Onsite power plants
Every generating plant EIA-860M files against Onsite for 2026-07: 39 plants, 128 MW of nameplate capacity, across 15 states and 3 energy sources.
EIA files this entity as “Onsite Partners, LLC”.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Plants
- 39
- Nameplate capacity
- 128 MW
- States
- 15
- CO, CT, FL, IA, IL, MN, NE, NJ, NY, OH, PA, RI, VA, VT, WI
- Energy sources
- 3
Onsite plants by energy source
- Battery2 plants · 20 MW
- Natural gas6 plants · 23 MW
- Solar31 plants · 85 MW
Full list of Onsite power plants
| Shelby BESSBatteries | Onsite Partners, LLC | Richland | 10.1 | 1 | 2025 | Operating |
| Martinsville BESSBatteries | Onsite Partners, LLC | Henry | 10.1 | 1 | 2022 | Operating |
| Clyde Peaking EngineNatural Gas Internal Combustion Engine | Onsite Partners, LLC | Sandusky | 10 | 1 | 2020 | Operating |
| AEP Jacksonville Solar ProjectSolar Photovoltaic | Onsite Partners, LLC | Duval | 7.1 | 1 | 2017 | Operating |
| Brainerd AirportSolar Photovoltaic | Onsite Partners, LLC | Crow Wing | 5.8 | 1 | 2022 | Operating |
| Sherburne Community SolarSolar Photovoltaic | Onsite Partners, LLC | Sherburne | 5 | 1 | 2018 | Operating |
| Pine HillSolar Photovoltaic | Onsite Partners, LLC | Providence | 5 | 1 | 2020 | Operating |
| Lady Slipper Solar Array CSGSolar Photovoltaic | Onsite Partners, LLC | Goodhue | 4.5 | 1 | 2019 | Operating |
| Vilas Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Baca | 4 | 1 | 2017 | Operating |
| Rice Lake Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Barron | 3.8 | 1 | 2021 | Operating |
| Tosoh SMDNatural Gas Internal Combustion Engine | Onsite Partners, LLC | Franklin | 3.5 | 1 | 2023 | Operating |
| LabCorp EngineNatural Gas Internal Combustion Engine | Onsite Partners, LLC | Somerset | 3.2 | 1 | 2019 | Operating |
| Imboden Solar GardenSolar Photovoltaic | Onsite Partners, LLC | Adams | 3 | 2 | 2018 | Operating |
| Porter Way Community Solar GardenSolar Photovoltaic | Onsite Partners, LLC | Carver | 3 | 1 | 2018 | Operating |
| Ohio Northern University Solar SiteSolar Photovoltaic | Onsite Partners, LLC | Hardin | 3 | 2 | 2016 | Operating |
| TJX EngineNatural Gas Internal Combustion Engine | Onsite Partners, LLC | Philadelphia | 3 | 1 | 2021 | Operating |
| Barron Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Barron | 3 | 1 | 2021 | Operating |
| Clyde Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Sandusky | 2.8 | 1 | 2016 | Operating |
| Rice Lake IISolar Photovoltaic | Onsite Partners, LLC | Barron | 2.8 | 1 | 2024 | Operating |
| San Luis Valley Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Saguache | 2.7 | 1 | 2017 | Operating |
| Cold River Road SolarSolar Photovoltaic | Onsite Partners, LLC | Rutland | 2.3 | 1 | 2016 | Operating |
| Trout Creek SolarSolar Photovoltaic | Onsite Partners, LLC | Chaffee | 2 | 1 | 2019 | Operating |
| Canandaigua Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Ontario | 2 | 1 | 2016 | Operating |
| Bloom-Altice Fuel CellOther Natural Gas | Onsite Partners, LLC | Nassau | 2 | 1 | 2020 | Operating |
| North Smithfield Solar Power 1Solar Photovoltaic | Onsite Partners, LLC | Providence | 2 | 1 | 2018 | Operating |
| Spooner Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Washburn | 2 | 1 | 2019 | Operating |
| Garnet Solar (NY)Solar Photovoltaic | Onsite Partners, LLC | Warren | 1.9 | 1 | 2018 | Operating |
| Denison Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Licking | 1.9 | 1 | 2017 | Operating |
| Shelby Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Richland | 1.9 | 1 | 2019 | Operating |
| Camden CSD Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Oneida | 1.8 | 1 | 2017 | Operating |
| Madison CountySolar Photovoltaic | Onsite Partners, LLC | Madison | 1.8 | 1 | 2017 | Operating |
| Bloomfield Municipal Utilities SolarSolar Photovoltaic | Onsite Partners, LLC | Davis | 1.6 | 1 | 2019 | Operating |
| Quincy II Solar GardenSolar Photovoltaic | Onsite Partners, LLC | Arapahoe | 1.5 | 1 | 2018 | Operating |
| Trinity College Fuel CellOther Natural Gas | Onsite Partners, LLC | Hartford | 1.4 | 1 | 2018 | Operating |
| Galesburg Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Henderson | 1.4 | 1 | 2020 | Operating |
| PNA Rossford Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Wood | 1.4 | 1 | 2022 | Operating |
| Canandaigua Westbrook Solar ArraySolar Photovoltaic | Onsite Partners, LLC | Ontario | 1.3 | 1 | 2017 | Operating |
| Letchworth Solar ProjectSolar Photovoltaic | Onsite Partners, LLC | Wyoming | 1.2 | 1 | 2017 | Operating |
| GIUD Solar ISolar Photovoltaic | Onsite Partners, LLC | Hall | 1 | 1 | 2018 | Operating |
Onsite: FAQ
- How many power plants does Onsite operate?
- EIA-860M lists 39 operating plants against “Onsite Partners, LLC” for 2026-07, totalling 128 MW of nameplate capacity in 15 states.
- Is Onsite the owner of these plants?
- EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.
- Why are affiliates listed separately?
- Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.