Guernsey Solar Station
Kings County, California · EIA plant ID 57891 · Operator: Pacific Gas & Electric Co
Nameplate20MWSummer 20 MW
Generators1in service
Net generation22GWh12 mo to Dec 2025
Capacity factor12%solar units, summer MW
Heat rate—thermal plants only
First online2013
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), solar units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2013 | 11.5 | 15.6% | — |
| 2014 | 46.3 | 26.5% | — |
| 2015 | 46.2 | 26.4% | — |
| 2016 | 45.9 | 26.1% | — |
| 2017 | 44.1 | 25.2% | — |
| 2018 | 43.7 | 24.9% | — |
| 2019 | 43.1 | 24.6% | — |
| 2020 | 41.8 | 23.8% | — |
| 2021 | 38.9 | 22.2% | — |
| 2022 | 31.3 | 17.8% | — |
| 2023 | 24.2 | 13.8% | — |
| 2024 | 22.7 | 12.9% | — |
| 2025 | 21.5 | 12.3% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Solar Photovoltaic | PV | 20 | 20 | Aug 2013 | Operating | — | coming soon |
Owner / operator
Operator: Pacific Gas & Electric Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Pacific Gas & Electric Co | 100.0% | 20 MW |
Nearby plants
Within 80 km.
| Verwey-Hanford Dairy Digester #2 | 1 MW | 3.6 km |
| Verwey-Hanford Dairy Digester #3 | 1 MW | 3.6 km |
| Verwey-Hanford Dairy Digester #1 | 1 MW | 3.6 km |
| Corcoran Solar 3 | 20 MW | 6 km |
| Corcoran Solar 2 | 20 MW | 6.6 km |
| Corcoran Solar | 20 MW | 7.5 km |