Ormat (ORA) 10-Q4 Aug 232023 Q2 Quarterly reportFinancial data

Company Profile

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
Document And Entity Information - shares	Jun. 30, 2023	Aug. 01, 2023
Document Information [Line Items]
Entity Central Index Key	0001296445
Entity Registrant Name	ORMAT TECHNOLOGIES, INC.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2023
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2023
Document Transition Report	false
Entity File Number	001-32347
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	88-0326081
Entity Address, Address Line One	6140 Plumas Street
Entity Address, City or Town	Reno
Entity Address, State or Province	NV
Entity Address, Postal Zip Code	89519-6075
City Area Code	775
Local Phone Number	356-9029
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		60,260,334
Title of 12(b) Security	Common Stock
Trading Symbol	ORA
Security Exchange Name	NYSE

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands		Jun. 30, 2023		Dec. 31, 2022
Current assets:
Cash and cash equivalents		$ 275,066		$ 95,872
Restricted cash and cash equivalents (primarily related to VIEs)		120,316		130,804
Receivables:
Trade less allowance for credit losses of $90 and $90, respectively (primarily related to VIEs)		148,060		128,818
Other		35,525		32,415
Inventories		37,900		22,832
Costs and estimated earnings in excess of billings on uncompleted contracts	[1]	21,786		16,405
Prepaid expenses and other		47,328		29,571
Total current assets		685,981		456,717
Investment in unconsolidated companies		126,451		115,693
Deposits and other		41,991		39,762
Deferred income taxes		166,477		161,365
Property, plant and equipment, net		2,836,003		2,493,457
Construction-in-process		714,850		893,198
Operating leases right of use		23,223		23,411
Finance leases right of use		4,365		3,806
Intangible assets, net		320,847		333,845
Goodwill		90,456		90,325
Total assets		5,010,644	[2],[3]	4,611,579
Current liabilities:
Accounts payable and accrued expenses		174,715		149,423
Billings in excess of costs and estimated earnings on uncompleted contracts		18,651		8,785
Current portion of long-term debt:
Limited and non-recourse (primarily related to VIEs)		59,938		64,044
Full recourse		110,070		101,460
Financing liability		15,454		16,270
Operating lease liabilities		2,703		2,347
Finance lease liabilities		1,678		1,581
Total current liabilities		383,209		343,910
Long-term debt, net of current portion:
Financing liability		220,603		225,759
Operating lease liabilities		19,748		19,788
Finance lease liabilities		2,881		2,262
Liability associated with sale of tax benefits		150,212		166,259
Deferred income taxes		74,655		83,465
Liability for unrecognized tax benefits		6,684		6,559
Liabilities for severance pay		12,083		12,833
Asset retirement obligation		102,190		97,660
Other long-term liabilities		23,360		3,317
Total liabilities		2,593,594		2,581,014
Commitments and contingencies (Note 9)
Redeemable noncontrolling interest		10,008		9,590
Equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 60,260,334 and 56,095,918 issued and outstanding as of June 30, 2023 and December 31, 2022, respectively		60		56
Additional paid-in capital		1,609,298		1,259,072
Treasury stock, at cost (258,667 shares held as of June 30, 2023 and December 31, 2022, respectively)		(17,964)		(17,964)
Retained earnings		663,166		623,907
Accumulated other comprehensive income (loss)		(170)		2,500
Total stockholders' equity attributable to Company's stockholders		2,254,390		1,867,571
Noncontrolling interest		152,652		153,404
Total equity		2,407,042		2,020,975
Total liabilities, redeemable noncontrolling interest and equity		5,010,644		4,611,579
Senior Secured Notes [Member]
Long-term debt, net of current portion:
Limited and non-recourse (primarily related to VIEs and less deferred financing costs of $8,483 and $10,272, respectively)		484,078		521,885
Senior Unsecured Bonds [Member]
Long-term debt, net of current portion:
Full recourse (less deferred financing costs of $3,300 and $2,995, respectively)		691,934		676,512
Convertible Senior Notes [Member]
Long-term debt, net of current portion:
Convertible senior notes (less deferred financing costs of $9,293 and $10,445, respectively)		$ 421,957		$ 420,805

[1]Contract assets and contract liabilities are presented as "Costs and estimated earnings in excess of billings on uncompleted contracts" and "Billings in excess of costs and estimated earnings on uncompleted contracts", respectively, on the condensed consolidated balance sheets. The contract liabilities balance at the beginning of the year was not yet fully recognized as product revenues during the three months ended March 31, 2023 as a result of performance obligations having not been fully satisfied yet.[2]Electricity segment assets include goodwill in the amount of $85.8 million and $86.0 million as of March 31, 2023 and 2022, respectively. Energy Storage segment assets include goodwill in the amount of $4.6 million and $4.6 as of March 31, 2023 and 2022, respectively. No goodwill is included in the Product segment assets as of March 31, 2023 and 2022.[3]Including unconsolidated investments

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Trade, allowance for credit losses	$ 90	$ 90
Property, plant and equipment, net	2,836,003	2,493,457
Construction-in-process	714,850	893,198
Operating leases right of use	23,223	23,411
Finance leases right of use	$ 4,365	$ 3,806
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	60,260,334	56,095,918
Common stock, shares outstanding (in shares)	60,260,334	56,095,918
Treasury stock, shares (in shares)	258,667	258,667
Senior Secured Notes [Member]
Deferred financing costs	$ 8,483	$ 10,272
Senior Unsecured Bonds [Member]
Deferred financing costs	3,300	2,995
Convertible Senior Notes [Member]
Deferred financing costs	9,293	10,445
Variable Interest Entity, Primary Beneficiary [Member]
Property, plant and equipment, net	2,652,845	2,326,491
Construction-in-process	272,196	360,508
Operating leases right of use	9,537	9,662
Finance leases right of use	$ 29	$ 75

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues:
Revenue	$ 194,796	$ 169,078	$ 380,028	$ 352,788
Cost of revenues:
Cost of revenues	145,306	111,477	254,469	225,282
Gross profit	49,490	57,601	125,559	127,506
Operating expenses:
Research and development expenses	2,083	1,388	3,371	2,452
Selling and marketing expenses	5,369	3,952	9,317	8,317
General and administrative expenses	17,814	13,526	35,481	31,098
Write-off of Energy Storage projects and assets	0	128	0	1,954
Operating income	24,224	38,607	77,390	83,685
Other income (expense):
Interest income	4,942	179	6,793	521
Interest expense, net	(24,393)	(20,418)	(48,024)	(41,499)
Derivatives and foreign currency transaction gains (losses)	(1,272)	(3,998)	(3,209)	(3,738)
Income attributable to sale of tax benefits	14,979	9,527	27,545	17,232
Other non-operating income (expense), net	79	(1,260)	139	(1,185)
Income from operations before income tax and equity in earnings of investees	18,559	22,637	60,634	55,016
Income tax (provision) benefit	3,956	(6,130)	(4,929)	(16,293)
Equity in losses (earnings) of investees	1,996	(1,562)	2,267	(985)
Net income	24,511	14,945	57,972	37,738
Net income attributable to noncontrolling interest	(320)	(3,685)	(4,752)	(8,048)
Net income attributable to the Company's stockholders	24,191	11,260	53,220	29,690
Comprehensive income:
Net income	24,511	14,945	57,972	37,738
Other comprehensive income (loss), net of related taxes:
Change in foreign currency translation adjustments	393	(3,459)	(303)	(4,615)
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of unconsolidated investment that qualifies as a cash flow hedge	1,404	1,543	390	5,445
Change in unrealized gains or losses in respect of a cross currency swap derivative instrument that qualifies as a cash flow hedge	2,477	(2,095)	(2,926)	(4,000)
Change in unrealized gains or losses on marketable securities available-for-sale (net of related tax)	0	142	0	41
Other changes in comprehensive income	14	15	28	30
Total other comprehensive income (loss), net of related taxes:	4,288	(3,854)	(2,811)	(3,099)
Comprehensive income	28,799	11,091	55,161	34,639
Comprehensive income attributable to noncontrolling interest	(569)	(2,842)	(4,611)	(6,906)
Comprehensive income attributable to the Company's stockholders	$ 28,230	$ 8,249	$ 50,550	$ 27,733
Earnings per share attributable to the Company's stockholders:
Basic: (in dollars per share)	$ 0.40	$ 0.20	$ 0.91	$ 0.53
Diluted: (in dollars per share)	$ 0.40	$ 0.20	$ 0.90	$ 0.53
Weighted average number of shares used in computation of earnings per share attributable to the Company's stockholders:
Basic (in shares)	60,245	56,114	58,494	56,089
Diluted (in shares)	60,634	56,498	58,901	56,431
Electricity [Member]
Revenues:
Revenue	$ 155,324	$ 151,195	$ 325,634	$ 313,720
Cost of revenues:
Cost of revenues	109,424	95,517	204,182	190,038
Product [Member]
Revenues:
Revenue	33,458	10,392	43,500	25,020
Cost of revenues:
Cost of revenues	29,985	10,367	39,336	23,980
Energy Storage and Management Services [Member]
Revenues:
Revenue	6,014	7,491	10,894	14,048
Cost of revenues:
Cost of revenues	$ 5,897	$ 5,593	$ 10,951	$ 11,264

