John Day
Sherman County, Oregon · EIA plant ID 3082 · Operator: USACE Northwestern Division
Nameplate2,160MWSummer 2,052 MW
Generators16in service
Net generation8,010GWh12 mo to Aug 2026
Capacity factor45%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 | 7,097.2 | 32.6% | — |
| 2002 | 8,997.7 | 41.3% | — |
| 2003 | 8,573.1 | 39.4% | — |
| 2004 | 8,331.6 | 43.9% | — |
| 2005 | 8,177.7 | 43.2% | — |
| 2006 | 9,418.8 | 49.8% | — |
| 2007 | 8,928.9 | 47.2% | — |
| 2008 | 8,763.9 | 46.2% | — |
| 2009 | 8,417.5 | 44.5% | — |
| 2010 | 7,655.7 | 40.5% | — |
| 2011 | 11,619.7 | 61.4% | — |
| 2012 | 10,445.9 | 55.1% | — |
| 2013 | 8,893 | 47.0% | — |
| 2014 | 9,472.8 | 50.1% | — |
| 2015 | 8,679.5 | 45.9% | — |
| 2016 | 9,171.8 | 50.7% | — |
| 2017 | 10,507 | 58.3% | — |
| 2018 | 9,192.9 | 51.0% | — |
| 2019 | 7,643.8 | 42.4% | — |
| 2020 | 8,459.2 | 46.8% | — |
| 2021 | 7,332.6 | 40.8% | — |
| 2022 | 8,831.5 | 49.1% | — |
| 2023 | 6,793.3 | 37.8% | — |
| 2024 | 6,956.3 | 38.6% | — |
| 2025 | 7,589 | 42.2% | — |
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 | 135 | 135 | Aug 1968 | Operating (Out of service, expected back within the year) | — | coming soon |
| 10 | Conventional Hydroelectric | HY | 135 | 135 | Sep 1969 | Operating (Out of service) | — | coming soon |
| 11 | Conventional Hydroelectric | HY | 135 | 118 | Mar 1970 | Operating | — | coming soon |
| 12 | Conventional Hydroelectric | HY | 135 | 118 | May 1970 | Operating | — | coming soon |
| 13 | Conventional Hydroelectric | HY | 135 | 135 | Dec 1970 | Operating | — | coming soon |
| 14 | Conventional Hydroelectric | HY | 135 | 118 | Jan 1971 | Operating (Out of service, expected back within the year) | — | coming soon |
| 15 | Conventional Hydroelectric | HY | 135 | 135 | Oct 1971 | Operating | — | coming soon |
| 16 | Conventional Hydroelectric | HY | 135 | 135 | Dec 1971 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 135 | 135 | Sep 1968 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 135 | 129 | Nov 1968 | Operating (Out of service, expected back within the year) | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 135 | 118 | Dec 1968 | Operating | — | coming soon |
| 5 | Conventional Hydroelectric | HY | 135 | 135 | Feb 1969 | Operating | — | coming soon |
| 6 | Conventional Hydroelectric | HY | 135 | 135 | Mar 1969 | Operating | — | coming soon |
| 7 | Conventional Hydroelectric | HY | 135 | 135 | Apr 1969 | Operating | — | coming soon |
| 8 | Conventional Hydroelectric | HY | 135 | 118 | Jun 1969 | Operating (Out of service, expected back within the year) | — | coming soon |
| 9 | Conventional Hydroelectric | HY | 135 | 118 | Aug 1969 | Operating | — | coming soon |
Owner / operator
Operator: USACE Northwestern Division. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| USACE Northwestern Division | 100.0% | 2,160 MW |
Nearby plants
Within 80 km.
| Linden Wind Energy Project | 50 MW | 7.6 km |
| Biglow Canyon Wind Farm | 450 MW | 9.9 km |
| Windy Flats Wind Project | 262 MW | 10.9 km |
| PaTu Wind Farm LLC | 9 MW | 13 km |
| Biglow Solar Generation and BESS | — | 13.4 km |
| Goldendale Generating Station | 303 MW | 15.1 km |