- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
Weeks Falls: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Weeks Falls
Power plant · Hydro
Key facts
Power plant · Hydroran 28% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1990
- Net generation, 2025
- 10,657 MWh
- Grid
- 34 kV to Puget Sound Energy Inc (PSEI)
- Location
- King County, Washington
- Operated by
- Eagle Creek Renewable Energy, LLC
Operations
- Net generation, 2025
- 10,657
MWh - Fuel burned, 2025
- 36,362
MMBtu - Capacity factor, 2025
- 28.3
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 10,657 | 36,362 | 28.3% | — |
| 2024 | 13,102 | 44,704 | 34.7% | — |
| 2023 | 8,798 | 30,018 | 23.4% | — |
| 2022 | 12,416 | 42,364 | 33.0% | — |
| 2021 | 14,405 | 127,397 | 38.2% | — |
| 2020 | 15,716 | 137,782 | 41.6% | — |
| 2019 | 9,494 | 84,544 | 25.2% | — |
| 2018 | 14,593 | 132,854 | 38.7% | — |
| 2017 | 13,647 | 125,731 | 36.2% | — |
| 2016 | 11,111 | 102,577 | 29.4% | — |
| 2015 | 8,512 | 79,324 | 22.6% | — |
| 2014 | 16,407 | 156,029 | 43.6% | — |
| 2013 | 14,707 | 140,316 | 39.0% | — |
| 2012 | 17,114 | 162,858 | 45.3% | — |
| 2011 | 15,834 | 153,843 | 42.0% | — |
| 2010 | 13,234 | 129,111 | 35.1% | — |
| 2009 | 12,348 | 120,516 | 32.8% | — |
| 2008 | 11,994 | 118,190 | 31.8% | — |
| 2007 | 13,390 | 132,347 | 35.5% | — |
| 2006 | 12,691 | 125,882 | 33.7% | — |
| 2005 | 8,128 | 81,272 | 21.6% | — |
| 2004 | 11,662 | 116,877 | 30.9% | — |
| 2003 | 11,826 | 121,110 | 31.4% | — |
| 2002 | 12,765 | 129,858 | 33.9% | — |
| 2001 | 10,907 | 112,702 | 29.0% | — |
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.