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands		Cross Currency Interest Rate Contract [Member] Common Stock [Member]	Cross Currency Interest Rate Contract [Member] Additional Paid-in Capital [Member]	Cross Currency Interest Rate Contract [Member] Treasury Stock, Common [Member]	Cross Currency Interest Rate Contract [Member] Retained Earnings [Member]	Cross Currency Interest Rate Contract [Member] AOCI Attributable to Parent [Member]	Cross Currency Interest Rate Contract [Member] Parent [Member]	Cross Currency Interest Rate Contract [Member] Noncontrolling Interest [Member]	Cross Currency Interest Rate Contract [Member]	Common Stock Outstanding [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock, Common [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2021										56,056
Balance at Dec. 31, 2021											$ 56	$ 1,271,925	$ 0	$ 585,209	$ (2,191)	$ 1,854,999	$ 143,462	$ 1,998,461
Stock-based compensation											0	2,814	0	0	0	2,814	0	2,814
Exercise of stock-based awards by employees and directors (*) (in shares)	[1]									16
Exercise of stock-based awards by employees and directors (*)	[1]										0	99	0	0	0	99	0	99
Cash paid to noncontrolling interest											0	0	0	0	0	0	(3,088)	(3,088)
Cash dividend declared											0	0	0	(6,727)	0	(6,727)	0	(6,727)
Net income											0	0	0	18,430	0	18,430	4,105	22,535
Change in foreign currency translation adjustments											0	0	0	0	(857)	(857)	(299)	(1,156)
Change in unrealized gains or losses in respect of the Company's share in derivative instruments of unconsolidated investment that qualifies as a cash flow hedge											0	0	0	0	3,902	3,902	0	3,902
Change in respect of derivative instruments designated for cash flow hedge		$ 0	$ 0	$ 0	$ 0	$ (1,905)	$ (1,905)	$ 0	$ (1,905)
Other											0	0	0	0	15	15	0	15
Change in unrealized gains or losses on marketable securities available-for-sale (net of related tax)											0	0	0	0	(101)	(101)	0	(101)
Net income											0	0	0	18,430	0	18,430	4,105	22,535
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of unconsolidated investment that qualifies as a cash flow hedge											0	0	0	0	3,902	3,902	0	3,902
Change in unrealized gains or losses in respect of a cross currency swap derivative instrument that qualifies as a cash flow hedge		0	0	0	0	(1,905)	(1,905)	0	(1,905)
Currency translation adjustment											0	0	0	0	(857)	(857)	(299)	(1,156)
Balance (in shares) at Mar. 31, 2022										56,072
Balance at Mar. 31, 2022											56	1,274,838	0	596,912	(1,137)	1,870,669	144,180	2,014,849
Balance (in shares) at Dec. 31, 2021										56,056
Balance at Dec. 31, 2021											56	1,271,925	0	585,209	(2,191)	1,854,999	143,462	1,998,461
Change in foreign currency translation adjustments																		(4,615)
Change in unrealized gains or losses in respect of the Company's share in derivative instruments of unconsolidated investment that qualifies as a cash flow hedge																		5,445
Change in respect of derivative instruments designated for cash flow hedge																		(4,000)
Other																		30
Change in unrealized gains or losses on marketable securities available-for-sale (net of related tax)																		41
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of unconsolidated investment that qualifies as a cash flow hedge																		5,445
Change in unrealized gains or losses in respect of a cross currency swap derivative instrument that qualifies as a cash flow hedge																		(4,000)
Currency translation adjustment																		(4,615)
Balance (in shares) at Jun. 30, 2022										55,934
Balance at Jun. 30, 2022											56	1,253,242	(17,964)	601,441	(4,148)	1,832,627	146,667	1,979,294
Balance (in shares) at Mar. 31, 2022										56,072
Balance at Mar. 31, 2022											56	1,274,838	0	596,912	(1,137)	1,870,669	144,180	2,014,849
Stock-based compensation											0	2,999	0	0	0	2,999	0	2,999
Exercise of stock-based awards by employees and directors (*)											0	(57)	0	0	0	(57)	0	(57)
Cash paid to noncontrolling interest											0	0	0	0	0	0	(140)	(140)
Cash dividend declared											0	0	0	(6,731)	0	(6,731)	0	(6,731)
Net income											0	0	0	11,260	0	11,260	3,470	14,730
Change in foreign currency translation adjustments											0	0	0	0	(2,616)	(2,616)	(843)	(3,459)
Change in unrealized gains or losses in respect of the Company's share in derivative instruments of unconsolidated investment that qualifies as a cash flow hedge											0	0	0	0	1,543	1,543	0	1,543
Change in respect of derivative instruments designated for cash flow hedge		0	0	0	0	(2,095)	(2,095)	0	(2,095)									(2,095)
Other											0	0	0	0	15	15	0	15
Change in unrealized gains or losses on marketable securities available-for-sale (net of related tax)											0	0	0	0	142	142	0	142
Purchase of treasury stock (in shares)										(259)
Purchase of treasury stock											0	0	(17,964)	0	0	(17,964)	0	(17,964)
Purchase of capped call instruments											0	(24,538)	0	0	0	(24,538)	0	(24,538)
Net income											0	0	0	11,260	0	11,260	3,470	14,730
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of unconsolidated investment that qualifies as a cash flow hedge											0	0	0	0	1,543	1,543	0	1,543
Change in unrealized gains or losses in respect of a cross currency swap derivative instrument that qualifies as a cash flow hedge		$ 0	$ 0	$ 0	$ 0	$ (2,095)	$ (2,095)	$ 0	$ (2,095)									(2,095)
Currency translation adjustment											0	0	0	0	(2,616)	(2,616)	(843)	(3,459)
Balance (in shares) at Jun. 30, 2022										55,934
Balance at Jun. 30, 2022											56	1,253,242	(17,964)	601,441	(4,148)	1,832,627	146,667	1,979,294
Balance (in shares) at Dec. 31, 2022										56,096
Balance at Dec. 31, 2022											56	1,259,072	(17,964)	623,907	2,500	1,867,571	153,404	2,020,975
Stock-based compensation											0	2,990	0	0	0	2,990	0	2,990
Exercise of stock-based awards by employees and directors (*)											0	27	0	0	0	27	0	27
Cash paid to noncontrolling interest											0	0	0	0	0	0	(2,360)	(2,360)
Cash dividend declared											0	0	0	(6,732)	0	(6,732)	0	(6,732)
Net income											0	0	0	29,029	0	29,029	4,235	33,264
Change in foreign currency translation adjustments											0	0	0	0	(306)	(306)	(390)	(696)
Change in unrealized gains or losses in respect of the Company's share in derivative instruments of unconsolidated investment that qualifies as a cash flow hedge											0	0	0	0	(1,014)	(1,014)	0	(1,014)
Change in respect of derivative instruments designated for cash flow hedge											0	0	0	0	(5,403)	(5,403)	0	(5,403)
Other											0	0	0	0	14	14	0	14
Issuance of common stock (in shares)										3,600
Issuance of common stock											4	297,117	0	0	0	297,121	0	297,121
Change in noncontrolling interest rights											0	1,239	0	0	0	1,239	(2,396)	(1,157)
Net income											0	0	0	29,029	0	29,029	4,235	33,264
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of unconsolidated investment that qualifies as a cash flow hedge											0	0	0	0	(1,014)	(1,014)	0	(1,014)
Change in unrealized gains or losses in respect of a cross currency swap derivative instrument that qualifies as a cash flow hedge											0	0	0	0	(5,403)	(5,403)	0	(5,403)
Currency translation adjustment											0	0	0	0	(306)	(306)	(390)	(696)
Balance (in shares) at Mar. 31, 2023										59,696
Balance at Mar. 31, 2023											60	1,560,445	(17,964)	646,204	(4,209)	2,184,536	152,493	2,337,029
Balance (in shares) at Dec. 31, 2022										56,096
Balance at Dec. 31, 2022											56	1,259,072	(17,964)	623,907	2,500	1,867,571	153,404	2,020,975
Change in foreign currency translation adjustments																		(303)
Change in unrealized gains or losses in respect of the Company's share in derivative instruments of unconsolidated investment that qualifies as a cash flow hedge																		390
Change in respect of derivative instruments designated for cash flow hedge																		(2,926)
Other																		28
Change in unrealized gains or losses on marketable securities available-for-sale (net of related tax)																		0
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of unconsolidated investment that qualifies as a cash flow hedge																		390
Change in unrealized gains or losses in respect of a cross currency swap derivative instrument that qualifies as a cash flow hedge																		(2,926)
Currency translation adjustment																		(303)
Balance (in shares) at Jun. 30, 2023										60,236
Balance at Jun. 30, 2023											60	1,609,298	(17,964)	663,166	(170)	2,254,390	152,652	2,407,042
Balance (in shares) at Mar. 31, 2023										59,696
Balance at Mar. 31, 2023											60	1,560,445	(17,964)	646,204	(4,209)	2,184,536	152,493	2,337,029
Stock-based compensation											0	4,311	0	0	0	4,311	0	4,311
Cash paid to noncontrolling interest											0	0	0	0	0	0	(135)	(135)
Cash dividend declared											0	0	0	(7,229)	0	(7,229)	0	(7,229)
Net income											0	0	0	24,191	0	24,191	45	24,236
Change in foreign currency translation adjustments											0	0	0	0	144	144	249	393
Change in unrealized gains or losses in respect of the Company's share in derivative instruments of unconsolidated investment that qualifies as a cash flow hedge											0	0	0	0	1,404	1,404	0	1,404
Change in respect of derivative instruments designated for cash flow hedge											0	0	0	0	2,477	2,477	0	2,477
Other											0	0	0	0	14	14	0	14
Change in unrealized gains or losses on marketable securities available-for-sale (net of related tax)																		0
Issuance of common stock (in shares)										540
Issuance of common stock											0	44,542	0	0	0	44,542	0	44,542
Net income											0	0	0	24,191	0	24,191	45	24,236
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of unconsolidated investment that qualifies as a cash flow hedge											0	0	0	0	1,404	1,404	0	1,404
Change in unrealized gains or losses in respect of a cross currency swap derivative instrument that qualifies as a cash flow hedge											0	0	0	0	2,477	2,477	0	2,477
Currency translation adjustment											0	0	0	0	144	144	249	393
Balance (in shares) at Jun. 30, 2023										60,236
Balance at Jun. 30, 2023											$ 60	$ 1,609,298	$ (17,964)	$ 663,166	$ (170)	$ 2,254,390	$ 152,652	$ 2,407,042

[1]Resulted in an amount lower than $1 thousand.

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Equity (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2022	Mar. 31, 2022
Retained Earnings [Member]
Cash dividend declared, per share (in dollars per share)	$ 0.12	$ 0.12
Change in unrealized gains or losses on marketable securities available-for-sale, tax	$ 0	$ 0
Change in respect of derivative instruments designated for cash flow hedge, tax	$ 0

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flow (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net income	$ 57,972	$ 37,738
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	107,417	97,005
Accretion of asset retirement obligation	3,083	2,591
Stock-based compensation	7,301	5,813
Income attributable to sale of tax benefits, net of interest expense	(16,432)	(11,052)
Equity in losses (earnings) of investees	(2,267)	985
Mark-to-market of derivative instruments	591	3,911
Disposal of property, plant and equipment	23	2
Write-off of Energy Storage projects and assets	0	1,954
Loss (gain) on severance pay fund asset	296	978
Loss from prepayment of a long-term loan	0	1,102
Deferred income tax provision	(13,933)	1,584
Liability for unrecognized tax benefits	125	514
Other	0	576
Changes in operating assets and liabilities, net of businesses acquired:
Receivables	(29,603)	(646)
Costs and estimated earnings in excess of billings on uncompleted contracts	(5,381)	(4,131)
Inventories	(15,068)	(3,768)
Prepaid expenses and other	(4,271)	(6,424)
Change in operating lease right of use asset	1,440	1,586
Deposits and other	(5,156)	1,583
Accounts payable and accrued expenses	25,020	(15,128)
Billings in excess of costs and estimated earnings on uncompleted contracts	9,866	3,459
Liabilities for severance pay	(750)	(1,406)
Change in operating lease liabilities	(922)	(1,559)
Other long-term liabilities	11,154	(1,977)
Net cash provided by operating activities	130,505	115,290
Cash flows from investing activities:
Purchase of marketable securities	0	(19,192)
Maturities of marketable securities	0	32,645
Sale of marketable securities	0	29,355
Capital expenditures	(266,713)	(263,439)
Investment in unconsolidated companies	(8,101)	(4,353)
Decrease (increase) in severance pay fund asset, net of payments made to retired employees	(128)	(52)
Net cash used in investing activities	(274,942)	(225,036)
Cash flows from financing activities:
Proceeds from long-term loans, net of transaction costs	99,850	75,000
Proceeds from exercise of options by employees	27	42
Proceeds from issuance of convertible notes, net of transaction costs	0	420,400
Purchase of capped call instruments	0	(24,538)
Purchase of treasury stock	0	(17,964)
Prepayments of a long-term loan	0	(219,126)
Cash received from noncontrolling interest	7,341	5,443
Repayments of long-term debt	(115,182)	(96,875)
Proceeds from issuance of common stock, net of related costs	341,663	0
Cash paid to noncontrolling interest	(3,584)	(3,863)
Payments under finance lease obligations	(955)	(1,677)
Deferred debt issuance costs	(2,112)	(374)
Cash dividends paid	(13,961)	(13,458)
Net cash provided by financing activities	313,087	123,010
Effect of exchange rate changes	56	(327)
Net change in cash and cash equivalents and restricted cash and cash equivalents	168,706	12,937
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	226,676	343,444
Cash and cash equivalents and restricted cash and cash equivalents at end of period	395,382	356,381
Supplemental non-cash investing and financing activities:
Change in accounts payable related to purchases of property, plant and equipment	(15,253)	10,982
Right of use assets obtained in exchange for new lease liabilities	$ 3,196	$ 2,313

Note 1 - General and Basis of P

Note 1 - General and Basis of Presentation	6 Months Ended
Note 1 - General and Basis of Presentation	Jun. 30, 2023
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	NOTE 1 GENERAL AND BASIS OF PRESENTATION These unaudited condensed consolidated interim financial statements of Ormat Technologies, Inc. and its subsidiaries (collectively, the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial statements. Accordingly, they do not June 30, 2023, three six June 30, 2023 2022 six June 30, 2023 2022. The financial data and other information disclosed in the notes to the condensed consolidated financial statements related to these periods are unaudited. The results for the periods presented are not These condensed unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10 December 31, 2022. December 31, 2022 December 31, 2022 not Dollar amounts, except per share data, in the notes to these financial statements are rounded to the closest $1,000. Hapoalim Bank Loan On February 27, 2023, 2023” August 27, 2023. not not not June 30, 2023, Equity offering On March 14, 2023, 30 April 3, 2023. Plumstriker Loan On April 4, 2023, Write-offs of unsuccessful exploration activities During the three six June 30, 2023 2022, no Reconciliation of cash and cash equivalents and restricted cash and cash equivalents The following table provides a reconciliation of cash and cash equivalents and restricted cash and cash equivalents as reported on the balance sheet to the total of the same amounts shown on the statement of cash flows: June 30, December 31, 2023 2022 (Dollars in thousands) Cash and cash equivalents $ 275,066 $ 95,872 Restricted cash and cash equivalents 120,316 130,804 Total Cash and cash equivalents and restricted cash and cash equivalents $ 395,382 $ 226,676 Concentration of credit risk Financial instruments that potentially subject the Company to a concentration of credit risk consist principally of cash investments and accounts receivable. The Company places its cash investments with high credit quality financial institutions located in the United States (“U.S.”) and in foreign countries. At June 30, 2023 December 31, 2022, ten $250,000 June 30, 2023 December 31, 2022, At June 30, 2023 December 31, 2022, June 30, 2023 December 31, 2022, 10% 10% June 30, 2023 December 31, 2022 The Company's revenues from its primary customers as a percentage of total revenues are as follows: Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Southern California Public Power Authority (“SCPPA”) 21.0 % 21.3 % 23.8 % 21.6 % Sierra Pacific Power Company and Nevada Power Company 15.9 18.1 17.9 18.6 Kenya Power and Lighting Co. Ltd. ("KPLC") 14.4 15.5 14.4 14.8 The Company has historically been able to collect on substantially all of its receivable balances. As of June 30, 2023, July 2023. In Honduras, as of June 30, 2023, July 2023. may Allowance for credit losses The Company performs an analysis of potential credit losses related to its financial instruments that are within the scope of ASU 2018 19, 325, may The following table describes the changes in the allowance for expected credit losses for the three six June 30, 2023 2022 Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 (Dollars in thousands) (Dollars in thousands) Beginning balance of the allowance for expected credit losses $ 90 $ 90 $ 90 $ 90 Change in the provision for expected credit losses for the period — — — — Ending balance of the allowance for expected credit losses $ 90 $ 90 $ 90 $ 90 Revenues from contracts with customers Contract assets related to our Product segment reflect revenue recognized and performance obligations satisfied in advance of customer billing. Contract liabilities related to the Company's Product segment reflect payments received in advance of the satisfaction of performance under the contract. The Company receives payments from customers based on the terms established in the contracts. Total contract assets and contract liabilities as of June 30, 2023 December 31, 2022 June 30, December 31, 2023 2022 (Dollars in thousands) Contract assets () $ 21,786 $ 16,405 Contract liabilities () $ (18,651 ) $ (8,785 ) (*) Contract assets and contract liabilities are presented as "Costs and estimated earnings in excess of billings on uncompleted contracts" and "Billings in excess of costs and estimated earnings on uncompleted contracts", respectively, on the condensed consolidated balance sheets. The contract liabilities balance at the beginning of the year was not six June 30, 2023 not On June 30, 2023, not Disaggregated revenues from contracts with customers for the three six June 30, 2023 2022 8 Leases in which the Company is a lessor The table below presents lease income recognized as a lessor: Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 (Dollars in thousands) (Dollars in thousands) Lease income relating to lease payments from operating leases $ 125,140 $ 127,472 $ 262,761 $ 267,153 Marketable securities The Company’s investments in marketable securities consisted of debt securities with maturity of up to one three Derivative instruments Derivative instruments (including certain derivative instruments embedded in other contracts) are measured at their fair value and recorded as either assets or liabilities unless exempted from derivative treatment as a normal purchase and sale. Changes in the fair value of derivatives not The Company maintains a risk management strategy that may Transferable production and investment tax credits The Inflation Reduction Act (“IRA”) was signed into law in August 2022 third December 31, 2022. not third 740 three six June 30, 2023

