List of power stations in Idaho

This is a list of electricity-generating power stations in Idaho, sorted by type and name. In 2019, Idaho had a total summer capacity of 5,212 MW through all of its power plants, and a net generation of 18,408 GWh.[2] The corresponding electrical energy generation mix was 56.1% hydroelectric, 23.2% natural gas, 13.9% wind, 3.2% biomass, 3.0% solar, and 0.5% geothermal. Small-scale solar, including customer-owned photovoltaic panels, generated an additional net 58 GWh to the state's electrical grid. This was nine times smaller than the generation from Idaho's utility-scale solar PV plants.[1]

Sources of Idaho electricity generation: full year 2019 [1]

  Coal (0.1%)

  Natural Gas (23.2%)

  Hydroelectric (56.1%)

  Wind (13.9%)

  Biomass&Waste Heat (3.2%)

  Solar (3.0%)

  Geothermal (0.5%)

During 2019, Idaho was one of the top-five U.S. states in its share of renewable electricity generation. It has a rapidly growing population and many undeveloped resources. Idahoans have consumed about 50% more electricity during recent years than is generated within the state.[3]

Fossil-fuel power stations

Data from the U.S. Energy Information Administration serves as a general reference.[4]

Coal-fired

Name	Location	Coordinates	Capacity (MW)	Refs	Year Opened	Note
Amalgamated Sugar Twin Falls Power Plant	Twin Falls County	42.5328°N 114.4328°W	8.5	[5]	1948	6MW added 1994

Natural gas-fired

Idaho has few natural gas reserves, and most of the supply is imported.[3] There were just eight producing wells in the state in 2019.[6]

Name	Location	Coordinates	Capacity (MW)	Generation Type	Refs	Year Opened	Note
Amalgamated Sugar Nampa Power Plant	Canyon County	43.6058°N 116.5753°W	8.2	Steam Turbine	[7]	1948	originally 2.2MW coal. 6MW coal added 1960. converted to gas 2015.[8]
Bennet Mountain Gas Turbine	Elmore County	43.1471°N 115.6666°W	165	Simple Cycle	[9][10]	2007
Evander Andrews Power Complex (or Danskin Power Plant)	Elmore County	43.1791°N 115.7343°W	260	Simple Cycle (x3)	[9][10]	2002	170MW expansion in 2008
Langley Gulch Power Plant	Payette County	43.9044°N 116.8197°W	300	1x1 Combined Cycle	[9]	2012
Rathdrum Gas Turbine	Kootenai County	47.8043°N 116.8673°W	130	Simple Cycle (x2)	[11][12]	1995
Rathdrum Power Plant (or Lancaster Plant)	Kootenai County	47.7858°N 116.9203°W	270	1x1 Combined Cycle	[13]	2001

Renewable power stations

Data from the U.S. Energy Information Administration serves as a general reference.[4]

Biomass

Name	Location	Coordinates	Capacity (MW)	Refs	Fuel	Year Opened	Note
Clearwater Paper Biomass	Nez Perce County	46.4231°N 116.9764°W	55	[14][15][16]	wood/wood waste	1950	latest capacity increase in 1991. includes 5MW natural gas.
Fighting Creek Landfill Gas	Kootenai County	47.5317°N 116.9300°W	3.2	[17][18]	landfill gas	2012
Plummer Cogen	Benewah County	47.3310°N 116.8904°W	5.8	[19][20]	wood/wood waste	1982
Rock Creek Dairy	Twin Falls County	42.50027°N 114.6150°W	3.2	[21][22]	biogas	2012
Simplot Don Plant	Bannock County	42.9084°N 112.52944°W	15	[23][24]	industrial waste heat	1986	from chemical fertilizer manufacturing
Tamarack Energy	Adams County	44.9548°N 116.3871°W	5.8	[25][26]	wood/wood waste	1983

Geothermal

Name	Location	Coordinates	Capacity (MW)	Refs	Year Opened	Note
Raft River Plant	Casia County	42.0994°N 113.3824°W	10	[27][28]	2008

