Company: SUNE
Filing Date: 2025-08-18
Form Type: 424B5
Source: 0001213900-25-078001
Chunk: 9

Company: SUNation Energy, Inc.
Filing Date: 2025-08-18
Form: 424B5
Chunk 9
---
 the New York and Hawaii markets. Projects span a wide range of property types—including office buildings,
warehouses, schools, and non-profit organizations—and are tailored to meet customer needs through various system configurations,
including rooftop installations, ground-mounted arrays, and solar carports.

Corporate Information

We are a Delaware corporation that operates directly
and through our subsidiaries located in the United States (“U.S.”). We are listed on the Nasdaq Capital Market. Our principal
office is located at 171 Remington Boulevard, Ronkonkoma, NY 11779, and our telephone number is (631) 750-9454. Our website address is
www.sunation.com. The information contained in, or accessible through, our website does not constitute part of this prospectus.

<div align='center'>S-1</div>

THE OFFERING

| Issuer                                         |     | SUNation                                                                                                                               
 Energy Inc.                                                                                                                            |
| Common                                         
 Stock offered by us                            |     | Shares                                                                                                                                 
 of our Common Stock having an aggregate offering price of up to $30,000,000                                                            |
| Common                                         
 Stock to be outstanding after this Offering(1) |     | Up to                                                                                                                                  
 21,478,903 shares, after giving effect to the assumed sale of 18,072,289 shares of our Common Stock in this offering at an assumed     
 price of $1.66 per share, which was the closing price of our Common Stock on Nasdaq on August 15, 2025. The actual number of shares    
 issuable in this Offering will depend on the price at which shares are sold from time to time during this offering                     |
| Form                                           
 of Offering                                    |     | At                                                                                                                                     
 the market offering” of our Common Stock that may be made from time to time through or to the Sales Agent, as agent or principal.      
 See “Plan of Distribution” on page S-10 of this prospectus supplement                                                                  |
| Nasdaq                                         
 Capital Market symbol                          |     | SUNE                                                                                                                                   |
| Use of                                         
 proceeds                                       |     | We currently                                                                                                                           
 intend to use the net proceeds from this offering under this prospectus supplement for working capital and general corporate purposes. 
 See “Use of Proceeds” on page S-7 of this prospectus supplement.                                                                       |
| Risk                                           
 Factors                                        |     | See “Risk                                                                                                                              
 Factors” on page S-3 and the other information included or incorporated by reference in this prospectus supplement and the