Note 2 - New Accounting Pronoun

Note 2 - New Accounting Pronouncements	6 Months Ended
Note 2 - New Accounting Pronouncements	Jun. 30, 2023
Notes to Financial Statements
Accounting Standards Update and Change in Accounting Principle [Text Block]	NOTE 2 NEW ACCOUNTING PRONOUNCEMENTS New accounting pronouncements effective in the six June 30, 2023 Revenue Contracts Acquired in a Business Combination In October 2021, 2021 08, 805 2021 08" 2021 08 1 2 2021 08 606 2021 08 December 15, 2022 not New accounting pronouncements effective in future periods Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method In March 2023, 2023 02 323 2023 02 December 15, 2023, 2023 02 not

Note 3 - Inventories

Note 3 - Inventories	6 Months Ended
Note 3 - Inventories	Jun. 30, 2023
Notes to Financial Statements
Inventory Disclosure [Text Block]	NOTE 3 INVENTORIES Inventories consist of the following: June 30, December 31, 2023 2022 (Dollars in thousands) Raw materials and purchased parts for assembly $ 22,104 $ 10,629 Self-manufactured assembly parts and finished products 15,796 12,203 Total inventories $ 37,900 $ 22,832

Note 4 - Fair Value of Financia

Note 4 - Fair Value of Financial Instruments	6 Months Ended
Note 4 - Fair Value of Financial Instruments	Jun. 30, 2023
Notes to Financial Statements
Fair Value Disclosures [Text Block]	NOTE 4 FAIR VALUE OF FINANCIAL INSTRUMENTS The fair value measurement guidance clarifies that fair value is an exit price, representing the amount that would be received upon selling an asset or paid upon transferring a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. The guidance establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 3 three Level 1 Level 2 not Level 3 no The following table sets forth certain fair value information at June 30, 2023 December 31, 2022 June 30, 2023 Fair Value Carrying Value at June 30, 2023 Total Level 1 Level 2 Level 3 (Dollars in thousands) Assets: Current assets: Cash equivalents (including restricted cash accounts) $ 41,237 $ 41,237 $ 41,237 $ — $ — Marketable securities (3) 139 139 139 — — Long-term Assets: Cross currency swap (2) 9 9 — 9 — Liabilities: Current liabilities: Derivatives: Cross currency swap (2) (4,189 ) (4,189 ) — (4,189 ) — Currency forward contracts (1) (1,391 ) (1,391 ) — (1,391 ) — Long term liabilities: Cross currency swap (2) (9,208 ) (9,208 ) — (9,208 ) — $ 26,597 $ 26,597 $ 41,376 $ (14,779 ) $ — December 31, 2022 Fair Value Carrying Value at December 31, 2022 Total Level 1 Level 2 Level 3 (Dollars in thousands) Assets Current assets: Cash equivalents (including restricted cash accounts) $ 34,832 $ 34,832 $ 34,832 $ — $ — Marketable securities (3) 136 136 136 — — Derivatives: Long-term assets: Cross currency swap (2) 3,029 3,029 — 3,029 — Liabilities: Current liabilities: Derivatives: Currency forward contracts (1) (800 ) (800 ) — (800 ) — Cross currency swap (2) (2,777 ) (2,777 ) — (2,777 ) — $ 34,420 $ 34,420 $ 34,968 $ (548 ) $ — 1. These amounts relate to currency forward contracts valued primarily based on observable inputs, including forward and spot prices for currencies, net of contracted rates and then multiplied by notional amounts, and are included within “Receivables, other” or “Accounts payable and accrued expenses”, as applicable, in the condensed consolidated balance sheets on June 30, 2023 December 31, 2022, 2. These amounts relate to cross currency swap contracts valued primarily based on the present value of the cross currency swap future settlement prices for U.S. Dollar (“USD”) and New Israeli Shekel (“NIS”) zero June 30, 2023 December 31, 2022, June 30, 2023 December 31, 2022. June 30, 2023 December 31, 2022. 3. Presented under “Cash and cash equivalents” in the condensed consolidated balance sheets. The following table presents the amounts of gain (loss) recognized in the consolidated statements of operations and comprehensive income on derivative instruments (in thousands): Amount of recognized gain (loss) Amount of recognized gain (loss) Derivatives not designated as hedging instruments Location of recognized gain (loss) Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 (Dollars in thousands) (Dollars in thousands) Currency forward contracts (1) Derivative and foreign currency transaction gains (losses) $ (1,071 ) $ (4,498 ) $ (2,727 ) $ (4,706 ) Derivatives designated as cash flow hedging instruments Cross currency swap (2) Derivative and foreign currency transaction gains (losses) $ (3,761 ) $ (28,733 ) $ (10,553 ) $ (35,415 ) ( 1 not ( 2 1 There were no 1, 2 3 six June 30, 2023 2022. The following table presents the effect of derivative instruments designated as cash flow hedges on the condensed consolidated statements of operations and comprehensive income (loss) for the three six June 30, 2023 2022: Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 (Dollars in thousands) (Dollars in thousands) Cross currency swap cash flow hedge: Balance in Accumulated other comprehensive income (loss) beginning of period $ (1,483 ) $ 3,840 $ 3,920 $ 5,745 Gain or (loss) recognized in Other comprehensive income (loss) 6,238 (30,828 ) 7,627 (39,415 ) Amount reclassified from Other comprehensive income (loss) into earnings (3,761 ) 28,733 (10,553 ) 35,415 Balance in Accumulated other comprehensive income (loss) end of period $ 994 $ 1,745 $ 994 $ 1,745 The estimated net amount of existing gain (loss) that is reported in "Accumulated other comprehensive income (loss)" as of June 30, 2023 12 June 2031. The fair value of the Company’s long-term debt approximates its carrying amount, except for the following: Fair Value Carrying Amount () June 30, 2023 December 31, 2022 June 30, 2023 December 31, 2022 (Dollars in millions) (Dollars in millions) Mizrahi Loan $ 66.1 $ 71.4 $ 65.6 $ 70.3 Convertible Senior Notes 467.6 505.3 431.3 431.3 HSBC Loan 36.9 40.3 39.3 42.9 Hapoalim Loan 82.7 91.1 89.3 98.2 Hapoalim Loan 2023 104.8 — 100.0 — Discount Loan 75.2 81.1 81.3 87.5 Finance liability - Dixie Valley 215.2 219.8 236.1 242.0 Olkaria III Loan - DFC 124.8 134.2 129.7 138.7 Olkaria III plant 4 Loan - DEG 2 23.9 26.5 25.0 27.5 Olkaria III plant 1 Loan - DEG 3 21.1 23.3 21.8 24.0 Platanares Loan - DFC 75.5 80.2 75.8 79.9 Amatitlan Loan 14.1 14.7 14.0 15.8 OFC 2 LLC ("OFC 2") 140.6 149.8 149.3 158.0 Don A. Campbell 1 ("DAC 1") 54.2 57.4 59.6 62.7 USG Prudential - NV 23.3 23.7 24.6 25.0 USG Prudential - ID 55.4 56.8 59.8 61.6 USG DOE 31.3 32.8 31.5 32.8 Senior Unsecured Bonds 196.8 235.1 216.2 255.8 Senior Unsecured Loan 157.6 166.4 166.4 174.8 Plumstriker — 11.2 — 11.4 Other long-term debt 8.0 9.2 8.6 10.4 () The fair value of the long-term debt is determined by a valuation model, which is based on a conventional discounted cash flow methodology and utilizes assumptions of current borrowing rates, except for the fair value of the Convertible Senior Notes for which the fair value was estimated based on a quoted bid price of the Notes in an over-the-counter market on the last trading day of the reporting period. A hypothetical change in the quoted bid price will result in a corresponding change in the estimated fair value of the Notes. The carrying value of cash and cash equivalents, receivables, deposits and accounts payable (included in the condensed consolidated balance sheets) approximates their fair value. The following table presents the fair value of financial instruments as of June 30, 2023: Level 1 Level 2 Level 3 Total (Dollars in millions) Mizrahi Loan $ — $ — $ 66.1 $ 66.1 Convertible Senior Notes — 467.6 — 467.6 HSBC Loan — — 36.9 36.9 Hapoalim Loan — — 82.7 82.7 Hapoalim Loan 2023 — — 104.8 104.8 Discount Loan — — 75.2 75.2 Finance liability - Dixie Valley — — 215.2 215.2 Olkaria III Loan - DFC — — 124.8 124.8 Olkaria III plant 4 Loan - DEG 2 — — 23.9 23.9 Olkaria III plant 1 Loan - DEG 3 — — 21.1 21.1 Platanares Loan - DFC — — 75.5 75.5 Amatitlan Loan — 14.1 — 14.1 OFC 2 Senior Secured Notes — — 140.6 140.6 DAC 1 Senior Secured Notes — — 54.2 54.2 USG Prudential - NV — — 23.3 23.3 USG Prudential - ID — — 55.4 55.4 USG DOE — — 31.3 31.3 Senior Unsecured Bonds — — 196.8 196.8 Senior Unsecured Loan — — 157.6 157.6 Other long-term debt — — 8.0 8.0 Deposits 19.2 — — 19.2 The following table presents the fair value of financial instruments as of December 31, 2022: Level 1 Level 2 Level 3 Total (Dollars in millions) Mizrahi Loan $ — $ — $ 71.4 $ 71.4 Convertible Senior Notes — 505.3 — 505.3 HSBC Loan — — 40.3 40.3 Hapoalim Loan — — 91.1 91.1 Discount Loan — — 81.1 81.1 Financing Liability - Dixie Valley — — 219.8 219.8 Olkaria III Loan - DFC — — 134.2 134.2 Olkaria IV - DEG 2 — — 26.5 26.5 Olkaria IV - DEG 3 — — 23.3 23.3 Platanares Loan - DFC — — 80.2 80.2 Amatitlan Loan — 14.7 — 14.7 OFC 2 Senior Secured Notes — — 149.8 149.8 DAC 1 Senior Secured Notes — — 57.4 57.4 USG Prudential - NV — — 23.7 23.7 USG Prudential - ID — — 56.8 56.8 USG DOE — — 32.8 32.8 Senior Unsecured Bonds — — 235.1 235.1 Senior Unsecured Loan — — 166.4 166.4 Plumstriker — 11.2 — 11.2 Other long-term debt — — 9.2 9.2 Deposits 13.9 — — 13.9

Note 5 - Stock-based Compensati

Note 5 - Stock-based Compensation	6 Months Ended
Note 5 - Stock-based Compensation	Jun. 30, 2023
Notes to Financial Statements
Share-Based Payment Arrangement [Text Block]	NOTE 5 STOCK-BASED COMPENSATION In March 2023, 2018 The fair value of each RSU and PSU on the grant date was $79.9 and $79.6, respectively. The Company calculated the fair value of each RSU and PSU on the grant date using the complex lattice, tree-based option-pricing model based on the following assumptions: Risk-free interest rates 3.86% - 4.68% Expected life (in years) 2 - 5.75 Dividend yield 0.59% Expected volatility (weighted average) 36.0% - 42.2% In May 2023, 2018 1 The fair value of each RSU on the grant date was $82.9. The Company calculated the fair value of each RSU and PSU on the grant date using the complex lattice, tree-based option-pricing model based on the following assumptions: Risk-free interest rates 4.70 % Expected life (in years) 1 Dividend yield 0.56 % Expected volatility (weighted average) 34.8 % There were no six June 30, 2023.

