Potter ValleyOut of service
Mendocino County, California · EIA plant ID 274 · Operator: Pacific Gas & Electric Co
Nameplate9MWSummer 9 MW
Generators3in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%hydro units, summer MW
Heat rate—thermal plants only
First online1910
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), hydro 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) |
|---|---|---|---|
| 2001 | 30.2 | 37.5% | — |
| 2002 | 34.5 | 42.9% | — |
| 2003 | 49.8 | 61.8% | — |
| 2004 | 43.9 | 54.3% | — |
| 2005 | 41.1 | 51.0% | — |
| 2006 | 38.2 | 47.3% | — |
| 2007 | 20.9 | 25.9% | — |
| 2008 | 23.1 | 28.6% | — |
| 2009 | 19.7 | 24.5% | — |
| 2010 | 27.3 | 33.9% | — |
| 2011 | 32.9 | 40.8% | — |
| 2012 | 21.2 | 26.2% | — |
| 2013 | 19.5 | 24.2% | — |
| 2014 | 11.3 | 14.0% | — |
| 2015 | 8.3 | 10.2% | — |
| 2016 | 8.3 | 10.3% | — |
| 2017 | 19.5 | 24.2% | — |
| 2018 | 13.1 | 16.3% | — |
| 2019 | 18.9 | 23.4% | — |
| 2020 | 13.2 | 16.3% | — |
| 2021 | 2.7 | 3.3% | — |
| 2022 | 0 | 0.0% | — |
| 2023 | 0 | 0.0% | — |
| 2024 | 0 | 0.0% | — |
| 2025 | 0 | 0.0% | — |
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 | Conventional Hydroelectric | HY | 4.4 | 4.5 | Feb 1939 | Operating (Out of service) | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 2 | 2 | Mar 1910 | Operating (Out of service) | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 3 | 2.7 | Sep 1917 | Operating (Out of service) | — | 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% | 9 MW |
Nearby plants
Within 80 km.
| East Road Storage Project | — | 13.7 km |
| Lake Mendocino | 4 MW | 19 km |
| Redemeyer Road Solar | 8 MW | 20.7 km |
| Kama 1 LLC | 2 MW | 41.3 km |
| Stony Gorge | 5 MW | 56.8 km |
| Indian Valley Dam Hydro Project | 3 MW | 60 km |