- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
Gem State: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Gem State
Power plant · Hydro
Key facts
Power plant · Hydroran 57% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1988
- Net generation, 2025
- 117,220 MWh
- Grid
- 161 kV to City of Idaho Falls - (ID) (PACE)
- Location
- Bonneville County, Idaho
- Operated by
- City of Idaho Falls - (ID)SourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 117,220
MWh - Fuel burned, 2025
- 399,955
MMBtu - Capacity factor, 2025
- 57.2
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 117,220 | 399,955 | 57.2% | — |
| 2024 | 108,516 | 370,255 | 52.8% | — |
| 2023 | 104,112 | 355,229 | 50.8% | — |
| 2022 | 101,546 | 346,475 | 49.5% | — |
| 2021 | 110,764 | 979,596 | 54.0% | — |
| 2020 | 78,479 | 688,024 | 38.2% | — |
| 2019 | 130,683 | 1,163,732 | 63.7% | — |
| 2018 | 144,613 | 1,316,556 | 70.5% | — |
| 2017 | 147,468 | 1,358,623 | 71.9% | — |
| 2016 | 116,563 | 1,076,110 | 56.7% | — |
| 2015 | 117,470 | 1,094,704 | 57.3% | — |
| 2014 | 123,525 | 1,174,722 | 60.3% | — |
| 2013 | 113,833 | 1,086,081 | 55.5% | — |
| 2012 | 167,068 | 1,589,818 | 81.3% | — |
| 2011 | 123,970 | 1,204,493 | 60.5% | — |
| 2010 | 108,210 | 1,055,698 | 52.8% | — |
| 2009 | 118,731 | 1,158,814 | 57.9% | — |
| 2008 | 120,378 | 1,186,204 | 58.6% | — |
| 2007 | 110,135 | 1,088,575 | 53.7% | — |
| 2006 | 127,143 | 1,261,133 | 62.0% | — |
| 2005 | 98,391 | 983,812 | 48.0% | — |
| 2004 | 88,586 | 887,809 | 43.1% | — |
| 2003 | 101,786 | 1,042,390 | 49.7% | — |
| 2002 | 35,879 | 364,997 | 17.5% | — |
| 2001 | 88,710 | 916,640 | 43.3% | — |
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.