Note 6 - Interest Expense, Net

Note 6 - Interest Expense, Net	6 Months Ended
Note 6 - Interest Expense, Net	Jun. 30, 2023
Notes to Financial Statements
Interest Expense Disclosure [Text Block]	NOTE 6 INTEREST EXPENSE, NET The components of interest expense are as follows: Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 (Dollars in thousands) (Dollars in thousands) Interest related to sale of tax benefits $ 3,610 $ 3,463 $ 6,951 $ 6,894 Interest expense 25,162 22,492 49,781 44,978 Less — amount capitalized (4,378 ) (5,537 ) (8,708 ) (10,373 ) Total interest expense, net $ 24,393 $ 20,418 $ 48,024 $ 41,499

Note 7 - Earnings Per Share

Note 7 - Earnings Per Share	6 Months Ended
Note 7 - Earnings Per Share	Jun. 30, 2023
Notes to Financial Statements
Earnings Per Share [Text Block]	NOTE 7 EARNINGS PER SHARE Basic earnings per share attributable to the Company’s stockholders is computed by dividing net income or loss attributable to the Company’s stockholders by the weighted average number of shares of common stock outstanding for the period. The Company does not The table below shows the reconciliation of the number of shares used in the computation of basic and diluted earnings per share (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Weighted average number of shares used in computation of basic earnings per share: 60,245 56,114 58,494 56,089 Additional shares from the assumed exercise of employee stock awards 389 384 407 342 Weighted average number of shares used in computation of diluted earnings per share 60,634 56,498 58,901 56,431 The number of stock-based awards that could potentially dilute future earnings per share and that were not three June 30, 2023 2022, six June 30, 2023 2022, As per ASU 2020 06, three six June 30, 2023, not not no

Note 8 - Business Segments

Note 8 - Business Segments	6 Months Ended
Note 8 - Business Segments	Jun. 30, 2023
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	NOTE 8 BUSINESS SEGMENTS The Company has three • Under the Electricity segment, the Company builds, owns and operates geothermal, solar PV and recovered energy-based power plants ("REG") in the United States and geothermal power plants in foreign countries, and sell the electricity generated by those power plants. • Under the Product segment, the Company designs, manufactures and sells equipment for geothermal and recovered energy-based electricity generation and provide services relating to the engineering, procurement and construction ("EPC") of geothermal and recovered energy-based power plants. • Under the Energy Storage segment, the Company provides energy storage and related services. Transfer prices between the operating segments are determined based on current market values or cost-plus markup of the seller’s business segment. Summarized financial information concerning the Company’s reportable segments is shown in the following tables, including the Company's disaggregated revenues from contracts with customers: Electricity Product Energy Storage Consolidated (Dollars in thousands) Three Months Ended June 30, 2023: Revenues from external customers: United States (1) $ 106,209 $ 2,253 $ 6,014 $ 114,476 Foreign (2) 49,115 31,205 — 80,320 Net revenue from external customers 155,324 33,458 6,014 194,796 Intersegment revenues (4) — 12,918 — — Operating income (loss) 28,661 (2,297 ) (2,140 ) 24,224 Segment assets at period end (3) () 4,576,437 182,437 251,770 5,010,644 Including unconsolidated investments 126,451 — — 126,451 Three Months Ended June 30, 2022: Revenues from external customers: United States (1) $ 105,193 $ 1,134 $ 7,491 $ 113,818 Foreign (2) 46,002 9,258 — 55,260 Net revenue from external customers 151,195 10,392 7,491 169,078 Intersegment revenues (4) — 22,097 — — Operating income (loss) 40,466 (2,276 ) 417 38,607 Segment assets at period end (3) () 4,222,340 122,221 197,415 4,541,976 Including unconsolidated investments 114,699 — — 114,699 Six Months Ended June 30, 2023: Revenues from external customers: United States (1) $ 228,620 $ 3,694 $ 10,894 $ 243,208 Foreign (2) 97,014 39,806 — 136,820 Net revenue from external customers 325,634 43,500 10,894 380,028 Intersegment revenues (4) — 20,690 — — Operating income (loss) 85,669 (3,802 ) (4,477 ) 77,390 Segment assets at period end (3) 4,576,437 182,437 251,770 5,010,644 * Including unconsolidated investments 126,451 — — 126,451 Six Months Ended June 30, 2022: Revenues from external customers: United States (1) $ 221,302 $ 1,669 $ 14,048 $ 237,019 Foreign (2) 92,418 23,351 — 115,769 Net revenue from external customers 313,720 25,020 14,048 352,788 Intersegment revenues (4) — 43,000 — — Operating income (loss) 88,041 (3,851 ) (505 ) 83,685 Segment assets at period end (3) 4,222,340 122,221 197,415 4,541,976 * Including unconsolidated investments 114,699 — — 114,699 ( 1 Electricity segment revenues in the United States are all accounted under lease accounting except for $30.2 million and $62.9 million for the three six June 30, 2023, three six June 30, 2022, 606. 606. ( 2 Electricity segment revenues in foreign countries are all accounted under lease accounting. Product segment revenues in foreign countries are accounted under ASC 606. ( 3 Electricity segment assets include goodwill in the amount of $85.8 million and $85.6 million as of June 30, 2023 2022, June 30, 2023 2022, June 30, 2023 2022. ( 4 Intersegment revenues are fully eliminated in consolidation. Reconciling information between reportable segments and the Company’s consolidated totals is shown in the following table: Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 (Dollars in thousands) (Dollars in thousands) Revenues: Total segment revenues $ 194,796 $ 169,078 $ 380,028 $ 352,788 Intersegment revenues 12,918 22,097 20,690 43,000 Elimination of intersegment revenues (12,918 ) (22,097 ) (20,690 ) (43,000 ) Total consolidated revenues $ 194,796 $ 169,078 $ 380,028 $ 352,788 Operating income: Operating income $ 24,224 $ 38,607 $ 77,390 $ 83,685 Interest income 4,942 179 6,793 521 Interest expense, net (24,393 ) (20,418 ) (48,024 ) (41,499 ) Derivatives and foreign currency transaction gains (losses) (1,272 ) (3,998 ) (3,209 ) (3,738 ) Income attributable to sale of tax benefits 14,979 9,527 27,545 17,232 Other non-operating income (expense), net 79 (1,260 ) 139 (1,185 ) Total consolidated income before income taxes and equity in income of investees $ 18,559 $ 22,637 $ 60,634 $ 55,016

Note 9 - Commitments and Contin

Note 9 - Commitments and Contingencies	6 Months Ended
Note 9 - Commitments and Contingencies	Jun. 30, 2023
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	NOTE 9 COMMITMENTS AND CONTINGENCIES • On December 15, 2021, No January 4, 2022. January 14, 2022, 90 June 15, 2022, February 2022. August 1, 2022 90 not April 4, 2022, 1973 July 6, 2022, 7 first 12 7 February 14, 2023. July 2023, 7 no may June 30, 2023, In addition, from time to time, the Company is named as a party to various other lawsuits, claims and other legal and regulatory proceedings that arise in the ordinary course of the Company's business. These actions typically seek, among other things, compensation for alleged personal injury, breach of contract, property damage, punitive damages, civil penalties or other losses, or injunctive or declaratory relief. With respect to such lawsuits, claims and proceedings, the Company accrues reserves when a loss is probable, and the amount of such loss can be reasonably estimated. It is the opinion of the Company’s management that the outcome of these proceedings, individually and collectively, will not Other matters On March 2, 2021, In Kenya, since 2021,

Note 10 - Income Taxes

Note 10 - Income Taxes	6 Months Ended
Note 10 - Income Taxes	Jun. 30, 2023
Notes to Financial Statements
Income Tax Disclosure [Text Block]	NOTE 10 INCOME TAXES The Company’s effective tax rate provision for the three June 30, 2023 2022 six June 30, 2023 2022 On August 16, 2022, 2.75 3.30 30.0%, 50.0%. December 31, 2022. third On June 26, 2023, 2023 June 30, 2023, 30% July 28, 2023, 14 not June 30, 2023, not third

Note 11 - Subsequent Events

Note 11 - Subsequent Events	6 Months Ended
Note 11 - Subsequent Events	Jun. 30, 2023
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 11 SUBSEQUENT EVENTS Cash Dividend On August 2, 2023, August 16, 2023 August 30, 2023 ORPD Transaction In July 2023, 1, 2, 3 Finance Law in Kenya As described under Note 10 June 26, 2023, 2023 June 30, 2023, July 28, 2023, third

Item 5 - Other Information

Item 5 - Other Information	6 Months Ended
Item 5 - Other Information	Jun. 30, 2023
Notes to Financial Statements
Issuer Rule 10b5-1, Material Terms [Text Block]	5. OTHER INFORMATION (a) None. (b) None (c) On April 2, 2023 10b5 1 1934, “10b5 1 10b5 1 December 31, 2023 10b5 1 November 7, 2023 Except as may not 10b5 1 may

Note 1 - General and Basis of_2

Note 1 - General and Basis of Presentation (Tables)	6 Months Ended
Note 1 - General and Basis of Presentation (Tables)	Jun. 30, 2023
Notes Tables
Schedule of Cash and Cash Equivalents [Table Text Block]	June 30, December 31, 2023 2022 (Dollars in thousands) Cash and cash equivalents $ 275,066 $ 95,872 Restricted cash and cash equivalents 120,316 130,804 Total Cash and cash equivalents and restricted cash and cash equivalents $ 395,382 $ 226,676
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Southern California Public Power Authority (“SCPPA”) 21.0 % 21.3 % 23.8 % 21.6 % Sierra Pacific Power Company and Nevada Power Company 15.9 18.1 17.9 18.6 Kenya Power and Lighting Co. Ltd. ("KPLC") 14.4 15.5 14.4 14.8
Accounts Receivable, Allowance for Credit Loss [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 (Dollars in thousands) (Dollars in thousands) Beginning balance of the allowance for expected credit losses $ 90 $ 90 $ 90 $ 90 Change in the provision for expected credit losses for the period — — — — Ending balance of the allowance for expected credit losses $ 90 $ 90 $ 90 $ 90
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]	June 30, December 31, 2023 2022 (Dollars in thousands) Contract assets () $ 21,786 $ 16,405 Contract liabilities () $ (18,651 ) $ (8,785 )
Operating Lease, Lease Income [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 (Dollars in thousands) (Dollars in thousands) Lease income relating to lease payments from operating leases $ 125,140 $ 127,472 $ 262,761 $ 267,153

Note 3 - Inventories (Tables)

Note 3 - Inventories (Tables)	6 Months Ended
Note 3 - Inventories (Tables)	Jun. 30, 2023
Notes Tables
Schedule of Inventory, Current [Table Text Block]	June 30, December 31, 2023 2022 (Dollars in thousands) Raw materials and purchased parts for assembly $ 22,104 $ 10,629 Self-manufactured assembly parts and finished products 15,796 12,203 Total inventories $ 37,900 $ 22,832

