Company: SUNE
Filing Date: 2025-04-22
Form Type: S-3
Source: 0001213900-25-033892
Chunk: 0

Company: SUNation Energy, Inc.
Filing Date: 2025-04-22
Form: S-3
Chunk 0
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<div align='center'>As filed with the Securities and Exchange Commission on April 22, 2025</div>

Registration No. 333-

<div align='center'>UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-3

REGISTRATION STATEMENT UNDER
THE SECURITIES ACT OF 1933

SUNation Energy, Inc.

(Exact name of registrant as specified
in its charter)</div>

| Delaware                        |     | 41-0957999            |
| (State or other jurisdiction of 
 incorporation or organization)  |     | -I.R.S. Employer      
 Identification Number |

<div align='center'>171 Remington Boulevard

Ronkonkoma, NY 11779

(631) 750-9454

(Address, including zip code, and telephone
number, including area code, of registrant’s principal executive offices)

Scott Maskin, Chief Executive Officer

SUNation Energy, Inc.

171 Remington Boulevard

Ronkonkoma, NY 11779

(631) 750-9454

(Name, address, including zip code, and
telephone number, including area code, of agent for service)

With copies to:

Theodore Ghorra

Rimon, P.C.

400 Madison Ave, Suite 11D

New York, NY 10017

(212) 515-9979

Approximate date of commencement of proposed sale to the public:
From time to time after the effective date of this registration statement.</div>

If the only securities being registered on this
Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐

If any of the securities being registered on
this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, as amended, other
than securities offered only in connection with dividend or interest reinvestment plans, check the following box: ☒

If this Form is filed to register additional
securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act
registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed
pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of
the earlier effective registration statement