Cover - USD ($)	12 Months Ended
	Dec. 31, 2024	Feb. 20, 2025	Jun. 30, 2024
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2024
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-32347
Entity Registrant Name	ORMAT TECHNOLOGIES, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	88-0326081
Entity Address, Address Line One	6884 Sierra Center Parkway,
Entity Address, City or Town	Reno,
Entity Address, State or Province	NV
Entity Address, Postal Zip Code	89511-2210
City Area Code	775
Local Phone Number	356-9026
Title of 12(b) Security	Common Stock $0.001 Par Value
Trading Symbol	ORA
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 3,855,815,632
Entity Common Stock, Shares Outstanding		60,500,580
Entity Central Index Key	0001296445
Amendment Flag	false
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2024