Company: SUNE
Filing Date: 2025-08-18
Form Type: 424B5
Source: 0001213900-25-078001
Chunk: 25

Company: SUNation Energy, Inc.
Filing Date: 2025-08-18
Form: 424B5
Chunk 25
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not, and should not be deemed to be, a part of this prospectus supplement. You may also request a copy of these filings, at no cost,
by writing us at 171 Remington Boulevard, Ronkonkoma, NY 11779, Attention: Corporate Secretary.

We are “incorporating by reference”
specified documents that we file with the SEC, which means:

| ● | incorporated                                                                                                           
 documents are considered part of this prospectus supplement;                                                           |
| ● | we                                                                                                                     
 are disclosing important information to you by referring you to those documents; and                                   |
| ● | information                                                                                                            
 that we file with the SEC will automatically update and supersede information contained in this prospectus supplement. |

We incorporate by reference into this prospectus
supplement the documents listed below and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange
Act (i) after the date of filing of the registration statement of which this prospectus supplement is a part and prior to the effectiveness
of such registration statement, and (ii) on or after the date of this prospectus supplement until the earlier of the date on which all
of the securities registered hereunder have been sold or the registration statement of which this prospectus supplement is a part has
been withdrawn:

<div align='center'>S-12

INCORPORATION OF CERTAIN informationBY REFERENCE</div>

The SEC allows us to incorporate by reference
the information and reports we file with it, which means that we can disclose important information to you by referring you to these
documents. The information incorporated by reference is an important part of this prospectus supplement. We are incorporating by reference
the documents listed below, which we have already filed with the SEC:

| ● 
 ● | our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the SEC on April 15, 2025, as amended on Form 10-K/A, filed                                                                                 
 with the SEC on  April 30, 2025                                                                                                                                                                                                    
 our Quarterly                                                                                                                                                                                                                      
 Reports on Form 10-Q for the fiscal quarters ended March 31, 2025, filed with the SEC on May                                                                                                                                       
 15, 2025, and June 30, 2025, filed with the SEC on August 15, 2025                                                                                                                                                                 |
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| ●