Company: SUNE
Filing Date: 2025-08-18
Form Type: 424B5
Source: 0001213900-25-078001
Chunk: 2

Company: SUNation Energy, Inc.
Filing Date: 2025-08-18
Form: 424B5
Chunk 2
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| USE OF PROCEEDS                                           |     | 13 |
| DESCRIPTION OF SECURITIES                                 |     | 14 |
| DESCRIPTION OF DEBT SECURITIES                            |     | 17 |
| DESCRIPTION OF WARRANTS                                   |     | 32 |
| DESCRIPTION OF STOCK PURCHASE CONTRACTS                   |     | 35 |
| DESCRIPTION OF RIGHTS                                     |     | 36 |
| DESCRIPTION OF UNITS                                      |     | 37 |
| PLAN OF DISTRIBUTION                                      |     | 38 |
| LEGAL MATTERS                                             |     | 41 |
| EXPERTS                                                   |     | 41 |

<div align='center'>S-i

ABOUT THIS PROSPECTUS SUPPLEMENT</div>

This prospectus supplement and
the accompanying prospectus are part of a registration statement that we filed with the U.S. Securities and Exchange Commission, or SEC,
utilizing a “shelf” registration process. This document is in two parts. The first part is this prospectus supplement, which
describes the specific terms of this offering and also adds to and updates information contained in the accompanying prospectus and the
documents incorporated by reference herein. The second part, the accompanying prospectus, provides more general information. Generally,
when we refer to this prospectus, we are referring to both parts of this document combined. To the extent there is a conflict between
the information contained in this prospectus supplement and the information contained in the accompanying prospectus or any document
incorporated by reference therein filed prior to the date of this prospectus supplement, you should rely on the information in this prospectus
supplement; provided that if any statement in one of these documents is inconsistent with a statement in another document having a later
date-for example, a document incorporated by reference in the accompanying prospectus-the statement in the document having the later
date modifies or supersedes the earlier statement.

We have not, and the Sales Agent
has not, authorized anyone to give you any information or to represent anything other than that contained or incorporated by reference
in this prospectus supplement or the accompanying prospectus. You must not rely on any unauthorized information or representations. This
prospectus supplement and the accompanying prospectus are an offer to sell only the securities offered hereby, but only under circumstances
and in jurisdictions where it is lawful to do so. The information contained in this prospectus supplement and the accompanying prospectus
is current only as of their respective dates.

We further note that the representations,
warranties and