- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
River Mill: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
River Mill
Power plant · Hydro
Key facts
Power plant · Hydroran 47% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1911
- Net generation, 2025
- 77,294 MWh
- Grid
- 57 kV to Portland General Electric Co (PGE)
- Location
- Clackamas County, Oregon
- Operated by
- Portland General Electric CoSourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 77,294
MWh - Fuel burned, 2025
- 263,834
MMBtu - Capacity factor, 2025
- 46.9
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 77,294 | 263,834 | 46.9% | — |
| 2024 | 99,102 | 338,136 | 60.0% | — |
| 2023 | 83,830 | 286,028 | 50.9% | — |
| 2022 | 104,242 | 355,675 | 63.3% | — |
| 2021 | 79,567 | 703,690 | 48.3% | — |
| 2020 | 84,426 | 740,162 | 51.1% | — |
| 2019 | 70,301 | 626,031 | 42.7% | — |
| 2018 | 88,007 | 801,216 | 53.4% | — |
| 2017 | 110,181 | 1,015,098 | 66.9% | — |
| 2016 | 105,219 | 971,382 | 63.7% | — |
| 2015 | 74,120 | 690,723 | 45.0% | — |
| 2014 | 104,995 | 998,502 | 63.7% | — |
| 2013 | 95,907 | 915,049 | 58.2% | — |
| 2012 | 117,175 | 1,115,038 | 71.0% | — |
| 2011 | 108,840 | 1,057,490 | 66.1% | — |
| 2010 | 113,007 | 1,102,496 | 68.6% | — |
| 2009 | 108,858 | 1,062,453 | 66.1% | — |
| 2008 | 113,517 | 1,118,597 | 68.7% | — |
| 2007 | 97,790 | 966,555 | 59.4% | — |
| 2006 | 106,798 | 1,059,329 | 64.8% | — |
| 2005 | 76,514 | 765,063 | 46.5% | — |
| 2004 | 106,021 | 1,062,542 | 64.2% | — |
| 2003 | 97,581 | 999,327 | 59.2% | — |
| 2002 | 99,446 | 1,011,664 | 60.4% | — |
| 2001 | 80,229 | 829,006 | 48.7% | — |
How these are worked out
Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.