Note 4 - Fair Value of Financ_2

Note 4 - Fair Value of Financial Instruments (Tables)	6 Months Ended
Note 4 - Fair Value of Financial Instruments (Tables)	Jun. 30, 2023
Notes Tables
Fair Value, by Balance Sheet Grouping [Table Text Block]	June 30, 2023 Fair Value Carrying Value at June 30, 2023 Total Level 1 Level 2 Level 3 (Dollars in thousands) Assets: Current assets: Cash equivalents (including restricted cash accounts) $ 41,237 $ 41,237 $ 41,237 $ — $ — Marketable securities (3) 139 139 139 — — Long-term Assets: Cross currency swap (2) 9 9 — 9 — Liabilities: Current liabilities: Derivatives: Cross currency swap (2) (4,189 ) (4,189 ) — (4,189 ) — Currency forward contracts (1) (1,391 ) (1,391 ) — (1,391 ) — Long term liabilities: Cross currency swap (2) (9,208 ) (9,208 ) — (9,208 ) — $ 26,597 $ 26,597 $ 41,376 $ (14,779 ) $ — December 31, 2022 Fair Value Carrying Value at December 31, 2022 Total Level 1 Level 2 Level 3 (Dollars in thousands) Assets Current assets: Cash equivalents (including restricted cash accounts) $ 34,832 $ 34,832 $ 34,832 $ — $ — Marketable securities (3) 136 136 136 — — Derivatives: Long-term assets: Cross currency swap (2) 3,029 3,029 — 3,029 — Liabilities: Current liabilities: Derivatives: Currency forward contracts (1) (800 ) (800 ) — (800 ) — Cross currency swap (2) (2,777 ) (2,777 ) — (2,777 ) — $ 34,420 $ 34,420 $ 34,968 $ (548 ) $ —
Derivative Instruments, Gain (Loss) [Table Text Block]	Amount of recognized gain (loss) Amount of recognized gain (loss) Derivatives not designated as hedging instruments Location of recognized gain (loss) Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 (Dollars in thousands) (Dollars in thousands) Currency forward contracts (1) Derivative and foreign currency transaction gains (losses) $ (1,071 ) $ (4,498 ) $ (2,727 ) $ (4,706 ) Derivatives designated as cash flow hedging instruments Cross currency swap (2) Derivative and foreign currency transaction gains (losses) $ (3,761 ) $ (28,733 ) $ (10,553 ) $ (35,415 )
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 (Dollars in thousands) (Dollars in thousands) Cross currency swap cash flow hedge: Balance in Accumulated other comprehensive income (loss) beginning of period $ (1,483 ) $ 3,840 $ 3,920 $ 5,745 Gain or (loss) recognized in Other comprehensive income (loss) 6,238 (30,828 ) 7,627 (39,415 ) Amount reclassified from Other comprehensive income (loss) into earnings (3,761 ) 28,733 (10,553 ) 35,415 Balance in Accumulated other comprehensive income (loss) end of period $ 994 $ 1,745 $ 994 $ 1,745
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]	Fair Value Carrying Amount (*) June 30, 2023 December 31, 2022 June 30, 2023 December 31, 2022 (Dollars in millions) (Dollars in millions) Mizrahi Loan $ 66.1 $ 71.4 $ 65.6 $ 70.3 Convertible Senior Notes 467.6 505.3 431.3 431.3 HSBC Loan 36.9 40.3 39.3 42.9 Hapoalim Loan 82.7 91.1 89.3 98.2 Hapoalim Loan 2023 104.8 — 100.0 — Discount Loan 75.2 81.1 81.3 87.5 Finance liability - Dixie Valley 215.2 219.8 236.1 242.0 Olkaria III Loan - DFC 124.8 134.2 129.7 138.7 Olkaria III plant 4 Loan - DEG 2 23.9 26.5 25.0 27.5 Olkaria III plant 1 Loan - DEG 3 21.1 23.3 21.8 24.0 Platanares Loan - DFC 75.5 80.2 75.8 79.9 Amatitlan Loan 14.1 14.7 14.0 15.8 OFC 2 LLC ("OFC 2") 140.6 149.8 149.3 158.0 Don A. Campbell 1 ("DAC 1") 54.2 57.4 59.6 62.7 USG Prudential - NV 23.3 23.7 24.6 25.0 USG Prudential - ID 55.4 56.8 59.8 61.6 USG DOE 31.3 32.8 31.5 32.8 Senior Unsecured Bonds 196.8 235.1 216.2 255.8 Senior Unsecured Loan 157.6 166.4 166.4 174.8 Plumstriker — 11.2 — 11.4 Other long-term debt 8.0 9.2 8.6 10.4
Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block]	Level 1 Level 2 Level 3 Total (Dollars in millions) Mizrahi Loan $ — $ — $ 66.1 $ 66.1 Convertible Senior Notes — 467.6 — 467.6 HSBC Loan — — 36.9 36.9 Hapoalim Loan — — 82.7 82.7 Hapoalim Loan 2023 — — 104.8 104.8 Discount Loan — — 75.2 75.2 Finance liability - Dixie Valley — — 215.2 215.2 Olkaria III Loan - DFC — — 124.8 124.8 Olkaria III plant 4 Loan - DEG 2 — — 23.9 23.9 Olkaria III plant 1 Loan - DEG 3 — — 21.1 21.1 Platanares Loan - DFC — — 75.5 75.5 Amatitlan Loan — 14.1 — 14.1 OFC 2 Senior Secured Notes — — 140.6 140.6 DAC 1 Senior Secured Notes — — 54.2 54.2 USG Prudential - NV — — 23.3 23.3 USG Prudential - ID — — 55.4 55.4 USG DOE — — 31.3 31.3 Senior Unsecured Bonds — — 196.8 196.8 Senior Unsecured Loan — — 157.6 157.6 Other long-term debt — — 8.0 8.0 Deposits 19.2 — — 19.2 Level 1 Level 2 Level 3 Total (Dollars in millions) Mizrahi Loan $ — $ — $ 71.4 $ 71.4 Convertible Senior Notes — 505.3 — 505.3 HSBC Loan — — 40.3 40.3 Hapoalim Loan — — 91.1 91.1 Discount Loan — — 81.1 81.1 Financing Liability - Dixie Valley — — 219.8 219.8 Olkaria III Loan - DFC — — 134.2 134.2 Olkaria IV - DEG 2 — — 26.5 26.5 Olkaria IV - DEG 3 — — 23.3 23.3 Platanares Loan - DFC — — 80.2 80.2 Amatitlan Loan — 14.7 — 14.7 OFC 2 Senior Secured Notes — — 149.8 149.8 DAC 1 Senior Secured Notes — — 57.4 57.4 USG Prudential - NV — — 23.7 23.7 USG Prudential - ID — — 56.8 56.8 USG DOE — — 32.8 32.8 Senior Unsecured Bonds — — 235.1 235.1 Senior Unsecured Loan — — 166.4 166.4 Plumstriker — 11.2 — 11.2 Other long-term debt — — 9.2 9.2 Deposits 13.9 — — 13.9

Note 5 - Stock-based Compensa_2

Note 5 - Stock-based Compensation (Tables)	6 Months Ended
Note 5 - Stock-based Compensation (Tables)	Jun. 30, 2023
Notes Tables
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	Risk-free interest rates 3.86% - 4.68% Expected life (in years) 2 - 5.75 Dividend yield 0.59% Expected volatility (weighted average) 36.0% - 42.2% Risk-free interest rates 4.70 % Expected life (in years) 1 Dividend yield 0.56 % Expected volatility (weighted average) 34.8 %

Note 6 - Interest Expense, Net

Note 6 - Interest Expense, Net (Tables)	6 Months Ended
Note 6 - Interest Expense, Net (Tables)	Jun. 30, 2023
Notes Tables
Schedule of Other Nonoperating Expense, by Component [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 (Dollars in thousands) (Dollars in thousands) Interest related to sale of tax benefits $ 3,610 $ 3,463 $ 6,951 $ 6,894 Interest expense 25,162 22,492 49,781 44,978 Less — amount capitalized (4,378 ) (5,537 ) (8,708 ) (10,373 ) Total interest expense, net $ 24,393 $ 20,418 $ 48,024 $ 41,499

Note 7 - Earnings Per Share (Ta

Note 7 - Earnings Per Share (Tables)	6 Months Ended
Note 7 - Earnings Per Share (Tables)	Jun. 30, 2023
Notes Tables
Schedule of Weighted Average Number of Shares [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Weighted average number of shares used in computation of basic earnings per share: 60,245 56,114 58,494 56,089 Additional shares from the assumed exercise of employee stock awards 389 384 407 342 Weighted average number of shares used in computation of diluted earnings per share 60,634 56,498 58,901 56,431

Note 8 - Business Segments (Tab

Note 8 - Business Segments (Tables)	6 Months Ended
Note 8 - Business Segments (Tables)	Jun. 30, 2023
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Electricity Product Energy Storage Consolidated (Dollars in thousands) Three Months Ended June 30, 2023: Revenues from external customers: United States (1) $ 106,209 $ 2,253 $ 6,014 $ 114,476 Foreign (2) 49,115 31,205 — 80,320 Net revenue from external customers 155,324 33,458 6,014 194,796 Intersegment revenues (4) — 12,918 — — Operating income (loss) 28,661 (2,297 ) (2,140 ) 24,224 Segment assets at period end (3) () 4,576,437 182,437 251,770 5,010,644 Including unconsolidated investments 126,451 — — 126,451 Three Months Ended June 30, 2022: Revenues from external customers: United States (1) $ 105,193 $ 1,134 $ 7,491 $ 113,818 Foreign (2) 46,002 9,258 — 55,260 Net revenue from external customers 151,195 10,392 7,491 169,078 Intersegment revenues (4) — 22,097 — — Operating income (loss) 40,466 (2,276 ) 417 38,607 Segment assets at period end (3) () 4,222,340 122,221 197,415 4,541,976 Including unconsolidated investments 114,699 — — 114,699 Six Months Ended June 30, 2023: Revenues from external customers: United States (1) $ 228,620 $ 3,694 $ 10,894 $ 243,208 Foreign (2) 97,014 39,806 — 136,820 Net revenue from external customers 325,634 43,500 10,894 380,028 Intersegment revenues (4) — 20,690 — — Operating income (loss) 85,669 (3,802 ) (4,477 ) 77,390 Segment assets at period end (3) 4,576,437 182,437 251,770 5,010,644 * Including unconsolidated investments 126,451 — — 126,451 Six Months Ended June 30, 2022: Revenues from external customers: United States (1) $ 221,302 $ 1,669 $ 14,048 $ 237,019 Foreign (2) 92,418 23,351 — 115,769 Net revenue from external customers 313,720 25,020 14,048 352,788 Intersegment revenues (4) — 43,000 — — Operating income (loss) 88,041 (3,851 ) (505 ) 83,685 Segment assets at period end (3) 4,222,340 122,221 197,415 4,541,976 * Including unconsolidated investments 114,699 — — 114,699
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 (Dollars in thousands) (Dollars in thousands) Revenues: Total segment revenues $ 194,796 $ 169,078 $ 380,028 $ 352,788 Intersegment revenues 12,918 22,097 20,690 43,000 Elimination of intersegment revenues (12,918 ) (22,097 ) (20,690 ) (43,000 ) Total consolidated revenues $ 194,796 $ 169,078 $ 380,028 $ 352,788 Operating income: Operating income $ 24,224 $ 38,607 $ 77,390 $ 83,685 Interest income 4,942 179 6,793 521 Interest expense, net (24,393 ) (20,418 ) (48,024 ) (41,499 ) Derivatives and foreign currency transaction gains (losses) (1,272 ) (3,998 ) (3,209 ) (3,738 ) Income attributable to sale of tax benefits 14,979 9,527 27,545 17,232 Other non-operating income (expense), net 79 (1,260 ) 139 (1,185 ) Total consolidated income before income taxes and equity in income of investees $ 18,559 $ 22,637 $ 60,634 $ 55,016

Note 1 - General and Basis of_3

Note 1 - General and Basis of Presentation 1 (Details Textual) $ / shares in Units, $ in Thousands				1 Months Ended	3 Months Ended	6 Months Ended		12 Months Ended
	Apr. 23, 2023 USD ($)	Mar. 14, 2023 USD ($) $ / shares shares	Feb. 27, 2023 USD ($)	Jul. 31, 2023 USD ($)	Jun. 30, 2023 USD ($) $ / shares	Jun. 30, 2023 USD ($) $ / shares	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) $ / shares
Common Stock, Par or Stated Value Per Share (in dollars per share) \| $ / shares		$ 0.001			$ 0.001	$ 0.001		$ 0.001
Proceeds from Issuance of Common Stock						$ 341,663	$ 0
Repayments of Long-Term Debt						115,182	96,875
Cash, FDIC Insured Amount					$ 127,000	127,000		$ 10,000
Cash, Uninsured Amount					102,300	102,300		64,300
Accounts Receivable, after Allowance for Credit Loss, Current					148,060	148,060		$ 128,818
Income Related to Transferable Production Tax Credits					2,700		$ 4,500
Kenya Power and Lighting Co Limited [Member]
Accounts Receivable, Past Due					42,700	42,700
Kenya Power and Lighting Co Limited [Member] \| Subsequent Event [Member]
Proceeds, Overdue Accounts Receivable				$ 7,800
ENEE [Member]
Accounts Receivable, Past Due					10,700	$ 10,700
ENEE [Member] \| Subsequent Event [Member]
Proceeds, Overdue Accounts Receivable				$ 2,300
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Primary Customers [Member]
Concentration Risk, Percentage						60%		60%
Total Receivables [Member] \| Customer Concentration Risk [Member]
Financing Receivable, after Allowance for Credit Loss					97,300	$ 97,300		$ 89,800
Non-US [Member]
Accounts Receivable, after Allowance for Credit Loss, Current					$ 106,000	$ 106,000		$ 78,900
Goldman Sachs & Co. LLC [Member]
Proceeds from Issuance of Common Stock		$ 341,700
Public Offering [Member] \| Goldman Sachs & Co. LLC [Member]
Stock Issued During Period, Shares, New Issues (in shares) \| shares		3,600,000
Shares Issued, Price Per Share (in dollars per share) \| $ / shares		$ 82.60
Over-Allotment Option [Member] \| Goldman Sachs & Co. LLC [Member]
Stock Issued During Period, Shares, New Issues (in shares) \| shares		540,000
BHI Loan Agreement [Member]
Debt Instrument, Face Amount			$ 100,000
Debt Instrument, Number of Repayment Installment			20
Debt Instrument, Periodic Payment			$ 5,000
Debt Instrument, Term (Year)			10 years
Debt Instrument, Interest Rate, Stated Percentage			6.45%
Debt Instrument, Covenant, Minimum Equity Capital			$ 750,000
BHI Loan Agreement [Member] \| Maximum [Member]
Debt Instrument, Covenant, Debt to Adjusted EBITDA Ratio			6%
BHI Loan Agreement [Member] \| Minimum [Member]
Debt Instrument, Covenant, Equity Capital to Total Assets Ratio			25%
Plumstriker Loan Agreement [Member]
Repayments of Long-Term Debt	$ 11,100

