Edward C Hyatt
Butte County, California · EIA plant ID 437 · Operator: California Dept. of Water Resources
Nameplate644MWSummer 743 MW
Generators6in service
Net generation2,155GWh12 mo to Aug 2026
Capacity factor47%hydro units, summer MW
Heat rate—thermal plants only
First online1968
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 | 876.7 | 24.7% | — |
| 2002 | 1,094.5 | 31.0% | — |
| 2003 | 1,783.8 | 50.2% | — |
| 2004 | 1,995.6 | 56.0% | — |
| 2005 | 1,829.7 | 51.5% | — |
| 2006 | 3,117.8 | 87.7% | — |
| 2007 | 1,808 | 51.1% | — |
| 2008 | 849.7 | 23.8% | — |
| 2009 | 1,258.7 | 35.4% | — |
| 2010 | 1,377.1 | 38.7% | — |
| 2011 | 1,922.5 | 54.1% | — |
| 2012 | 1,434.6 | 40.2% | — |
| 2013 | 1,489.6 | 41.9% | — |
| 2014 | 652.6 | 18.4% | — |
| 2015 | 572.2 | 16.1% | — |
| 2016 | 1,703.4 | 47.8% | — |
| 2017 | 2,375.5 | 66.8% | — |
| 2018 | 1,291.4 | 36.3% | — |
| 2019 | 2,662.8 | 74.9% | — |
| 2020 | 1,174.1 | 32.9% | — |
| 2021 | 288.7 | 8.1% | — |
| 2022 | 929.3 | 26.1% | — |
| 2023 | 1,454.1 | 40.9% | — |
| 2024 | 2,352.2 | 66.0% | — |
| 2025 | 1,952.8 | 43.1% | — |
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 | 117 | 135.3 | Mar 1968 | Operating | — | coming soon |
| 2 | Hydroelectric Pumped Storage | PS | 97.7 | 112.4 | Nov 1968 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 117 | 135.3 | Jun 1968 | Operating | — | coming soon |
| 4 | Hydroelectric Pumped Storage | PS | 97.7 | 112.4 | Dec 1968 | Operating | — | coming soon |
| 5 | Conventional Hydroelectric | HY | 117 | 135.3 | Aug 1968 | Operating | — | coming soon |
| 6 | Hydroelectric Pumped Storage | PS | 97.7 | 112.4 | Feb 1969 | 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% | 644 MW |
Nearby plants
Within 80 km.
| Kelly Ridge | 10 MW | 1.2 km |
| Thermalito Diverson Dam | 3 MW | 4.9 km |
| Oroville Cogeneration LP | 8 MW | 8.3 km |
| Thermalito | 115 MW | 12.2 km |
| Kanaka | retired | 16.9 km |
| Butte College Main Campus Solar | 4 MW | 17.5 km |