Hydroelectric

Name	Location	Coordinates	Capacity (MW)	Refs	Year Opened	Note
Albeni Falls Powerplant	Bonner County	48.1802°N 116.9985°W	42	[29]	1955
American Falls Hydro	Power County	42.7778°N 112.8764°W	110	[30]	1978
Anderson Ranch Powerplant	Elmore County	43.3571°N 115.4515°W	40	[31]	1950
Arrowrock Dam Powerplant	Boise County Elmore County	43.5950°N 115.9233°W	15	[32]	2010
Ashton Hydro	Fremont County	44.0786°N 111.4973°W	8	[33]	1917	4.0MW added 1925
Barber Dam Powerplant	Ada County	43.5610°N 116.1212°W	4	[34]	1990
Black Canyon Diversion Powerplant	Gem County	43.9305°N 116.4372°W	10	[35]	1925
Bliss Hydro	Elmore County Gooding County	42.9138°N 115.0710°W	75	[30]	1950
Boise River Diversion Powerplant	Ada County	43.5377°N 116.0938°W	3	[36]	2004
Brownlee Hydro	Washington County	44.8367°N 116.8975°W	675	[30]	1958	225MW added 1980
Bulb Turbine Project	Bonneville County	43.4913°N 112.0454°W	24	[37]	1982	includes three 8.0MW plants
C. J. Strike Hydro	Owyhee County	42.9449°N 115.9778°W	83	[30]	1952
Cabinet Gorge Hydro	Bonner County	48.0844°N 116.0530°W	265	[38]	1953
Cascade Hydro	Valley County	44.5256°N 116.0483°W	14	[30][39]	1983
Clear Lake Hydro	Gooding County Twin Falls County	42.6670°N 114.7801°W	2.5	[30]	1937
Dworshak Hydropower Plant	Clearwater County	46.5143°N 116.2977°W	465	[40]	1975
Gem State Hydro	Bonneville County	43.4202°N 112.1019°W	23	[37]	1988
Grace Hydro	Caribou County	42.5368°N 111.7940°W	33	[41]	1923
Hells Canyon Hydro	Adams County	45.2439°N 116.7008°W	392	[30]	1967	all electricity is generated in Oregon
Horseshoe Bend Hydro	Boise County	43.9041°N 116.2442°W	9.5	[42]	1955
Island Park Hydro	Fremont County	44.4183°N 111.3960°W	5	[43]	1994
Lower Salmon Falls Hydro	Gooding County	42.8416°N 114.9036°W	60	[30]	1949
Lucky Peak Hydro	Ada County	43.5280°N 116.0583°W	101	[44]	1988
Malad Hydro (Upper & Lower)	Gooding County	42.8643°N 114.8855°W	22	[30]	1948
Milner Hydro	Cassia County	42.5267°N 114.0369°W	60	[30]	1992
Minidoka Powerplant	Minidoka County	42.6699°N 113.4832°W	28	[45][46]	1927	5.0MW add 1942 20MW added 1997
Moyie Springs Hydro	Boundary County	48.7339°N 116.1752°W	4	[47][48]	1921	1 MW added 1941 1 MW added1950 1.5MW added 1982
Oneida Hydro	Caribou County	42.2678°N 111.7485°W	30	[41]	1915	10MW added 1920
Oxbow Hydro	Adams County	44.9716°N 116.8350°W	190	[30]	1961	all electricity is generated in Oregon
Palisades Powerplant	Bonneville County	43.3348°N 111.2058°W	176	[49]	1957
Post Falls Hydro	Kootenai County	47.7033°N 116.9538°W	15	[50]	1906	3.5MW added 1980
Shoshone Falls Hydro	Jerome County	42.5975°N 114.4033°W	13	[30]	1921
Smith Creek Hydro	Boundary County	48.9595°N 116.5574°W	38	[51]	1990
Soda Hydro	Caribou County	42.6445°N 111.6967°W	15	[41]	1924
Swan Falls Hydro	Ada County	43.2435°N 116.3791°W	25	[30]	1994
Thousand Springs Hydro	Gooding County	42.7405°N 114.8367°W	7	[30]	1920
Twin Falls Hydro	Twin Falls County	42.5892°N 114.3553°W	53	[30]	1935	44MW added 1995
Upper Salmon Falls Hydro	Gooding County	42.7664°N 114.9082°W	35	[30]	1937	16.5MW add 1947

