Owyhee Dam Power Project
Malheur County, Oregon · EIA plant ID 50361 · Operator: Owyhee Irrigation District
Nameplate5MWSummer 5 MW
Generators1in service
Net generation28GWh12 mo to Dec 2025
Capacity factor64%hydro units, summer MW
Heat rate—thermal plants only
First online1985
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 | 16.8 | 46.8% | — |
| 2002 | 18.3 | 48.6% | — |
| 2003 | 11.3 | 44.9% | — |
| 2004 | 18.5 | 73.4% | — |
| 2005 | 19 | 75.6% | — |
| 2006 | 13.9 | 55.1% | — |
| 2007 | 23.9 | 93.9% | — |
| 2008 | 20.1 | 79.0% | — |
| 2009 | 19.1 | 75.3% | — |
| 2010 | 17.7 | 69.6% | — |
| 2011 | 23.3 | 91.6% | — |
| 2012 | 19.8 | 77.9% | — |
| 2013 | 11.4 | 45.0% | — |
| 2014 | 10.1 | 39.9% | — |
| 2015 | 8.5 | 33.5% | — |
| 2016 | 13.4 | 52.5% | — |
| 2017 | 27.9 | 109.9% | — |
| 2018 | 13.2 | 51.9% | — |
| 2019 | 21.9 | 86.1% | — |
| 2020 | 21.4 | 83.9% | — |
| 2021 | 10.2 | 40.2% | — |
| 2022 | 10.8 | 42.3% | — |
| 2023 | 13.7 | 31.2% | — |
| 2024 | 27.6 | 62.8% | — |
| 2025 | 28.2 | 64.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | HY | 5 | 5 | Aug 1985 | Operating | — | coming soon |
Owner / operator
Operator: Owyhee Irrigation District. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Owyhee Irrigation District | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Tunnel 1 Power Project | 9 MW | 0.9 km |
| Michell Butte Power Project | 2 MW | 16.1 km |
| Open Range Solar Center, LLC | 10 MW | 22.4 km |
| Fargo Drop | 1 MW | 27.7 km |
| Grove Solar Center, LLC | 6 MW | 34.6 km |
| Vale Air Solar Center, LLC | 10 MW | 36 km |