Company: SUNE
Filing Date: 2025-02-27
Form Type: 424B5
Source: 0001213900-25-017771
Chunk: 0

Company: SUNation Energy, Inc.
Filing Date: 2025-02-27
Form: 424B5
Chunk 0
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Filed pursuant to Rule 424(b)(5)

Registration No. 333-267066

PROSPECTUS SUPPLEMENT dated February 27, 2025

(To Prospectus dated September 2, 2022)

<div align='center'>Up to 1,965,000 Shares of Common Stock

Pre-Funded Warrants to Purchase up to 11,078,480 Shares of Common Stock</div>

We are offering up to 13,043,480 shares of common
stock (or pre-funded warrant to purchase common stock (the “Pre-Funded Warrants”)) in lieu thereof, as described below), at
a public offering price of $1.15 per share, which is equal to the last reported sale price per share of our common stock on The Nasdaq
Capital Market on February 26, 2025, together with, (i) subject to stockholder approval required in compliance with Nasdaq listing rule
5635(d) (the “Warrant Stockholder Approval”), 4,347,826 shares of common stock or Pre-Funded Warrants, 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 (ii) the shares issuable from time to time upon exercise of the common
warrants and Pre-Funded 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.”

We will have two closing for the securities purchased in this offering,
including (i) an aggregate of $15 million in securities in a first closing consisting 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, and (ii) an aggregate of $5 million in securities in a second
closing after Warrant Stockholder Approval, consisting of (x) 4,347,826 Shares or Pre-Funded Warrants, (y) Series A Warrants to purchase