netpower(NPWR) - Prospectus(update)

As filed with the Securities and Exchange Commission on September 15, 2023 No. 333-273183 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 _________________________________________ AMENDMENT NO. 1 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 _________________________________________ NET POWER INC. (Exact name of registrant as specified in its charter) _________________________________________ | | | --- | Delaware 3620 98-1580612 (Primary Standard Industrial Clas ...