Cottonwood
Inyo County, California · EIA plant ID 394 · Operator: Los Angeles Department of Water & Power
Nameplate2MWSummer 2 MW
Generators2in service
Net generation3GWh12 mo to Dec 2025
Capacity factor16%hydro units, summer MW
Heat rate—thermal plants only
First online1908
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 | 7.1 | 29.1% | — |
| 2002 | 3.8 | 15.5% | — |
| 2003 | 5.8 | 23.5% | — |
| 2004 | 6.3 | 25.6% | — |
| 2005 | 8.3 | 34.0% | — |
| 2006 | 7 | 28.4% | — |
| 2007 | 2.9 | 11.8% | — |
| 2008 | 8.5 | 40.3% | — |
| 2009 | 8 | 37.9% | — |
| 2010 | 12.3 | 58.4% | — |
| 2011 | 11.5 | 54.6% | — |
| 2012 | 3.2 | 15.3% | — |
| 2013 | 0.5 | 2.5% | — |
| 2014 | 1.6 | 7.4% | — |
| 2015 | 1.1 | 5.2% | — |
| 2016 | 1.6 | 7.6% | — |
| 2017 | 4.2 | 19.8% | — |
| 2018 | 2.8 | 13.2% | — |
| 2019 | 1 | 4.9% | — |
| 2020 | 0.2 | 0.9% | — |
| 2021 | 0.9 | 4.2% | — |
| 2022 | 1.1 | 5.1% | — |
| 2023 | 1.3 | 6.1% | — |
| 2024 | 2.1 | 10.2% | — |
| 2025 | 3.4 | 16.1% | — |
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 | 0.8 | 1.2 | Nov 1908 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 0.8 | 1.2 | Oct 1909 | Operating | — | coming soon |
Owner / operator
Operator: Los Angeles Department of Water & Power. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Los Angeles Department of Water & Power | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Owens Valley Solar Project 11 | 1 MW | 18.9 km |
| Munro Valley Solar | 4 MW | 20.3 km |
| Haiwee Pumped Storage Project | — | 24.5 km |
| Haiwee | 6 MW | 37.9 km |
| Coso Finance Partners | 92 MW | 50.3 km |
| Coso Power Developers | 90 MW | 52.3 km |