Thermalito Diverson Dam
Butte County, California · EIA plant ID 7129 · Operator: California Dept. of Water Resources
Nameplate3MWSummer 3 MW
Generators1in service
Net generation10GWh12 mo to Dec 2025
Capacity factor39%hydro units, summer MW
Heat rate—thermal plants only
First online1987
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 | 21 | 79.8% | — |
| 2002 | 18.9 | 72.0% | — |
| 2003 | 23.1 | 88.0% | — |
| 2004 | 20.5 | 77.6% | — |
| 2005 | 14.2 | 53.9% | — |
| 2006 | 8.7 | 33.3% | — |
| 2007 | 19 | 72.3% | — |
| 2008 | 13 | 49.3% | — |
| 2009 | 22.7 | 86.3% | — |
| 2010 | 9.2 | 35.0% | — |
| 2011 | 11.3 | 43.1% | — |
| 2012 | 21 | 79.7% | — |
| 2013 | 16.2 | 61.6% | — |
| 2014 | 19.5 | 74.0% | — |
| 2015 | 19.9 | 75.9% | — |
| 2016 | 20.3 | 77.1% | — |
| 2017 | 13 | 49.4% | — |
| 2018 | 20.5 | 77.9% | — |
| 2019 | 16.2 | 61.6% | — |
| 2020 | 13.2 | 50.3% | — |
| 2021 | 10.9 | 41.3% | — |
| 2022 | 19.8 | 75.3% | — |
| 2023 | 16.5 | 62.6% | — |
| 2024 | 19.2 | 73.0% | — |
| 2025 | 10.3 | 39.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| TD1 | Conventional Hydroelectric | HY | 3.4 | 3 | Jul 1987 | Operating | — | coming soon |
Owner / operator
Operator: California Dept. of Water Resources. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| California Dept. of Water Resources | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| Oroville Cogeneration LP | 8 MW | 4.3 km |
| Kelly Ridge | 10 MW | 4.7 km |
| Edward C Hyatt | 644 MW | 4.9 km |
| Thermalito | 115 MW | 7.3 km |
| Butte College Main Campus Solar | 4 MW | 15.7 km |
| Lime Saddle | retired | 19 km |