Wind

Name	Location	Coordinates	Capacity (MW)	Refs	Year Opened	Turbine Mfg Spec
Goshen Wind Farm	Bonneville County	43.4670°N 111.8363°W	125	[52][53]	2010	GE 1.5MW
Meadow Creek Wind Farm	Bonneville County	43.5244°N 111.8039°W	120	[54]	2012	Suzlon 2.1MW
Wolverine Creek Wind	Bonneville County	43.4195°N 111.8294°W	64.5	[55]	2009	GE 1.5MW
Horse Butte Wind Farm	Bonneville County	43.3864°N 111.7264°W	57.6	[56]	2012	Vestas 1.8MW
Rockland Wind Farm	Power County	42.6747°N 112.90194°W	79.2	[57]	2011	Vestas 1.8MW
Power County Wind Park	Power County	42.7389°N 112.7486°W	45.0	[58]	2011	Nordex 2.5MW
High Mesa Wind Farm	Elmore County Twin Falls County	42.8800°N 115.0366°W	39.9	[59]	2012	Suzlon 2.1MW
Camp Reed Wind Farm	Elmore County	42.8119°N 115.0488°W	22.5	[60]	2010	GE 1.5MW
Payne's Ferry Wind Farm	Twin Falls County	42.8253°N 115.0108°W	21.0	[61]	2010	GE 1.5MW
Yahoo Creek Wind Farm	Twin Falls County	42.7708°N 114.9886°W	21.0	[62]	2010	GE 1.5MW
Burley Butte Wind Park	Cassia County	42.4903°N 113.9266°W	19.5	[63]	2011	GE 1.5MW
Milner Dam Wind Farm	Cassia County	42.4606°N 114.0172°W	19.5	[64]	2011	GE 1.5MW

Solar

Name	Location	Coordinates	Capacity (MWAC)	Refs	Year Opened	Note
American Falls Solar Farm	Power County	42.8240°N 112.7520°W	20	[65]	2017
Grandview Solar Farm	Elmore County	42.9896°N 116.0934°W	80	[66][67]	2016
ID Solar Farm	Ada County	43.4440°N 116.3330°W	40	[68]	2016
Mountain Home Solar Farm	Elmore County	43.1290°N 115.7520°W	20	[69]	2017
Murphy Flat Solar Farm	Ada County	43.2130°N 116.4390°W	20	[70]	2017
Orchard Ranch Solar Farm	Ada County	43.4670°N 116.2850°W	20	[71]	2017
Simcoe Solar Farm	Elmore County	43.2884°N 115.9554°W	20	[72][73]	2017

Nuclear (R&D Only)

Since 1951, fifty-two reactors have been built on the grounds of the Atomic Energy Commission's National Reactor Testing Station, currently the location of the U.S. Department of Energy's Idaho National Laboratory (INL). BORAX-III was the first nuclear reactor to supply electrical power to the U.S. grid in 1955. Four reactors which do not generate electricity are in operation at the site as of year 2020.[74]

Name	Location	Coordinates	Capacity (MW)	Refs	Year Opened	Year Closed	Note
Experimental Breeder Reactor I (EBR-I)	Butte County	43.5113°N 113.0064°W	0.2	[75]	1951	1964
Experimental Breeder Reactor II (EBR-II)	Butte County		20	[76]	1964	1994
Argonne Low Power Reactor (ALPR/SL-1)	Butte County	43.5180°N 112.8234°W	0.3	[77]	1958	1961	meltdown
Advanced Test Reactor (ATR)	Butte County	43.5858°N 112.9653°W	N/A	[78][79]	1967
Advanced Test Reactor Critical Facility (ATRC)	Butte County		N/A	[80]	1964
Neutron Radiography Reactor (NRAD)	Butte County		N/A	[81]	1977
Transient Reactor Test Facility (TREAT)	Butte County		N/A	[82][83]	1959	1994	restarted 2017
Versatile Test Reactor (VTR)	Butte County		TBD	[84]			proposed

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