Power plants in Twin Falls County, Idaho

27 operating power plants in Twin Falls County, Idaho, with 597 MW of nameplate capacity, largest first. From EIA-860M, August 2026.

Plants

Nameplate capacity

597 MW

Net generation, 2025

1.27 TWh

26 of 27 plants reported

Largest

Jackpot Solar, LLC

120 MW

Largest power plants in Twin Falls County

#	Plant	MW	2025 net generation, GWhGWh, 2025	Capacity factor	Operator
1	Jackpot Solar, LLCSolar	120	275	26.1%	Deriva Energy
2	Franklin Solar HybridSolar	100	252	28.8%	Franklin Solar Idaho
3	Franklin Battery StorageBattery storage	60	−9.0	–	Idaho Power Co
4	Twin Falls (ID)Hydro	53	43.5	9.4%	Idaho Power Co
5	High MesaWind	40	76.4	21.8%	High Mesa Energy, LLC
6	Salmon Falls Wind ParkWind	21	58.3	31.7%	Idaho Wind Partners 1 LLC
7	Payne's FerryWind	21	59.2	32.2%	Idaho Wind Partners 1 LLC
8	Yahoo CreekWind	21	58.8	32.0%	Idaho Wind Partners 1 LLC
9	Cassia GulchWind	19	35.4	21.4%	Cassia Gulch Wind Park, LLC
10	Upper Salmon AHydro	18	92.6	58.8%	Idaho Power Co
11	Tuana SpringsWind	17	28.2	19.1%	Tuana Springs Energy, LLC
12	Upper Salmon BHydro	17	89.1	61.7%	Idaho Power Co
13	Oregon Trail Wind ParkWind	14	34.9	29.5%	Idaho Wind Partners 1 LLC
14	Thousand Springs Wind ParkWind	12	28.6	27.2%	Idaho Wind Partners 1 LLC
15	Amalgamated Sugar Twin FallsNatural gas	11	20.6	–	The Amalgamated Sugar Co
16	Pilgrim Stage Wind ParkWind	11	30.1	32.7%	Idaho Wind Partners 1 LLC
17	Tuana Gulch Wind ParkWind	11	27.4	29.8%	Idaho Wind Partners 1 LLC
18	Cassia WindWind	8.4	17.8	24.2%	Cassia Wind Farm, LLC
19	South Forks HydroHydro	8.0	26.3	37.6%	South Forks Joint Venture
20	Low Line RapidsHydro	2.8	8.3	33.9%	Lower Lowline LLC
21	Lateral 10 VenturesHydro	2.4	0.6	2.7%	Lateral 10 Ventures
22	Crystal SpringsHydro	2.3	8.5	42.1%	Crystal Springs Hydro Elec LP
23	Rock Creek IHydro	2.1	0.1	0.5%	Shorock Hydro Inc
24	Filer BESSBattery storage	2.0	−0.2	–	Idaho Power Co
25	Rock Creek IIHydro	1.9	–	–	Hydroland Omega LLC
26	Clif Bar Bakery of Twin FallsSolar	1.6	2.6	18.3%	Mondelez Global LLC (Twin Falls)
27	Little Mac ProjectHydro	1.5	4.3	32.5%	Little Mac Power Company

MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources

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Other counties in Idaho

Elmore County20 plants · 882 MW Ada County13 plants · 828 MW Gooding County13 plants · 188 MW Bonneville County11 plants · 611 MW Jerome County8 plants · 53 MW Cassia County6 plants · 132 MW Power County5 plants · 164 MW Canyon County4 plants · 93 MW Fremont County4 plants · 24 MW

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