Threemile Canyon
Morrow County, Oregon · EIA plant ID 56933 · Operator: Threemile Canyon Wind I
Nameplate10MWSummer 10 MW
Generators1in service
Net generation18GWh12 mo to Dec 2025
Capacity factor20%wind units, summer MW
Heat rate—thermal plants only
First online2009
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), wind 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) |
|---|---|---|---|
| 2009 | 8.1 | 18.6% | — |
| 2010 | 20.7 | 23.9% | — |
| 2011 | 25.1 | 29.0% | — |
| 2012 | 22.7 | 26.2% | — |
| 2013 | 22.6 | 26.1% | — |
| 2014 | 23.1 | 26.6% | — |
| 2015 | 19.1 | 22.1% | — |
| 2016 | 20.6 | 23.6% | — |
| 2017 | 18.8 | 21.7% | — |
| 2018 | 22.5 | 26.0% | — |
| 2019 | 19.1 | 22.1% | — |
| 2020 | 25.2 | 29.0% | — |
| 2021 | 22.9 | 26.4% | — |
| 2022 | 20 | 23.0% | — |
| 2023 | 19.5 | 22.5% | — |
| 2024 | 22.4 | 25.8% | — |
| 2025 | 17.8 | 20.5% | — |
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 | Onshore Wind Turbine | WT | 9.9 | 9.9 | Jul 2009 | Operating | — | vestas V82-1.65 |
Owner / operator
Operator: Threemile Canyon Wind I. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Threemile Canyon Wind I | 100.0% | 10 MW |
Nearby plants
Within 80 km.
| Threemile Digester | retired | 4.7 km |
| Willow Creek Energy Center | 72 MW | 4.9 km |
| Carty Generating Station | 500 MW | 10 km |
| Boardman | retired | 10.2 km |
| Horseshoe Bend Wind LLC | 290 MW | 11.4 km |
| South Hurlburt Wind LLC | 290 MW | 11.6 km |