Onyx Asset Services Group power plants
Every generating plant EIA-860M files against Onyx Asset Services Group for 2026-07: 41 plants, 97 MW of nameplate capacity, across 13 states and 1 energy source.
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
- 41
- Nameplate capacity
- 97 MW
- States
- 13
- AZ, CA, CT, DE, HI, IL, KS, LA, MA, MD, NJ, NM, NY
- Energy sources
- 1
Onyx Asset Services Group plants by energy source
- Solar41 plants · 97 MW
Full list of Onyx Asset Services Group power plants
| Tucson - CAVSARPSolar Photovoltaic | Onyx Asset Services Group | Pima | 7.2 | 1 | 2025 | Operating |
| Marathon Petroleum - Robinson RefinerySolar Photovoltaic | Onyx Asset Services Group | Crawford | 5 | 1 | 2025 | Operating |
| Fort Polk (fka Johnson) - Chaffee EastSolar Photovoltaic | Onyx Asset Services Group | Vernon | 5 | 1 | 2025 | Operating |
| Middle DaisySolar Photovoltaic | Onyx Asset Services Group | Lea | 5 | 1 | 2017 | Operating |
| Toyota BoshokuSolar Photovoltaic | Onyx Asset Services Group | Lawrence | 4.8 | 1 | 2025 | Operating |
| Fort Polk (fka Johnson) - Chaffee WestSolar Photovoltaic | Onyx Asset Services Group | Vernon | 4.5 | 1 | 2025 | Operating |
| North TroySolar Photovoltaic | Onyx Asset Services Group | Rensselaer | 4 | 1 | 2024 | Operating |
| Onyx - Brockton Thatcher Landfill SolarSolar Photovoltaic | Onyx Asset Services Group | Plymouth | 3.7 | 1 | 2017 | Operating |
| Paso Robles - Municipal AirportSolar Photovoltaic | Onyx Asset Services Group | San Luis Obispo | 3 | 1 | 2024 | Operating |
| Stanley Black & DeckerSolar Photovoltaic | Onyx Asset Services Group | Hampden | 3 | 1 | 2025 | Operating |
| Amazon - SAN5Solar Photovoltaic | Onyx Asset Services Group | San Diego | 2.9 | 1 | 2025 | Operating |
| Pacific AviationSolar Photovoltaic | Onyx Asset Services Group | Los Angeles | 2.5 | 1 | 2025 | Operating |
| Onyx - Pembroke Landfill SolarSolar Photovoltaic | Onyx Asset Services Group | Plymouth | 2.4 | 1 | 2017 | Operating |
| APG New ChesapeakeSolar Photovoltaic | Onyx Asset Services Group | Harford | 2.3 | 1 | 2018 | Operating |
| Riley III - Site 6 Community SolarSolar Photovoltaic | Onyx Asset Services Group | Riley | 2.1 | 1 | 2025 | Operating |
| Ellington - 277 Sadds MillSolar Photovoltaic | Onyx Asset Services Group | Tolland | 2 | 1 | 2024 | Operating |
| Winchendon Landfill SolarSolar Photovoltaic | Onyx Asset Services Group | Worcester | 2 | 1 | 2018 | Operating |
| Onyx - Lamphear Road CSGSolar Photovoltaic | Onyx Asset Services Group | Oneida | 2 | 1 | 2016 | Operating |
| Onyx - Saratoga Springs Landfill Solar CSolar Photovoltaic | Onyx Asset Services Group | Saratoga | 2 | 1 | 2017 | Operating |
| BroadalbinSolar Photovoltaic | Onyx Asset Services Group | Fulton | 2 | 1 | 2018 | Operating |
| DuanesburgSolar Photovoltaic | Onyx Asset Services Group | Montgomery | 2 | 1 | 2018 | Operating |
| JohnstownSolar Photovoltaic | Onyx Asset Services Group | Fulton | 2 | 1 | 2018 | Operating |
| Sharon SpringsSolar Photovoltaic | Onyx Asset Services Group | Schoharie | 2 | 1 | 2018 | Operating |
| Amsterdam NorthSolar Photovoltaic | Onyx Asset Services Group | Montgomery | 2 | 1 | 2018 | Operating |
| Amsterdam SouthSolar Photovoltaic | Onyx Asset Services Group | Montgomery | 2 | 1 | 2018 | Operating |
| Barrett Farm Solar - Phase ISolar Photovoltaic | Onyx Asset Services Group | Windham | 1.7 | 1 | 2017 | Operating |
| APG Old BaysideSolar Photovoltaic | Onyx Asset Services Group | Harford | 1.7 | 1 | 2018 | Operating |
| BRE - Ritz Carlton KapaluaSolar Photovoltaic | Onyx Asset Services Group | Maui | 1.5 | 1 | 2025 | Operating |
| Legoland CA Phase ISolar Photovoltaic | Onyx Asset Services Group | San Diego | 1.4 | 1 | 2025 | Operating |
| Pima Community College NWSolar Photovoltaic | Onyx Asset Services Group | Pima | 1.3 | 1 | 2019 | Operating |
| Bystronic ManufacturingSolar Photovoltaic | Onyx Asset Services Group | Cook | 1.3 | 1 | 2025 | Operating |
| Corvias - Fort Riley IISolar Photovoltaic | Onyx Asset Services Group | Riley | 1.3 | 1 | 2022 | Operating |
| New Britain - 142 Deming RdSolar Photovoltaic | Onyx Asset Services Group | Hartford | 1.2 | 1 | 2025 | Operating |
| Onyx - Allen HarimSolar Photovoltaic | Onyx Asset Services Group | Sussex | 1.2 | 1 | 2017 | Operating |
| SeaWorld AquaticaSolar Photovoltaic | Onyx Asset Services Group | San Diego | 1.1 | 1 | 2018 | Operating |
| Oaks HOASolar Photovoltaic | Onyx Asset Services Group | Amador | 1 | 1 | 2025 | Operating |
| Manchester Community College EastSolar Photovoltaic | Onyx Asset Services Group | Hartford | 1 | 1 | 2018 | Operating |
| Manchester Community College NorthSolar Photovoltaic | Onyx Asset Services Group | Hartford | 1 | 1 | 2018 | Operating |
| Riley III - Site 12 Community SolarSolar Photovoltaic | Onyx Asset Services Group | Riley | 1 | 1 | 2025 | Operating |
| Jersey City DWPSolar Photovoltaic | Onyx Asset Services Group | Hudson | 1 | 1 | 2019 | Operating |
| Rialto - High SchoolSolar Photovoltaic | Onyx Asset Services Group | San Bernardino | 0.9 | 1 | 2017 | Operating |
Onyx Asset Services Group: FAQ
- How many power plants does Onyx Asset Services Group operate?
- EIA-860M lists 41 operating plants against “Onyx Asset Services Group” for 2026-07, totalling 97 MW of nameplate capacity in 13 states.
- Is Onyx Asset Services Group 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.