As filed with the U.S. Securities and Exchange Commission on July 26, 2024 Registration No. 333-278994 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 3 to FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Alternus Clean Energy, Inc. (Exact Name of Registrant as Specified in Its Charter) | Delawar | | --- | (State or Other Jurisdiction of Incorporation or Organization) Delaware 4931 87-1431377 (Primary Standard Industrial Classification Number) (I.R.S. Em ...