Chelan
Chelan County, Washington · EIA plant ID 6424 · Operator: PUD No 1 of Chelan County
Nameplate59MWSummer 62 MW
Generators2in service
Net generation325GWh12 mo to Dec 2025
Capacity factor60%hydro units, summer MW
Heat rate—thermal plants only
First online1927
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 | 227.3 | 54.0% | — |
| 2002 | 419.7 | 99.8% | — |
| 2003 | 369.1 | 87.8% | — |
| 2004 | 412.1 | 97.7% | — |
| 2005 | 323.9 | 77.0% | — |
| 2006 | 417.6 | 99.3% | — |
| 2007 | 430.8 | 102.5% | — |
| 2008 | 376.9 | 89.4% | — |
| 2009 | 308.6 | 64.1% | — |
| 2010 | 387.4 | 71.3% | — |
| 2011 | 453.4 | 83.4% | — |
| 2012 | 397.6 | 72.9% | — |
| 2013 | 415.7 | 76.4% | — |
| 2014 | 398.2 | 73.2% | — |
| 2015 | 412.5 | 75.8% | — |
| 2016 | 442.8 | 81.2% | — |
| 2017 | 433.7 | 79.7% | — |
| 2018 | 343.7 | 63.2% | — |
| 2019 | 326.5 | 60.0% | — |
| 2020 | 377.5 | 69.2% | — |
| 2021 | 405.6 | 74.6% | — |
| 2022 | 419.7 | 77.2% | — |
| 2023 | 305.8 | 56.2% | — |
| 2024 | 328 | 60.1% | — |
| 2025 | 325.2 | 59.8% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| A-1 | Conventional Hydroelectric | HY | 29.6 | 31.4 | Sep 1927 | Operating | — | coming soon |
| A-2 | Conventional Hydroelectric | HY | 29.6 | 30.7 | Aug 1928 | Operating | — | coming soon |
Owner / operator
Operator: PUD No 1 of Chelan County. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| PUD No 1 of Chelan County | 100.0% | 59 MW |
Nearby plants
Within 80 km.
| Wells | 867 MW | 16.7 km |
| Chief Joseph | 2,456 MW | 33 km |
| Rocky Reach | 1,349 MW | 39.6 km |
| Rock Island | 629 MW | 54.6 km |
| Orion - Helion | — | 55.8 km |
| Main Canal Headworks | 27 MW | 58.7 km |