Note 1 - General and Basis of_4

Note 1 - General and Basis of Presentation 2 (Details Textual) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-07-01 $ in Millions	Jun. 30, 2023 USD ($)
Revenue, Remaining Performance Obligation, Amount	$ 119.6
Product [Member]
Revenue, Remaining Performance Obligation, Percentage	100%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Month)	24 months

Note 1 - General and Basis of_5

Note 1 - General and Basis of Presentation - Cash and Restricted Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Cash and cash equivalents	$ 275,066	$ 95,872
Restricted cash and cash equivalents	120,316	130,804
Total Cash and cash equivalents and restricted cash and cash equivalents	$ 395,382	$ 226,676	$ 356,381	$ 343,444

Note 1 - General and Basis of_6

Note 1 - General and Basis of Presentation - Customers as a Percentage of Total Revenues (Details) - Revenue Benchmark [Member] - Customer Concentration Risk [Member]	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Southern California Public Power Authority [Member]
Percent of revenues	21%	21.30%	23.80%	21.60%
Sierra Pacific Power Company And Nevada Power Company [Member]
Percent of revenues	15.90%	18.10%	17.90%	18.60%
Kenya Power and Lighting Co LTD [Member]
Percent of revenues	14.40%	15.50%	14.40%	14.80%

Note 1 - General and Basis of_7

Note 1 - General and Basis of Presentation - Changes in the Allowance for Expected Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Beginning balance of the allowance for expected credit losses			$ 90
Ending balance of the allowance for expected credit losses	$ 90		90
Accounting Standards Update 2016-13 [Member]
Beginning balance of the allowance for expected credit losses	90	$ 90	90	$ 90
Change in the provision for expected credit losses for the period	0	0	0	0
Ending balance of the allowance for expected credit losses	$ 90	$ 90	$ 90	$ 90

Note 1 - General and Basis of_8

Note 1 - General and Basis of Presentation - Contract Assets (Liabilities) (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Contract assets (*)	[1]	$ 21,786	$ 16,405
Contract liabilities (*)	[1]	$ (18,651)	$ (8,785)

[1]Contract assets and contract liabilities are presented as "Costs and estimated earnings in excess of billings on uncompleted contracts" and "Billings in excess of costs and estimated earnings on uncompleted contracts", respectively, on the condensed consolidated balance sheets. The contract liabilities balance at the beginning of the year was not yet fully recognized as product revenues during the three months ended March 31, 2023 as a result of performance obligations having not been fully satisfied yet.

Note 1 - General and Basis of_9

Note 1 - General and Basis of Presentation - Lease Income as Lessor (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Lease income relating to lease payments from operating leases	$ 125,140	$ 127,472	$ 262,761	$ 267,153

Note 3 - Inventories - Inventor

Note 3 - Inventories - Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Raw materials and purchased parts for assembly	$ 22,104	$ 10,629
Self-manufactured assembly parts and finished products	15,796	12,203
Total inventories	$ 37,900	$ 22,832

Note 4 - Fair Value of Financ_3

Note 4 - Fair Value of Financial Instruments (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Cross Currency Interest Rate Contract [Member] \| Prepaid Expenses and Other and Deposits and Other [Member]
Derivatives, Cash Collateral Deposits	$ 0	$ 0

Note 4 - Fair Value of Financ_4

Note 4 - Fair Value of Financial Instruments - Financial Assets and Liabilities at Fair Value (Details) - USD ($) $ in Thousands		Jun. 30, 2023		Dec. 31, 2022
Reported Value Measurement [Member]
Cash equivalents (including restricted cash accounts)		$ 41,237		$ 34,832
Marketable securities (3)		139	[1]	136
Fair Value, Net Asset (Liability)		26,597		34,420
Reported Value Measurement [Member] \| Cross Currency Interest Rate Contract [Member]
Derivative Asset, noncurrent		9	[2]	(2,777)	[1]
Derivative Liability, Current	[2]	(4,189)
Derivatives, noncurrent	[2]	(9,208)
Derivative Assets, current	[1]			3,029
Reported Value Measurement [Member] \| Currency Forward Contracts [Member]
Derivative Liability, Current	[3]	(1,391)
Derivative Assets, current	[2]			(800)
Estimate of Fair Value Measurement [Member]
Cash equivalents (including restricted cash accounts)		41,237		34,832
Marketable securities (3)		139	[1]	136
Fair Value, Net Asset (Liability)		26,597		34,420
Estimate of Fair Value Measurement [Member] \| Cross Currency Interest Rate Contract [Member]
Derivative Asset, noncurrent		9	[2]	(2,777)	[1]
Derivative Liability, Current	[2]	(4,189)
Derivatives, noncurrent	[2]	(9,208)
Derivative Assets, current	[1]			3,029
Estimate of Fair Value Measurement [Member] \| Currency Forward Contracts [Member]
Derivative Liability, Current	[3]	(1,391)
Derivative Assets, current	[2]			(800)
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member]
Cash equivalents (including restricted cash accounts)		41,237		34,832
Marketable securities (3)		139	[1]	136
Fair Value, Net Asset (Liability)		41,376		34,968
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member] \| Cross Currency Interest Rate Contract [Member]
Derivative Asset, noncurrent		0	[2]	0	[1]
Derivative Liability, Current	[2]	0
Derivatives, noncurrent	[2]	0
Derivative Assets, current	[1]			0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member] \| Currency Forward Contracts [Member]
Derivative Liability, Current	[3]	0
Derivative Assets, current	[2]			0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member]
Cash equivalents (including restricted cash accounts)		0		0
Marketable securities (3)		0	[1]	0
Fair Value, Net Asset (Liability)		(14,779)		(548)
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member] \| Cross Currency Interest Rate Contract [Member]
Derivative Asset, noncurrent		9	[2]	(2,777)	[1]
Derivative Liability, Current	[2]	(4,189)
Derivatives, noncurrent	[2]	(9,208)
Derivative Assets, current	[1]			3,029
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member] \| Currency Forward Contracts [Member]
Derivative Liability, Current	[3]	(1,391)
Derivative Assets, current	[2]			(800)
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member]
Cash equivalents (including restricted cash accounts)		0		0
Marketable securities (3)		0	[1]	0
Fair Value, Net Asset (Liability)		0		0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member] \| Cross Currency Interest Rate Contract [Member]
Derivative Asset, noncurrent		0	[2]	0	[1]
Derivative Liability, Current	[2]	0
Derivatives, noncurrent	[2]	0
Derivative Assets, current	[1]			0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member] \| Currency Forward Contracts [Member]
Derivative Liability, Current	[3]	$ 0
Derivative Assets, current	[2]			$ 0

[1]Presented under “Cash and cash equivalents” in the condensed consolidated balance sheets.[2]These amounts relate to cross currency swap contracts valued primarily based on the present value of the cross currency swap future settlement prices for U.S. Dollar (“USD”) and New Israeli Shekel (“NIS”) zero yield curves and the applicable exchange rate as of March 31, 2023 and December 31, 2022, as applicable. These amounts are included within “Prepaid expenses and other”, “Deposits and other”, "Accounts payable and accrued expenses", or “Other longterm liabilities”, as applicable, in the condensed consolidated balance sheets on March 31, 2023 and December 31, 2022. There are no cash collateral deposits on March 31, 2023 and December 31, 2022.[3]These amounts relate to currency forward contracts valued primarily based on observable inputs, including forward and spot prices for currencies, net of contracted rates and then multiplied by notional amounts, and are included within “Receivables, other” or “Accounts payable and accrued expenses”, as applicable, in the condensed consolidated balance sheets on March 31, 2023 and December 31, 2022, with the corresponding gain or loss being recognized within “Derivatives and foreign currency transaction gains (losses)” in the condensed consolidated statements of operations and comprehensive income.

Note 4 - Fair Value of Financ_5

Note 4 - Fair Value of Financial Instruments - Amounts of Gain (Loss) Recognized in Condensed Consolidated Statements on Derivative Instruments Not Designated as Hedges (Details) - Derivatives and Foreign Currency Transaction Gains (Losses) [Member] - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Currency Forward Contracts [Member]
Amount of gain (loss) recognized	[1]	$ (1,071)	$ (4,498)	$ (2,727)	$ (4,706)
Cross Currency Interest Rate Contract [Member] \| Designated as Hedging Instrument [Member]
Amount of gain (loss) recognized	[2]	$ (3,761)	$ (28,733)	$ (10,553)	$ (35,415)

[1]The foregoing currency forward and price swap transactions were not designated as hedge transactions and were marked to market with the corresponding gains or losses recognized within “Derivatives and foreign currency transaction gains (losses)” in the consolidated statements of operations and comprehensive income. The price swap transaction was related to a hedging agreement with a third party that was effective January 1, 2021 under which the Company fixed the price per MWh on a portion of RRS provided by its Rabbit Hill storage facility, as described under Note 1 to the consolidated financial statements. The price swap transaction was terminated effective April 1, 2021.[2]The foregoing cross currency swap transactions were designated as a cash flow hedge as further described under Note 1 to the consolidated financial statements. The changes in the cross currency swap fair value are initially recorded in "Other comprehensive income (loss)" and a corresponding amount is reclassified out of "Accumulated other comprehensive income (loss)" to "Derivatives and foreign currency transaction gains (losses)" to offset the remeasurement of the underlying hedged transaction which also impacts the same line item in the consolidated statements of operations and comprehensive income.

Note 4 - Fair Value of Financ_6

Note 4 - Fair Value of Financial Instruments - Effect of Cash Flow Hedge on Statement of Operations and Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Balance		$ 2,337,029	$ 2,014,849	$ 2,020,975	$ 1,998,461
Balance		2,407,042	1,979,294	2,407,042	1,979,294
Cross Currency Swap [Member] \| Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member] \| Designated as Hedging Instrument [Member]
Balance		(1,483)	3,840	3,920	5,745
Gain or (loss) recognized in Other comprehensive income (loss)	[1]	6,238	(30,828)	7,627	(39,415)
Amount reclassified from Other comprehensive income (loss) into earnings		(3,761)	28,733	(10,553)	35,415
Balance		$ 994	$ 1,745	$ 994	$ 1,745

[1]The amount of gain or (loss) recognized in Other comprehensive income (loss) for the years ended December 31, 2022, 2021 and 2020 is net of tax of $0.5 million, $0.8 million and $1.1 million, respectively.

