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Cover
Oct. 24, 2023
Cover [Abstract]  
Document Type 8-K
Document Period End Date Oct. 24, 2023
Entity Registrant Name NuScale Power Corporation
Entity Incorporation, State or Country Code DE
Entity File Number 001-39736
Entity Tax Identification Number 98-1588588
Entity Address, Address Line One 12725 SW 66th Avenue
Entity Address, Address Line Two Suite 107
Entity Address, City or Town Portland
Entity Address, State or Province OR
Entity Address, Postal Zip Code 97223
City Area Code 971
Local Phone Number 371-1592
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Entity Ex Transition Period false
Entity Central Index Key 0001822966
Amendment Flag false
Document Information [Line Items]  
Document Period End Date Oct. 24, 2023
Warrant  
Cover [Abstract]  
Title of 12(b) Security Warrants to purchase Class A common stock
Trading Symbol SMR WS
Security Exchange Name NYSE
Document Information [Line Items]  
Title of 12(b) Security Warrants to purchase Class A common stock
Trading Symbol SMR WS
Security Exchange Name NYSE
Common Class A  
Cover [Abstract]  
Title of 12(b) Security Class A common stock, $0.0001 par value per share
Trading Symbol SMR
Security Exchange Name NYSE
Document Information [Line Items]  
Title of 12(b) Security Class A common stock, $0.0001 par value per share
Trading Symbol SMR
Security Exchange Name NYSE