R C Kirkwood
Tuolumne County, California · EIA plant ID 382 · Operator: City & County of San Francisco
Nameplate133MWSummer 132 MW
Generators3in service
Net generation472GWh12 mo to Aug 2026
Capacity factor41%hydro units, summer MW
Heat rate—thermal plants only
First online1967
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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 | 505.8 | 47.4% | — |
| 2002 | 547.9 | 52.9% | — |
| 2003 | 527.4 | 50.9% | — |
| 2004 | 569.8 | 54.9% | — |
| 2005 | 667.1 | 64.4% | — |
| 2006 | 638.2 | 61.6% | — |
| 2007 | 402.3 | 38.9% | — |
| 2008 | 465.4 | 44.8% | — |
| 2009 | 438.9 | 42.4% | — |
| 2010 | 557.2 | 55.1% | — |
| 2011 | 673.1 | 66.5% | — |
| 2012 | 396.6 | 39.1% | — |
| 2013 | 431.4 | 42.6% | — |
| 2014 | 312.9 | 30.9% | — |
| 2015 | 264.7 | 26.2% | — |
| 2016 | 567.5 | 55.9% | — |
| 2017 | 524.3 | 51.8% | — |
| 2018 | 437.4 | 43.2% | — |
| 2019 | 455.8 | 45.1% | — |
| 2020 | 377.8 | 37.2% | — |
| 2021 | 322.5 | 31.9% | — |
| 2022 | 394.5 | 39.0% | — |
| 2023 | 473.9 | 46.8% | — |
| 2024 | 442 | 41.4% | — |
| 2025 | 400.3 | 34.7% | — |
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 | 45.4 | 45.4 | Feb 1967 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 45.4 | 44.3 | Feb 1967 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 42 | 42 | Sep 1987 | Operating | — | coming soon |
Owner / operator
Operator: City & County of San Francisco. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City & County of San Francisco | 100.0% | 133 MW |
Nearby plants
Within 80 km.
| Dion R Holm | 180 MW | 2.5 km |
| Moccasin | 104 MW | 31.3 km |
| Moccasin Low Head Hydro Project | 3 MW | 32.2 km |
| Sierra Pacific Sonora | 8 MW | 33.5 km |
| Phoenix | 2 MW | 37 km |
| Spring Gap | 6 MW | 37 km |