions, wildfires, and other natural phenomena and natural disasters that could result in operational disruptions, unanticipated restoration costs, third party liability or that may affect energy costs or consumption; the effectiveness of PGE’s risk management policies and procedures; PGE’s ability to effectively implement Public Safety Power Shutoffs (PSPS) and de-energize its system in the event of heightened wildfire risk; cyber security attacks, data security breaches, physical attacks and security breaches, or other malicious acts, which could disrupt operations, require significant expenditures, or result in claims against the Company; employee workforce factors, including potential strikes, work stoppages, transitions in senior management, and the ability to recruit and retain key employees and other talent and turnover due to macroeconomic trends; widespread health emergencies or outbreaks of infectious diseases such as COVID-19, which may affect our financial position, results of operations and cash flows; failure to achieve the Company’s greenhouse gas emission goals or being perceived to have either failed to act responsibly with respect to the environment or effectively responded to legislative requirements concerning

greenhouse gas emission reductions; social attitudes regarding the electric utility and power industries; political and economic conditions; acts of war or terrorism; changes in financial or regulatory accounting principles or policies imposed by governing bodies; changes in effective tax rate; and risks and uncertainties related to generation and transmission projects, including, but not limited to, regulatory processes, transmission capabilities, system interconnections, permitting and construction delays, legislative uncertainty, inflationary impacts, supply costs and supply chain constraints. As a result, actual results may differ materially from those projected in the forward-looking statements.

Risks and uncertainties to which the Company are subject are further discussed in the reports that the Company has filed with the United States Securities and Exchange Commission (SEC). These reports are available through the EDGAR system free-of-charge on the SEC’s website, www.sec.gov and on the Company’s website, investors.portlandgeneral.com. Investors should not rely unduly on any forward-looking statements.