Note 4 - Fair Value of Financ_7

Note 4 - Fair Value of Financial Instruments - Fair Value of Long-term Debt Approximates Its Carrying Amount, Exceptions (Details) - USD ($) $ in Millions		Jun. 30, 2023	Dec. 31, 2022
Finance liability - Dixie Valley		$ 215.2	$ 219.8
Mizrahi Loan Agreement [Member]
Loans		66.1	71.4
Convertible Senior Notes [Member]
Notes		467.6	505.3
HSBC Loan Agreement [Member]
Loans		36.9	40.3
Hapoalim Loan Agreement [Member]
Loans		82.7	91.1
Hapoalim Loan Agreement 2023 [Member]
Loans		104.8
Discount Loan Agreement [Member]
Loans		75.2	81.1
Olkaria III Plant 4 Loan - DEG 2 [Member]
Loans		23.9	26.5
Olkaria III plant 1 Loan - DEG 3 [Member]
Loans		21.1	23.3
Platanares Loan - OPIC [Member]
Loans		75.5	80.2
Amatitlan Loan [Member]
Loans		14.1	14.7
Don A. Campbell 1 ("DAC1") [Member]
Notes		54.2	57.4
USG Prudential - NV [Member]
Notes		23.3	23.7
USG Prudential - ID [Member]
Notes		55.4	56.8
USG DOE [Member]
Notes		31.3	32.8
Senior Unsecured Bonds [Member]
Senior Unsecured debt		196.8	235.1
Senior Unsecured Loan [Member]
Senior Unsecured debt		157.6	166.4
Plumstriker Loan Agreement [Member]
Loans			11.2
Estimate of Fair Value Measurement [Member]
Finance liability - Dixie Valley		215.2	219.8
Other long-term debt		8	9.2
Estimate of Fair Value Measurement [Member] \| Mizrahi Loan Agreement [Member]
Loans		66.1	71.4
Estimate of Fair Value Measurement [Member] \| Convertible Senior Notes [Member]
Notes		467.6	505.3
Estimate of Fair Value Measurement [Member] \| HSBC Loan Agreement [Member]
Loans		36.9	40.3
Estimate of Fair Value Measurement [Member] \| Hapoalim Loan Agreement [Member]
Loans		82.7	91.1
Estimate of Fair Value Measurement [Member] \| Hapoalim Loan Agreement 2023 [Member]
Loans		104.8	0
Estimate of Fair Value Measurement [Member] \| Discount Loan Agreement [Member]
Loans		75.2	81.1
Estimate of Fair Value Measurement [Member] \| Olkaria III OPIC [Member]
Loans		124.8	134.2
Estimate of Fair Value Measurement [Member] \| Olkaria III Plant 4 Loan - DEG 2 [Member]
Loans		23.9	26.5
Estimate of Fair Value Measurement [Member] \| Olkaria III plant 1 Loan - DEG 3 [Member]
Loans		21.1	23.3
Estimate of Fair Value Measurement [Member] \| Platanares Loan - OPIC [Member]
Loans		75.5	80.2
Estimate of Fair Value Measurement [Member] \| Amatitlan Loan [Member]
Loans		14.1	14.7
Estimate of Fair Value Measurement [Member] \| OFC Two Senior Secured Notes [Member]
Notes		140.6	149.8
Estimate of Fair Value Measurement [Member] \| Don A. Campbell 1 ("DAC1") [Member]
Notes		54.2	57.4
Estimate of Fair Value Measurement [Member] \| USG Prudential - NV [Member]
Notes		23.3	23.7
Estimate of Fair Value Measurement [Member] \| USG Prudential - ID [Member]
Notes		55.4	56.8
Estimate of Fair Value Measurement [Member] \| USG DOE [Member]
Notes		31.3	32.8
Estimate of Fair Value Measurement [Member] \| Senior Unsecured Bonds [Member]
Senior Unsecured debt		196.8	235.1
Estimate of Fair Value Measurement [Member] \| Senior Unsecured Loan [Member]
Senior Unsecured debt		157.6	166.4
Estimate of Fair Value Measurement [Member] \| Plumstriker Loan Agreement [Member]
Loans		0	11.2
Reported Value Measurement [Member]
Finance liability - Dixie Valley	[1]	236.1	242
Other long-term debt	[1]	8.6	10.4
Reported Value Measurement [Member] \| Mizrahi Loan Agreement [Member]
Loans	[1]	65.6	70.3
Reported Value Measurement [Member] \| Convertible Senior Notes [Member]
Notes	[1]	431.3	431.3
Reported Value Measurement [Member] \| HSBC Loan Agreement [Member]
Loans	[1]	39.3	42.9
Reported Value Measurement [Member] \| Hapoalim Loan Agreement [Member]
Loans	[1]	89.3	98.2
Reported Value Measurement [Member] \| Hapoalim Loan Agreement 2023 [Member]
Loans		100	0
Reported Value Measurement [Member] \| Discount Loan Agreement [Member]
Loans	[1]	81.3	87.5
Reported Value Measurement [Member] \| Olkaria III OPIC [Member]
Loans	[1]	129.7	138.7
Reported Value Measurement [Member] \| Olkaria III Plant 4 Loan - DEG 2 [Member]
Loans	[1]	25	27.5
Reported Value Measurement [Member] \| Olkaria III plant 1 Loan - DEG 3 [Member]
Loans	[1]	21.8	24
Reported Value Measurement [Member] \| Platanares Loan - OPIC [Member]
Loans	[1]	75.8	79.9
Reported Value Measurement [Member] \| Amatitlan Loan [Member]
Loans	[1]	14	15.8
Reported Value Measurement [Member] \| OFC Two Senior Secured Notes [Member]
Notes	[1]	149.3	158
Reported Value Measurement [Member] \| Don A. Campbell 1 ("DAC1") [Member]
Notes	[1]	59.6	62.7
Reported Value Measurement [Member] \| USG Prudential - NV [Member]
Notes	[1]	24.6	25
Reported Value Measurement [Member] \| USG Prudential - ID [Member]
Notes	[1]	59.8	61.6
Reported Value Measurement [Member] \| USG DOE [Member]
Notes	[1]	31.5	32.8
Reported Value Measurement [Member] \| Senior Unsecured Bonds [Member]
Senior Unsecured debt	[1]	216.2	255.8
Reported Value Measurement [Member] \| Senior Unsecured Loan [Member]
Senior Unsecured debt	[1]	166.4	174.8
Reported Value Measurement [Member] \| Plumstriker Loan Agreement [Member]
Loans	[1]	$ 0	$ 11.4

[1]Carrying amount value excludes the related deferred financing costs.

Note 4 - Fair Value of Financ_8

Note 4 - Fair Value of Financial Instruments - Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Finance liability - Dixie Valley	$ 215.2	$ 219.8
Deposits	19.2	13.9
Mizrahi Loan Agreement [Member]
Loans	66.1	71.4
Convertible Senior Notes [Member]
Notes	467.6	505.3
HSBC Loan Agreement [Member]
Loans	36.9	40.3
Hapoalim Loan Agreement [Member]
Loans	82.7	91.1
Hapoalim Loan Agreement 2023 [Member]
Loans	104.8
Discount Loan Agreement [Member]
Loans	75.2	81.1
Olkaria III Loan DFC [Member]
Loans	124.8	134.2
Olkaria III Plant 4 Loan - DEG 2 [Member]
Loans	23.9	26.5
Olkaria III plant 1 Loan - DEG 3 [Member]
Loans	21.1	23.3
Platanares Loan - OPIC [Member]
Loans	75.5	80.2
Amatitlan Loan [Member]
Loans	14.1	14.7
OFC Senior Secured Notes [Member]
Notes	140.6	149.8
Don A. Campbell 1 ("DAC1") [Member]
Notes	54.2	57.4
USG Prudential - NV [Member]
Notes	23.3	23.7
USG Prudential - ID [Member]
Notes	55.4	56.8
USG DOE [Member]
Notes	31.3	32.8
Senior Unsecured Bonds [Member]
Senior Unsecured debt	196.8	235.1
Senior Unsecured Loan [Member]
Senior Unsecured debt	157.6	166.4
Plumstriker Loan Agreement [Member]
Loans		11.2
Other Long-term Debt [Member]
Senior Unsecured debt	8	9.2
Fair Value, Inputs, Level 1 [Member]
Finance liability - Dixie Valley	0	0
Deposits	19.2	13.9
Fair Value, Inputs, Level 1 [Member] \| Mizrahi Loan Agreement [Member]
Loans	0	0
Fair Value, Inputs, Level 1 [Member] \| Convertible Senior Notes [Member]
Notes	0	0
Fair Value, Inputs, Level 1 [Member] \| HSBC Loan Agreement [Member]
Loans	0	0
Fair Value, Inputs, Level 1 [Member] \| Hapoalim Loan Agreement [Member]
Loans	0	0
Fair Value, Inputs, Level 1 [Member] \| Hapoalim Loan Agreement 2023 [Member]
Loans	0
Fair Value, Inputs, Level 1 [Member] \| Discount Loan Agreement [Member]
Loans	0	0
Fair Value, Inputs, Level 1 [Member] \| Olkaria III Loan DFC [Member]
Loans	0	0
Fair Value, Inputs, Level 1 [Member] \| Olkaria III Plant 4 Loan - DEG 2 [Member]
Loans	0	0
Fair Value, Inputs, Level 1 [Member] \| Olkaria III plant 1 Loan - DEG 3 [Member]
Loans	0	0
Fair Value, Inputs, Level 1 [Member] \| Platanares Loan - OPIC [Member]
Loans	0	0
Fair Value, Inputs, Level 1 [Member] \| Amatitlan Loan [Member]
Loans	0	0
Fair Value, Inputs, Level 1 [Member] \| OFC Senior Secured Notes [Member]
Notes	0	0
Fair Value, Inputs, Level 1 [Member] \| Don A. Campbell 1 ("DAC1") [Member]
Notes	0	0
Fair Value, Inputs, Level 1 [Member] \| USG Prudential - NV [Member]
Notes	0	0
Fair Value, Inputs, Level 1 [Member] \| USG Prudential - ID [Member]
Notes	0	0
Fair Value, Inputs, Level 1 [Member] \| USG DOE [Member]
Notes	0	0
Fair Value, Inputs, Level 1 [Member] \| Senior Unsecured Bonds [Member]
Senior Unsecured debt	0	0
Fair Value, Inputs, Level 1 [Member] \| Senior Unsecured Loan [Member]
Senior Unsecured debt	0	0
Fair Value, Inputs, Level 1 [Member] \| Plumstriker Loan Agreement [Member]
Loans		0
Fair Value, Inputs, Level 1 [Member] \| Other Long-term Debt [Member]
Senior Unsecured debt	0	0
Fair Value, Inputs, Level 2 [Member]
Finance liability - Dixie Valley	0	0
Deposits	0	0
Fair Value, Inputs, Level 2 [Member] \| Mizrahi Loan Agreement [Member]
Loans	0	0
Fair Value, Inputs, Level 2 [Member] \| Convertible Senior Notes [Member]
Notes	467.6	505.3
Fair Value, Inputs, Level 2 [Member] \| HSBC Loan Agreement [Member]
Loans	0	0
Fair Value, Inputs, Level 2 [Member] \| Hapoalim Loan Agreement [Member]
Loans	0	0
Fair Value, Inputs, Level 2 [Member] \| Hapoalim Loan Agreement 2023 [Member]
Loans	0
Fair Value, Inputs, Level 2 [Member] \| Discount Loan Agreement [Member]
Loans	0	0
Fair Value, Inputs, Level 2 [Member] \| Olkaria III Loan DFC [Member]
Loans	0	0
Fair Value, Inputs, Level 2 [Member] \| Olkaria III Plant 4 Loan - DEG 2 [Member]
Loans	0	0
Fair Value, Inputs, Level 2 [Member] \| Olkaria III plant 1 Loan - DEG 3 [Member]
Loans	0	0
Fair Value, Inputs, Level 2 [Member] \| Platanares Loan - OPIC [Member]
Loans	0	0
Fair Value, Inputs, Level 2 [Member] \| Amatitlan Loan [Member]
Loans	14.1	14.7
Fair Value, Inputs, Level 2 [Member] \| OFC Senior Secured Notes [Member]
Notes	0	0
Fair Value, Inputs, Level 2 [Member] \| Don A. Campbell 1 ("DAC1") [Member]
Notes	0	0
Fair Value, Inputs, Level 2 [Member] \| USG Prudential - NV [Member]
Notes	0	0
Fair Value, Inputs, Level 2 [Member] \| USG Prudential - ID [Member]
Notes	0	0
Fair Value, Inputs, Level 2 [Member] \| USG DOE [Member]
Notes	0	0
Fair Value, Inputs, Level 2 [Member] \| Senior Unsecured Bonds [Member]
Senior Unsecured debt	0	0
Fair Value, Inputs, Level 2 [Member] \| Senior Unsecured Loan [Member]
Senior Unsecured debt	0	0
Fair Value, Inputs, Level 2 [Member] \| Plumstriker Loan Agreement [Member]
Loans		11.2
Fair Value, Inputs, Level 2 [Member] \| Other Long-term Debt [Member]
Senior Unsecured debt	0	0
Fair Value, Inputs, Level 3 [Member]
Finance liability - Dixie Valley	215.2	219.8
Deposits	0	0
Fair Value, Inputs, Level 3 [Member] \| Mizrahi Loan Agreement [Member]
Loans	66.1	71.4
Fair Value, Inputs, Level 3 [Member] \| Convertible Senior Notes [Member]
Notes	0	0
Fair Value, Inputs, Level 3 [Member] \| HSBC Loan Agreement [Member]
Loans	36.9	40.3
Fair Value, Inputs, Level 3 [Member] \| Hapoalim Loan Agreement [Member]
Loans	82.7	91.1
Fair Value, Inputs, Level 3 [Member] \| Hapoalim Loan Agreement 2023 [Member]
Loans	104.8
Fair Value, Inputs, Level 3 [Member] \| Discount Loan Agreement [Member]
Loans	75.2	81.1
Fair Value, Inputs, Level 3 [Member] \| Olkaria III Loan DFC [Member]
Loans	124.8	134.2
Fair Value, Inputs, Level 3 [Member] \| Olkaria III Plant 4 Loan - DEG 2 [Member]
Loans	23.9	26.5
Fair Value, Inputs, Level 3 [Member] \| Olkaria III plant 1 Loan - DEG 3 [Member]
Loans	21.1	23.3
Fair Value, Inputs, Level 3 [Member] \| Platanares Loan - OPIC [Member]
Loans	75.5	80.2
Fair Value, Inputs, Level 3 [Member] \| Amatitlan Loan [Member]
Loans	0	0
Fair Value, Inputs, Level 3 [Member] \| OFC Senior Secured Notes [Member]
Notes	140.6	149.8
Fair Value, Inputs, Level 3 [Member] \| Don A. Campbell 1 ("DAC1") [Member]
Notes	54.2	57.4
Fair Value, Inputs, Level 3 [Member] \| USG Prudential - NV [Member]
Notes	23.3	23.7
Fair Value, Inputs, Level 3 [Member] \| USG Prudential - ID [Member]
Notes	55.4	56.8
Fair Value, Inputs, Level 3 [Member] \| USG DOE [Member]
Notes	31.3	32.8
Fair Value, Inputs, Level 3 [Member] \| Senior Unsecured Bonds [Member]
Senior Unsecured debt	196.8	235.1
Fair Value, Inputs, Level 3 [Member] \| Senior Unsecured Loan [Member]
Senior Unsecured debt	157.6	166.4
Fair Value, Inputs, Level 3 [Member] \| Plumstriker Loan Agreement [Member]
Loans		0
Fair Value, Inputs, Level 3 [Member] \| Other Long-term Debt [Member]
Senior Unsecured debt	$ 8	$ 9.2

