Power Plants in Idaho

Idaho operates 160 power plants totaling 5,999 MW of nameplate capacity. Hydroelectric dominates the mix at 45%, followed by Natural Gas (21%) and Wind (19%). The largest plant is Brownlee at 675 MW.

Plants160operating sites

Capacity5,999 MWnameplate

Generation17.8M MWhannual

CO₂2.8Mmetric tons/year

Hydroelectric 45%Natural Gas 21%Wind 19%Solar 8%Battery Storage 4%Biomass 2%

Plant locations

Showing the 120 largest plants by capacity. Idaho operates another 40 plants below this size — browse the lists below to reach them.

Largest plants in Idaho

Plant	City	Fuel	Capacity
Brownlee	Cambridge	Hydroelectric	675 MW
Dworshak	Ahsahka	Hydroelectric	465 MW
Langley Gulch Power Plant	New Plymouth	Natural Gas	319 MW
Rathdrum Power Llc	Rathdrum	Natural Gas	302 MW
Evander Andrews Power Complex	Mountain Home	Natural Gas	271 MW
Cabinet Gorge	Clark Fork	Hydroelectric	265 MW
Palisades Dam	Palisades	Hydroelectric	176 MW
Bennett Mountain	Mountain Home	Natural Gas	173 MW
Rathdrum	Rathdrum	Natural Gas	166 MW
Cedar Creek Wind, Llc	Shelley	Wind	160 MW
Goshen Phase Ii	Idaho Falls	Wind	125 MW
Jackpot Solar, Llc	Twin Falls	Solar	120 MW
Meadow Creek Project Company	Idaho Falls	Wind	120 MW
Hemmingway Bess	Melba	Battery Storage	116 MW
Clearwater Paper Ipp Lewiston	Lewiston	Biomass	114 MW
Lucky Peak Power Plant Project	Boise	Hydroelectric	101 MW
Franklin Solar Hybrid	Twin Falls	Solar	100 MW
American Falls	American Falls	Hydroelectric	92.4 MW
C J Strike	Bruneau	Hydroelectric	82.8 MW
Grand View Solar Two	Grand View	Solar	80.0 MW
Rockland Wind Farm	American Falls	Wind	79.2 MW
Bliss (Id)	Bliss	Hydroelectric	75.0 MW
Wolverine Creek	Idaho Falls	Wind	64.5 MW
Lower Salmon	Hagerman	Hydroelectric	60.0 MW
Franklin Battery Storage	Twin Falls	Battery Storage	60.0 MW
Milner Hydro	Murtaugh	Hydroelectric	59.5 MW
Horse Butte Wind I, Llc	Iona	Wind	57.6 MW
Twin Falls (Id)	Kimberly	Hydroelectric	52.7 MW
Albeni Falls	Oldtown	Hydroelectric	42.0 MW
Anderson Ranch	Mountain Home	Hydroelectric	40.0 MW
High Mesa	King Hill	Wind	40.0 MW
Id Solar	Kuna	Solar	40.0 MW
Black Mesa Bess	King Hill	Battery Storage	40.0 MW
Black Mesa Solar, Llc	King Hill	Solar	40.0 MW
Smith Falls Hydro Project	Bonners Ferry	Hydroelectric	38.1 MW
Grace	Grace	Hydroelectric	33.0 MW
Oneida	Riverdale	Hydroelectric	30.0 MW
Minidoka	Rupert	Hydroelectric	27.7 MW
Swan Falls	Kuna	Hydroelectric	27.2 MW
Gem State	Idaho Falls	Hydroelectric	23.4 MW
Ryegrass Windfarm	Glenns Ferry	Wind	23.0 MW
Hammett Hill Windfarm	Glenns Ferry	Wind	23.0 MW
Mainline Windfarm	Glenns Ferry	Wind	23.0 MW
Desert Meadow Windfarm	Glenns Ferry	Wind	23.0 MW
Cold Springs Windfarm	Glenns Ferry	Wind	23.0 MW
Two Ponds Windfarm	Glenns Ferry	Wind	23.0 MW
Camp Reed	Glenns Ferry	Wind	22.5 MW
Power County Wind Park South	American Falls	Wind	22.5 MW
Power County Wind Park North	American Falls	Wind	22.5 MW
Sawtooth Wind Project	Glenns Ferry	Wind	22.4 MW

By county

Elmore County20 plants · 927 MW Washington County2 plants · 678 MW Twin Falls County27 plants · 596 MW Bonneville County13 plants · 593 MW Kootenai County4 plants · 485 MW Clearwater County2 plants · 466 MW Payette County1 plants · 318 MW Bonner County2 plants · 307 MW Power County6 plants · 256 MW Owyhee County3 plants · 218 MW Ada County13 plants · 203 MW Gooding County13 plants · 187 MW Bingham County1 plants · 160 MW Cassia County6 plants · 134 MW Nez Perce County1 plants · 113 MW Jerome County8 plants · 53 MW Caribou County4 plants · 49 MW Boundary County2 plants · 42 MW Franklin County2 plants · 33 MW Minidoka County1 plants · 27 MW Fremont County4 plants · 24 MW Bannock County3 plants · 20 MW Valley County1 plants · 12 MW Blaine County2 plants · 11 MW Canyon County4 plants · 11 MW Gem County1 plants · 10 MW Boise County1 plants · 9 MW Teton County1 plants · 7 MW Lincoln County3 plants · 7 MW Adams County1 plants · 6 MW Benewah County1 plants · 6 MW Madison County1 plants · 5 MW Lemhi County1 plants · 5 MW Butte County1 plants · 3 MW Clark County2 plants · 2 MW Idaho County1 plants · 2 MW Jefferson County1 plants · 1 MW