v3.25.4
Consolidated Statements of Operations and Comprehensive Loss - USD ($)
shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Income Statement [Abstract]    
Revenue $ 0 $ 250
Cost of revenue 0 31
Gross profit 0 219
Operating expenses    
General and administrative 40,345 30,267
Sales and marketing 4,912 3,865
Research and development 99,508 63,853
Project development 72,379 1,932
Impairment and other charges 1,512,217 0
Depreciation, amortization, and accretion 62,387 81,623
Total operating expenses 1,791,748 181,540
Operating loss (1,791,748) (181,321)
Other income (expense)    
Interest income, net 20,297 31,389
Change in Earnout Shares liability and Warrant liability 72,391 (25,656)
Change in Tax Receivable Agreement liability 21,317 0
Other income 11 364
Net other income 114,016 6,097
Net loss before income tax (1,677,732) (175,224)
Income tax benefit 4,305 10,580
Net loss after income tax (1,673,427) (164,644)
Net loss attributable to non-controlling interests (1,094,799) (115,453)
Net loss attributable to NET Power Inc. (578,628) (49,191)
Other comprehensive income    
Unrealized gain on investments 97 139
Total other comprehensive income 97 139
Comprehensive loss (1,673,330) (164,505)
Comprehensive loss attributable to non-controlling interests (1,094,799) (115,346)
Comprehensive loss attributable to NET Power Inc. $ (578,531) $ (49,159)
Loss per share of Class A Common Stock, basic (in dollars per share) $ (7.34) $ (0.67)
Loss per share of Class A Common Stock, diluted (in dollars per share) $ (7.34) $ (0.67)
Weighted average shares of Class A Common Stock, basic (in shares) 78,822 73,397
Weighted average shares of Class A Common Stock, diluted (in shares) 78,822 73,397