Idaho
Hydro accounts for 51% of Idaho's 22,456 GWh of generation.
Where they are
Every announced project in Idaho with a recorded location; 5 sites.
Hydro51%Natural gas25%Wind14%Solar10%Other (<2.5% each)1%
| Fuel | GWh | Share | YoY |
|---|---|---|---|
| Hydro | 11,347 | 50.5% | ↑ 6.4 |
| Natural gas | 5,574 | 24.8% | ↓ 5.4 |
| Wind | 3,118 | 13.9% | ↓ 1.5 |
| Solar | 2,144 | 9.6% | ↑ 1.0 |
| Other | 273 | 1.2% | ↓ 0.5 |
13-month trend
Natural gas
Wind
Solar
Hydro
Other
Hub power prices against a national gas-cost benchmark; not a state margin.
What’s standing
The 8 largest of 275 operating generators; 6.8 GW total capacity.
- DworshakHydro · USACE Northwestern Division259 MW1974
- BrownleeHydro · Idaho Power Co225 MW1980
- Matrix Pleasant ValleySolar · Pleasant Valley Solar, LLC200 MW2025
- Langley Gulch Power Plant, unit LG1Natural gas · Idaho Power Co187 MW2012
- Rathdrum Power LLC, unit CC1Natural gas · Rathdrum Power LLC179 MW2001
- Evander Andrews Power ComplexNatural gas · Idaho Power Co179 MW2008
- Bennett MountainNatural gas · Idaho Power Co173 MW2005
- Cedar Creek Wind, LLCWind · Cedar Creek Wind, LLC160 MW2024
On the drawing board
2 projects on the board
Built since July 2026
- Hemmingway BESSStanding50 MW2026
- Boise Bench BESSStanding150 MW2026
Idaho's announced projects could add 2 TWh a year by 2031. Our projection includes 1.7 TWh after applying completion factors based on project status.
Idaho in the news
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