North Fork
Clackamas County, Oregon · EIA plant ID 3047 · Operator: Portland General Electric Co
Nameplate41MWSummer 58 MW
Generators2in service
Net generation164GWh12 mo to Dec 2025
Capacity factor32%hydro units, summer MW
Heat rate—thermal plants only
First online1958
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 | 142 | 30.0% | — |
| 2002 | 170.2 | 36.0% | — |
| 2003 | 160.6 | 31.6% | — |
| 2004 | 170 | 33.4% | — |
| 2005 | 138.8 | 27.3% | — |
| 2006 | 214 | 42.1% | — |
| 2007 | 183.2 | 36.0% | — |
| 2008 | 212.1 | 41.6% | — |
| 2009 | 203.9 | 40.1% | — |
| 2010 | 207.8 | 40.9% | — |
| 2011 | 205.5 | 40.4% | — |
| 2012 | 251.1 | 49.3% | — |
| 2013 | 176.8 | 34.8% | — |
| 2014 | 204.7 | 40.3% | — |
| 2015 | 134.5 | 26.5% | — |
| 2016 | 185.9 | 36.5% | — |
| 2017 | 227.1 | 44.7% | — |
| 2018 | 159.9 | 31.5% | — |
| 2019 | 132.8 | 26.1% | — |
| 2020 | 163.7 | 32.1% | — |
| 2021 | 167.2 | 32.9% | — |
| 2022 | 201.4 | 39.6% | — |
| 2023 | 155.1 | 30.5% | — |
| 2024 | 186.7 | 36.6% | — |
| 2025 | 164 | 32.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 19.2 | 27 | Dec 1958 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 21.6 | 31 | Nov 1958 | Operating | — | coming soon |
Owner / operator
Operator: Portland General Electric Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Portland General Electric Co | 100.0% | 41 MW |
Nearby plants
Within 80 km.
| Faraday | 37 MW | 4.2 km |
| Day Hill Solar, LLC | 2 MW | 4.8 km |
| OR - Solops - SPI 18 - Clayfield | 3 MW | 5.6 km |
| River Mill | 19 MW | 8.4 km |
| Firwood Solar, LLC | 10 MW | 12.1 km |
| Tickle Creek Solar | 2 MW | 14.7 km |