Cover - shares	9 Months Ended
	Sep. 30, 2022	Nov. 14, 2022
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Sep. 30, 2022
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2022
Current Fiscal Year End Date	--12-31
Entity File Number	0-30351
Entity Registrant Name	SPI ENERGY CO., LTD.
Entity Central Index Key	0001210618
Entity Tax Identification Number	20-4956638
Entity Incorporation, State or Country Code	E9
Entity Address, Address Line One	4803 Urbani Ave.
Entity Address, City or Town	Mc Clellan Park
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95652
City Area Code	(408)
Local Phone Number	919-8000
Title of 12(b) Security	Ordinary Shares, par value $0.0001 per share
Trading Symbol	SPI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		28,841,236