Note 5 - Stock-based Compensa_3

Note 5 - Stock-based Compensation (Details Textual) - The 2018 Incentive Compensation Plan [Member] - $ / shares		1 Months Ended	6 Months Ended
	May 01, 2023	Mar. 31, 2023	Jun. 30, 2023
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	11,852	174,422
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)		$ 79.9	$ 82.9
Restricted Stock Units (RSUs) [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		1 year
Restricted Stock Units (RSUs) [Member] \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		4 years
Performance Stock Units (PSU) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		35,081
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)		$ 79.6
Performance Stock Units (PSU) [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		1 year

Note 5 - Stock-based Compensa_4

Note 5 - Stock-based Compensation - Fair Value of Stock-based Award on the Date of Grant (Details)	1 Months Ended	6 Months Ended
	May 31, 2023	Jun. 30, 2023
Restricted Stock Units (RSUs), and Performance Stock Units (PSU) [Member]
Dividend yield		0.59%
Restricted Stock Units (RSUs), and Performance Stock Units (PSU) [Member] \| Minimum [Member]
Risk-free interest rates		3.86%
Expected life (in years) (Year)		2 years
Expected volatility (weighted average)		36%
Restricted Stock Units (RSUs), and Performance Stock Units (PSU) [Member] \| Maximum [Member]
Risk-free interest rates		4.68%
Expected life (in years) (Year)		5 years 9 months
Expected volatility (weighted average)		42.20%
Restricted Stock Units (RSUs) [Member]
Risk-free interest rates	4.70%
Expected life (in years) (Year)	1 year
Dividend yield	0.56%
Expected volatility (weighted average)	34.80%

Note 6 - Interest Expense, Ne_2

Note 6 - Interest Expense, Net - Components of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Interest related to sale of tax benefits	$ 3,610	$ 3,463	$ 6,951	$ 6,894
Interest expense	25,162	22,492	49,781	44,978
Less — amount capitalized	(4,378)	(5,537)	(8,708)	(10,373)
Total interest expense, net	$ 24,393	$ 20,418	$ 48,024	$ 41,499

Note 7 - Earnings Per Share (De

Note 7 - Earnings Per Share (Details Textual) - $ / shares	3 Months Ended		6 Months Ended
Note 7 - Earnings Per Share (Details Textual) - $ / shares	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	28,700	152,000	24,900	87,000
Convertible Senior Notes [Member]
Debt Instrument, Convertible, Conversion Price (in dollars per share)					$ 90.27

Note 7 - Earnings Per Share - S

Note 7 - Earnings Per Share - Shares Used to Calculate Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Weighted average number of shares used in computation of basic earnings per share: (in shares)	60,245	56,114	58,494	56,089
Additional shares from the assumed exercise of employee stock awards (in shares)	389	384	407	342
Weighted average number of shares used in computation of diluted earnings per share (in shares)	60,634	56,498	58,901	56,431

Note 8 - Business Segments (Det

Note 8 - Business Segments (Details Textual) $ in Thousands	3 Months Ended		6 Months Ended
Note 8 - Business Segments (Details Textual) $ in Thousands	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Number of Reportable Segments			3
Revenue from Contract with Customer, Including Assessed Tax	$ 194,796	$ 169,078	$ 380,028	$ 352,788
Goodwill	90,456		90,456		$ 90,325
Electricity Segment [Member]
Goodwill	85,800	85,600	85,800	85,600
Electricity Segment [Member] \| Accounted for Under ASC 606 [Member]
Revenue from Contract with Customer, Including Assessed Tax	30,200	23,200	62,900	46,000
Energy Storage and Management Services [Member]
Goodwill	4,600	4,600	4,600	4,600
Product Segment [Member]
Goodwill	$ 0	$ 0	$ 0	$ 0

Note 8 - Business Segments - Su

Note 8 - Business Segments - Summarized Financial Information Concerning Reportable Segments (Details) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2023		Jun. 30, 2022		Jun. 30, 2023		Jun. 30, 2022		Dec. 31, 2022
Revenue		$ 194,796		$ 169,078		$ 380,028		$ 352,788
Operating income (loss)		24,224		38,607		77,390		83,685
Segment assets at period end		5,010,644	[1],[2]	4,541,976	[1],[2]	5,010,644	[1],[2]	4,541,976	[1],[2]	$ 4,611,579
UNITED STATES
Revenue		114,476	[3]	113,818	[3]	243,208		237,019
Non-US [Member]
Revenue		80,320	[4]	55,260	[4]	136,820		115,769
Segment Reconciling Items [Member]
Revenue		0	[5]	0	[5]	0		0
Segment assets at period end		126,451		114,699		126,451		114,699
Electricity Segment [Member] \| Operating Segments [Member]
Revenue		155,324		151,195		325,634		313,720
Operating income (loss)		28,661		40,466		85,669		88,041
Segment assets at period end	[1],[2]	4,576,437		4,222,340		4,576,437		4,222,340
Electricity Segment [Member] \| Operating Segments [Member] \| UNITED STATES
Revenue		106,209	[3]	105,193	[3]	228,620		221,302
Electricity Segment [Member] \| Operating Segments [Member] \| Non-US [Member]
Revenue		49,115	[4]	46,002	[4]	97,014		92,418
Electricity Segment [Member] \| Segment Reconciling Items [Member]
Revenue		0	[5]	0	[5]	0		0
Segment assets at period end		126,451		114,699		126,451		114,699
Product Segment [Member] \| Operating Segments [Member]
Revenue		33,458		10,392		43,500		25,020
Operating income (loss)				(2,276)		(3,802)		(3,851)
Segment assets at period end	[1],[2]	182,437		122,221		182,437		122,221
Product Segment [Member] \| Operating Segments [Member] \| UNITED STATES
Revenue		2,253	[3]	1,134	[3]	3,694		1,669
Operating income (loss)		(2,297)
Product Segment [Member] \| Operating Segments [Member] \| Non-US [Member]
Revenue		31,205	[4]	9,258	[4]	39,806		23,351
Product Segment [Member] \| Segment Reconciling Items [Member]
Revenue		12,918	[5]	22,097	[5]	20,690		43,000
Segment assets at period end		0		0		0		0
Other Segments [Member] \| Operating Segments [Member]
Revenue		6,014		7,491		10,894		14,048
Operating income (loss)		(2,140)		417		(4,477)		(505)
Segment assets at period end	[1],[2]	251,770		197,415		251,770		197,415
Other Segments [Member] \| Operating Segments [Member] \| UNITED STATES
Revenue		6,014	[3]	7,491	[3]	10,894		14,048
Other Segments [Member] \| Operating Segments [Member] \| Non-US [Member]
Revenue		0	[4]	0	[4]	0		0
Other Segments [Member] \| Segment Reconciling Items [Member]
Revenue		0	[5]	0	[5]	0		0
Segment assets at period end		$ 0		$ 0		$ 0		$ 0

[1]Electricity segment assets include goodwill in the amount of $85.8 million and $86.0 million as of March 31, 2023 and 2022, respectively. Energy Storage segment assets include goodwill in the amount of $4.6 million and $4.6 as of March 31, 2023 and 2022, respectively. No goodwill is included in the Product segment assets as of March 31, 2023 and 2022.[2]Including unconsolidated investments[3]Electricity segment revenues in the United States are all accounted under lease accounting except for $32.7 million for the three months ended March 31, 2023, and $22.8 million for the three months ended March 31, 2022, respectively, that are accounted under ASC 606. Product and Energy Storage segment revenues in the United States are accounted under ASC 606.[4]Electricity segment revenues in foreign countries are all accounted under lease accounting. Product segment revenues in foreign countries are accounted under ASC 606.[5]Intersegment revenues are fully eliminated in consolidation.

Note 8 - Business Segments - Re

Note 8 - Business Segments - Reconciling Information Between Reportable Segments and Consolidated Totals (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue	$ 194,796	$ 169,078	$ 380,028	$ 352,788
Operating income (loss)	24,224	38,607	77,390	83,685
Interest income	4,942	179	6,793	521
Interest expense, net	(24,393)	(20,418)	(48,024)	(41,499)
Derivatives and foreign currency transaction gains (losses)	(1,272)	(3,998)	(3,209)	(3,738)
Income attributable to sale of tax benefits	14,979	9,527	27,545	17,232
Other non-operating income (expense), net	79	(1,260)	139	(1,185)
Total consolidated income before income taxes and equity in income of investees	18,559	22,637	60,634	55,016
Intersegment Eliminations [Member]
Revenue	12,918	22,097	20,690	43,000
Consolidation, Eliminations [Member]
Revenue	$ (12,918)	$ (22,097)	$ (20,690)	$ (43,000)

Note 9 - Commitments and Cont_2

Note 9 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Construction in Progress, Gross	$ 714,850	$ 893,198
Dixie Meadows PPA [Member]
Construction in Progress, Gross	$ 84,700

Note 10 - Income Taxes (Details

Note 10 - Income Taxes (Details Textual)			3 Months Ended			6 Months Ended
Note 10 - Income Taxes (Details Textual)	Jun. 27, 2023	Jun. 26, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Effective Income Tax Rate Reconciliation, Percent			21.30%		27.10%	8.10%	29.60%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21%
Kenya [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	30%	37.50%

Note 11 - Subsequent Events (De

Note 11 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended
	Aug. 02, 2023	Jul. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022
Dividends, Common Stock			$ 7,229	$ 6,732	$ 6,731	$ 6,727
Common Stock, Dividends, Per Share, Declared (in dollars per share)			$ 0.12	$ 0.12
Subsequent Event [Member]
Dividends, Common Stock	$ 7,200
Common Stock, Dividends, Per Share, Declared (in dollars per share)	$ 0.12
Dividends Payable, Date of Record	Aug. 16, 2023
Dividends Payable, Date to be Paid	Aug. 30, 2023
Subsequent Event [Member] \| Northleaf Geothermal Holdings, Northleaf [Member]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage		36.75%
Business Combination, Consideration Transferred		$ 30,000
Subsequent Event [Member] \| ORPD LLC [Member]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage		63.25%

Item 5 - Other Information (Det

Item 5 - Other Information (Details Textual)	3 Months Ended
Item 5 - Other Information (Details Textual)	Jun. 30, 2023 shares
Board of Directors Chairman [Member]
Issuer Rule 10b5-1, Arrangement Adoption Date	Apr. 02, 2023
Issuer Rule 10b5-1, Aggregate Available Shares (in shares)	334,514
Issuer Rule 10b5-1, Arrangement Termination Date	Dec. 31, 2023
Board of Directors Chairman [Member] \| Restricted Stock Units (RSUs) [Member]
Issuer Rule 10b5-1, Aggregate Available Shares (in shares)	39,615
Board of Directors Chairman [Member] \| Stock Appreciation Rights (SARs) [Member]
Issuer Rule 10b5-1, Aggregate Available Shares (in shares)	294,899
Chief Executive Officer [Member]
Issuer Rule 10b5-1, Arrangement Adoption Date	Apr. 02, 2023
Issuer Rule 10b5-1, Aggregate Available Shares (in shares)	68,252
Issuer Rule 10b5-1, Arrangement Termination Date	Dec. 31, 2023