Directory of Power Plants in New York
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Ogdensburg | Ampersand Ogdensburg Hydro, LLC | Ogdensburg, NY | New York Independent System Operator (NYIS) | 4.4 GWh | Nov 1987 | Dec 2025 | Water |
| Oneida East | Azimuth 180 Solar Electric, LLC | Holland Patent, NY | New York Independent System Operator (NYIS) | 891.0 MWh | Aug 2025 | Dec 2025 | Solar |
| Ontario Sun | Azimuth 180 Solar Electric, LLC | Sandy Creek, NY | New York Independent System Operator (NYIS) | 3.4 GWh | Jan 2023 | Dec 2025 | Solar |
| Orioles Community Solar | Azimuth 180 Solar Electric, LLC | Hannacroix, NY | New York Independent System Operator (NYIS) | 7.2 GWh | Sep 2022 | Dec 2025 | Solar |
| Onondaga County Resource Recovery | Covanta Onondega LP | Jamesville, NY | New York Independent System Operator (NYIS) | 179.4 GWh | Oct 1994 | May 2026 | Non-biogenic Municipal Solid Waste : 53.8% Biogenic Municipal Solid Waste : 44.0% Natural Gas : 2.2% |
| Orbit Bloom Fuel Cell | DG Fuel Cell, LLC | Medford, NY | New York Independent System Operator (NYIS) | 44.4 GWh | Jul 2020 | Dec 2025 | Natural Gas |
| Oswego Falls East | Erie Boulevard Hydropower LP | Fulton, NY | New York Independent System Operator (NYIS) | 22.2 GWh | Dec 1913 | Dec 2025 | Water |
| Oswego Falls West | Erie Boulevard Hydropower LP | Fulton, NY | New York Independent System Operator (NYIS) | 3.4 GWh | Dec 1913 | Dec 2025 | Water |
| Oswegatchie | Erie Boulevard Hydropower LP | Edwards, NY | New York Independent System Operator (NYIS) | 7.0 GWh | Jul 2002 | Dec 2025 | Water |
| O'Brien 2 | Generate Capital | Hartford, NY | New York Independent System Operator (NYIS) | 7.4 GWh | Apr 2024 | Dec 2025 | Solar |
| O'Brien 1 | Generate Capital | Hartford, NY | New York Independent System Operator (NYIS) | 769.0 MWh | Apr 2024 | Mar 2025 | Solar |
| Owens Corning at Bethlehem | Luminace Solar Holding, LLC | Bethlehem, NY | New York Independent System Operator (NYIS) | 3.1 GWh | Sep 2013 | Dec 2025 | Solar |
| Oneida - South | Madison Energy Investments LLC | Whitestown, NY | New York Independent System Operator (NYIS) | 2.0 GWh | Nov 2015 | Dec 2025 | Solar |
| Oneida - West | Madison Energy Investments LLC | Whitestown, NY | New York Independent System Operator (NYIS) | 2.1 GWh | Nov 2015 | Oct 2025 | Solar |
| Ontario 2 CDG | NY CDG Ontario 2, LLC | Phelps, NY | New York Independent System Operator (NYIS) | 4.5 GWh | May 2025 | Dec 2025 | Solar |
| Old Route 17 | NY Thompson III, LLC | Harris, NY | New York Independent System Operator (NYIS) | 5.0 GWh | Mar 2025 | Dec 2025 | Solar |
| Oswego | NY USLE Oswego SR104 LLC | Oswego, NY | New York Independent System Operator (NYIS) | 7.3 GWh | Aug 2023 | Dec 2025 | Solar |
| Off Airport Road - West | Off Airport Road - West, LLC | Accord, NY | New York Independent System Operator (NYIS) | 6.4 GWh | Nov 2019 | Dec 2025 | Solar |
| Onyx - Lamphear Road CSG | Onyx Asset Services Group | Rome, NY | New York Independent System Operator (NYIS) | 2.6 GWh | Sep 2016 | Dec 2025 | Solar |
