Hells Canyon
Wallowa County, Oregon · EIA plant ID 3013 · Operator: Idaho Power Co
Nameplate411MWSummer 453 MW
Generators3in service
Net generation2,025GWh12 mo to Dec 2025
Capacity factor51%hydro units, summer MW
Heat rate—thermal plants only
First online1967
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 | 1,385.3 | 43.9% | — |
| 2002 | 1,620.7 | 51.3% | — |
| 2003 | 1,629.7 | 48.9% | — |
| 2004 | 1,623.9 | 48.6% | — |
| 2005 | 1,589.5 | 47.7% | — |
| 2006 | 2,548.1 | 76.4% | — |
| 2007 | 1,560.3 | 46.8% | — |
| 2008 | 1,885.3 | 56.4% | — |
| 2009 | 2,051.3 | 52.6% | — |
| 2010 | 1,891.4 | 48.5% | — |
| 2011 | 2,798.3 | 71.8% | — |
| 2012 | 2,084.2 | 53.3% | — |
| 2013 | 1,422.3 | 36.5% | — |
| 2014 | 1,623.1 | 41.6% | — |
| 2015 | 1,461.4 | 37.5% | — |
| 2016 | 1,792.7 | 45.9% | — |
| 2017 | 2,514.4 | 64.5% | — |
| 2018 | 2,194.9 | 56.3% | — |
| 2019 | 2,213.3 | 56.8% | — |
| 2020 | 1,798.6 | 46.0% | — |
| 2021 | 1,408.6 | 37.9% | — |
| 2022 | 1,445.7 | 37.2% | — |
| 2023 | 1,789.8 | 46.3% | — |
| 2024 | 1,925.5 | 50.2% | — |
| 2025 | 2,025.1 | 51.0% | — |
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 | 130.5 | 151.2 | Dec 1967 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 130.5 | 157.2 | Dec 1967 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 150.1 | 144.7 | Oct 1967 | Operating | — | coming soon |
Owner / operator
Operator: Idaho Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Idaho Power Co | 100.0% | 411 MW |
Nearby plants
Within 80 km.
| El Dorado Hydro Elk Creek | 3 MW | 30.3 km |
| Oxbow (OR) | 190 MW | 32.1 km |
| Wallowa Falls | 1 MW | 40.2 km |
| Tamarack Energy Partnership | 6 MW | 40.5 km |
| Brownlee | 675 MW | 47.8 km |