Company: SUNE
Filing Date: 2025-04-07
Form Type: 424B5
Source: 0001213900-25-029179
Chunk: 0

Company: SUNation Energy, Inc.
Filing Date: 2025-04-07
Form: 424B5
Chunk 0
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Filed pursuant to Rule 424(b)(5)

Registration No. 333-267066

PROSPECTUS SUPPLEMENT dated April 7, 2025

(To Prospectus dated September 2, 2022)

<div align='center'>Up to 4,347,826 Shares of Common Stock

Series A Warrants to Purchase up to 17,391,306 Shares of Common Stock

Series B Warrants to Purchase up to 17,391,306 Shares of Common Stock</div>

We are offering up to (i) 4,347,826 shares of common
stock at a public offering price of $1.15 per share, which is equal to the reported sale price per share of our common stock on The Nasdaq
Capital Market on February 26, 2025, (ii) Series A warrants to purchase up to 17,391,306 shares of common stock (the “Series A Warrants”)
and Series B warrants to purchase up to 17,391,306 shares of common stock (the “Series B Warrants,” and collectively with
Series A Warrants, the “common warrants”), subject to certain anti-dilution and issue date protections, and (iii) the shares
issuable from time to time upon exercise of the common warrants (the “Warrant Shares”), pursuant to this prospectus supplement
in a “reasonable best efforts” offering. The Series A Warrants and the Series B Warrants will be exercisable from issuance
and will expire five (5) years after the issuance date. See “Description of Securities.”

This offering is the second part of the two-part
offering we announced on February 27, 2025 whereby we planned to have two closings for the securities purchased in the two-part offering,
including (i) an aggregate of $15 million in securities that we sold in the first closing on February 27, 2025 which consisted of (x)
1,965,000 shares of common stock and (y) pre-funded warrants to purchase up to 11,078,480 shares of common stock (“Pre-Funded Warrants”),
and (ii) after receiving the required stockholder approval to be in compliance with Nasdaq listing rule 5635(d) (“Warrant Stockholder
Approval”), an aggregate of $5 million in securities in this second closing, consisting of (x) 4,347,826 Shares, (y) Series A Warrants
to purchase up to 17