| Onyx - Saratoga Springs Landfill Solar C | Onyx Asset Services Group | Saratoga Springs, NY | New York Independent System Operator (NYIS) | 2.9 GWh | Oct 2017 | Dec 2025 | Solar |
| Oswego County Energy Recovery | Oswego County - (NY) | Fulton, NY | New York Independent System Operator (NYIS) | 5.6 GWh | Jan 1986 | Dec 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Oswego Harbor Power | Oswego Harbor Power | Oswego, NY | New York Independent System Operator (NYIS) | 130.8 GWh | May 1975 | Feb 2026 | Residual Fuel Oil : 98.0% Natural Gas : 2.0% |
| Owlville Creek Solar 2, LLC | Owlville Creek Solar 2, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 7.8 GWh | Nov 2020 | Dec 2024 | Solar |
| Owlville Creek Solar, LLC | Owlville Creek Solar, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 8.4 GWh | Nov 2020 | Dec 2025 | Solar |
| OYA Church Road | OYA Church Road A LLC | Baldwinsville, NY | New York Independent System Operator (NYIS) | 8.6 GWh | Nov 2022 | Dec 2025 | Solar |
| OYA Main Street | OYA Main Street LLC | York, NY | New York Independent System Operator (NYIS) | 6.7 GWh | Nov 2022 | Dec 2025 | Solar |
| Ontario LFGTE | Seneca Energy II | Stanley, NY | New York Independent System Operator (NYIS) | 77.7 GWh | Oct 2003 | Dec 2025 | Landfill Gas |
| OYA Pulaski | SunStrong Management, LLC | Pulaski, NY | New York Independent System Operator (NYIS) | 6.9 GWh | Oct 2022 | Dec 2025 | Solar |
| OYA Wayside Drive | SunStrong Management, LLC | Watertown, NY | New York Independent System Operator (NYIS) | 10.4 GWh | Sep 2022 | Dec 2025 | Solar |
| OYA State Route 122 | SunStrong Management, LLC | Constable, NY | New York Independent System Operator (NYIS) | 10.1 GWh | Nov 2021 | Dec 2025 | Solar |
| OYA Robinson Road | SunStrong Management, LLC | Orleans, NY | New York Independent System Operator (NYIS) | 10.2 GWh | May 2022 | Dec 2025 | Solar |
| Oswego County - Fulton Solar | Tesla Inc. | Fulton, NY | New York Independent System Operator (NYIS) | 1.5 GWh | May 2018 | Dec 2025 | Solar |
| Onondaga County- Clearwater | Tesla Inc. | Oswego, NY | ISO New England (ISNE) | 2.5 GWh | Jun 2017 | Dec 2025 | Solar |
| Onondaga County - Metro Water Board | Tesla Inc. | Clay, NY | New York Independent System Operator (NYIS) | 1.1 GWh | Jan 2016 | Dec 2025 | Solar |
| Onondaga County- Jamesville | Tesla Inc. | Jamesville, NY | New York Independent System Operator (NYIS) | 2.3 GWh | Feb 2018 | Dec 2025 | Solar |
| Orange County Solar Farm (NY) | Tesla Inc. | Goshen, NY | ISO New England (ISNE) | 2.3 GWh | Apr 2017 | Dec 2025 | Solar |
| Oneida County- DPW | Tesla Inc. | Oriskany, NY | ISO New England (ISNE) | 1.4 GWh | Sep 2017 | Dec 2025 | Solar |
| Onondaga County - Oak Orchard WWTP | Tesla Inc. | Clay, NY | New York Independent System Operator (NYIS) | 2.5 GWh | Oct 2017 | Dec 2024 | Solar |
| Oneida Herkimer | WM Renewable Energy LLC | Boonville, NY | New York Independent System Operator (NYIS) | 25.3 GWh | Mar 2012 | Dec 2024 | Landfill Gas |