PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/58370
EIA plant 58370
Gridley · Butte · CA
Gridley Main
Operated by Altus Power America Management, LLC
Published location
Where is Gridley Main?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
39.373333, -121.684167
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Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 56 MWh |
| 2 | 79 MWh |
| 3 | 100 MWh |
| 4 | 128 MWh |
| 5 | 201 MWh |
| 6 | 231 MWh |
| 7 | 217 MWh |
| 8 | 199 MWh |
| 9 | 179 MWh |
| 10 | 138 MWh |
| 11 | 79 MWh |
| 12 | 33 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| GEN1 | Solar Photovoltaic | SUN | 1 | OP |
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Identity, technology and limitations
EIA plant ID
58370
Sector
IPP Non-CHP
Water source
Unavailable
Data edition
2024-final