Packwood
Lewis County, Washington · EIA plant ID 3929 · Operator: Energy Northwest - Packwood
Nameplate28MWSummer 26 MW
Generators1in service
Net generation74GWh12 mo to Dec 2025
Capacity factor32%hydro units, summer MW
Heat rate—thermal plants only
First online1964
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 | 60.1 | 23.6% | — |
| 2002 | 83.5 | 32.9% | — |
| 2003 | 89.3 | 35.1% | — |
| 2004 | 98.2 | 38.6% | — |
| 2005 | 71.5 | 28.2% | — |
| 2006 | 99.7 | 39.3% | — |
| 2007 | 84.6 | 33.3% | — |
| 2008 | 87.6 | 34.4% | — |
| 2009 | 92.3 | 38.3% | — |
| 2010 | 95.5 | 41.9% | — |
| 2011 | 113.5 | 49.8% | — |
| 2012 | 116 | 50.8% | — |
| 2013 | 97.8 | 43.0% | — |
| 2014 | 128.3 | 56.4% | — |
| 2015 | 87.7 | 38.5% | — |
| 2016 | 96.5 | 42.3% | — |
| 2017 | 103.5 | 45.5% | — |
| 2018 | 87.5 | 38.4% | — |
| 2019 | 58.3 | 25.6% | — |
| 2020 | 95.7 | 41.9% | — |
| 2021 | 88.2 | 38.7% | — |
| 2022 | 87.8 | 38.6% | — |
| 2023 | 60.4 | 26.5% | — |
| 2024 | 63 | 27.6% | — |
| 2025 | 73.8 | 32.4% | — |
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 | 27.5 | 26 | Apr 1964 | Operating | — | coming soon |
Owner / operator
Operator: Energy Northwest - Packwood. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Energy Northwest - Packwood | 100.0% | 28 MW |
Nearby plants
Within 80 km.
| Tieton Dam Hydro Electric Project | 14 MW | 34.4 km |
| Crystal Mountain | 3 MW | 40.4 km |
| Cowlitz Falls | 70 MW | 43.8 km |
| Alder | 51 MW | 60.9 km |
| LaGrande | 64 MW | 63 km |
| Electron | 23 MW | 63.7 km |