O'Neill Creek Solar
Washington County, Oregon · EIA plant ID 63235 · Operator: O'Neill Creek Solar LLC
Nameplate2MWSummer 2 MW
Generators1in service
Net generation3GWh12 mo to Dec 2025
Capacity factor18%solar units, summer MW
Heat rate—thermal plants only
First online2019
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), solar 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) |
|---|---|---|---|
| 2019 | 0.3 | 10.0% | — |
| 2020 | 3.7 | 19.1% | — |
| 2021 | 3.9 | 20.5% | — |
| 2022 | 3.9 | 20.3% | — |
| 2023 | 3.9 | 20.2% | — |
| 2024 | 3.4 | 17.4% | — |
| 2025 | 3.4 | 17.6% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| OCPV1 | Solar Photovoltaic | PV | 2.2 | 2.2 | Nov 2019 | Operating | — | coming soon |
Owner / operator
Operator: O'Neill Creek Solar LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| O'Neill Creek Solar LLC | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| MilfordSolar OR | 3 MW | 12.5 km |
| Sesqui-C Solar (CSG) | 3 MW | 16.7 km |
| Constable BESS | 75 MW | 17.4 km |
| OR - Green Key - Gun Club | 3 MW | 24.5 km |
| Durham AWTF | 2 MW | 29.4 km |
| Coffee Creek BESS | 17 MW | 30.8 km |