Stone Creek
Clackamas County, Oregon · EIA plant ID 7508 · Operator: Eugene Water & Electric Board
Nameplate12MWSummer 7 MW
Generators1in service
Net generation54GWh12 mo to Dec 2025
Capacity factor89%hydro units, summer MW
Heat rate—thermal plants only
First online1994
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) |
|---|---|---|---|
| 2003 | 35.5 | 37.8% | — |
| 2004 | 49.1 | 79.8% | — |
| 2005 | 33.3 | 54.3% | — |
| 2006 | 67.8 | 110.6% | — |
| 2007 | 65 | 106.0% | — |
| 2008 | 63.8 | 103.8% | — |
| 2009 | 64.2 | 104.7% | — |
| 2010 | 59.4 | 96.9% | — |
| 2011 | 79.6 | 129.8% | — |
| 2012 | 58.8 | 95.7% | — |
| 2013 | 62 | 101.1% | — |
| 2014 | 63.7 | 103.9% | — |
| 2015 | 49 | 79.9% | — |
| 2016 | 50.5 | 82.1% | — |
| 2017 | 61.5 | 100.3% | — |
| 2018 | 50.4 | 82.2% | — |
| 2019 | 42.6 | 69.4% | — |
| 2020 | 31.3 | 50.8% | — |
| 2021 | 37 | 60.4% | — |
| 2022 | 50.6 | 82.5% | — |
| 2023 | 46 | 75.0% | — |
| 2024 | 52.3 | 85.1% | — |
| 2025 | 54.4 | 88.7% | — |
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 | 12 | 7 | Jan 1994 | Operating | — | coming soon |
Owner / operator
Operator: Eugene Water & Electric Board. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Eugene Water & Electric Board | 100.0% | 12 MW |
Nearby plants
Within 80 km.
| Tualatin Battery Energy Storage System | — | 12.7 km |
| Oak Grove | 51 MW | 15.1 km |
| Timothy Lake Powerhouse | 1 MW | 33.8 km |
| North Fork | 41 MW | 35.7 km |
| Brightwood Solar, LLC | 10 MW | 37.2 km |
| Faraday | 37 MW | 39.8 km |