As filed with the U.S. Securities and Exchange Commission on May 6, 2024 Registration No. 333-276630 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 Alternus Clean Energy, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 4931 87-1431377 (State or Other Jurisdiction of Incorporation or Organization) Copy to: Ross D. Carmel, Esq. Jeffrey P. Wofford, Esq. Sichenzia Ross Ference Carmel ...