Company: ALCE
Filing Date: 2025-06-30
Form Type: 10-Q
Source: 0001213900-25-059349
Chunk: 364

Company: Alternus Clean Energy, Inc.
Filing Date: 2025-06-30
Form: 10-Q
Item: Part I, Item 4
Chunk 364
---
 and Investor dated June 6, 2025
  
    31.1*
     
    Certification of the Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
  
    31.2**
     
    Certification of the Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
  
    32.1**
     
    Certification by the Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
  
    101.INS
     
    Inline XBRL Instance Document.
  
    101.SCH
     
    Inline XBRL Taxonomy Extension Schema Document.
  
    101.CAL
     
    Inline XBRL Taxonomy Extension Calculation Linkbase Document.
  
    101.DEF
     
    Inline XBRL Taxonomy Extension Definition Linkbase Document.
  
    101.LAB
     
    Inline XBRL Taxonomy Extension Label Linkbase Document.
  
    101.PRE
     
    Inline XBRL Taxonomy Extension Presentation Linkbase Document.
  
    104
     
    Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

*Filed
herewith

**Exhibit
32.1 is being furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act, or otherwise
subject to the liability of that section, nor shall such exhibits be deemed to be incorporated by reference in any registration statement
or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as otherwise specifically stated in
such filing.

56

SIGNATURES

Pursuant to the requirements of Section 13
or 15(d) of the Securities Exchange Act of 1934, the Company has duly caused this report to be signed on its behalf by the undersigned,
thereunto duly authorized.

    Date: June 30, 2025
    ALTERNUS CLEAN ENERGY, INC.

    By:
    /s/ Vincent Browne

    Vincent Browne

    Chairman, Chief Executive Officer and
 Interim Chief Financial Officer

Pursuant to the requirements of the Securities
Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant