GridPlants

Power plants in the PacifiCorp East balancing area

The PacifiCorp East balancing area takes in 172 power plants with 18.7 GW of nameplate capacity, the 13th-largest of the 40 areas covered here. Its plants sit in five states, with Utah holding 51% of the capacity. Coal makes up 31% of the mix, and the largest plant is Jim Bridger (2,326 MW). Since 2020, 5,022 MW has come online here, 55% of it wind.

  • Coal5,838 MW31%
  • Natural gas4,578 MW24%
  • Wind4,575 MW24%
  • Solar3,049 MW16%
  • Hydroelectric271 MW1.5%
  • Battery storage201 MW1.1%
  • Geothermal77.1 MW0.4%
  • Other sources56.5 MW0.3%
  • Oil and petroleum30.4 MW0.2%
  • Biomass and waste13 MW0.1%

Capacity by decade it came online

CoalNatural gasOil and petroleumHydroelectricWindSolarBattery storageGeothermalBiomass and wasteOther sources

Above the line: capacity operating in 2025. Below: capacity retired at plants that still run.

2 GW4 GW1890s1900s1910s1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s0

The 25 largest plants in the area

RankPlantStateRuns onCapacityFirst unit
1Jim BridgerWyomingNatural gas2,326 MW1974
2HunterUtahCoal1,472 MW1978
3Lake Side Power PlantUtahNatural gas1,246 MW2007
4HuntingtonUtahCoal1,016 MW1974
5Dave JohnstonWyomingCoal817 MW1959
6NaughtonWyomingCoal707 MW1963
7Rock Creek WindWyomingWind590 MW2025
8Currant CreekUtahNatural gas567 MW2005
9Faraday SolarUtahSolar525 MW2025
10BonanzaUtahCoal512 MW1986
11TB FlatsWyomingWind503 MW2021
12GadsbyUtahNatural gas433 MW1951
13WyodakWyomingCoal362 MW1978
14Boswell WindWyomingWind330 MW2024
15Ekola FlatsWyomingWind251 MW2020
16Pryor Mountain WindMontanaWind240 MW2021
17West Valley Generation ProjectUtahNatural gas217 MW2001
18Appaloosa Solar IUtahSolar200 MW2024
19Cedar Springs IWyomingWind200 MW2020
20Cedar Springs IIWyomingWind200 MW2020
21Dominguez Energy StorageUtahBattery storage200 MW2025
22Hornshadow Solar II, LLCUtahSolar200 MW2025
23Top of the World Windpower ProjectWyomingWind200 MW2010
24GlenrockWyomingWind166 MW2008
25Cedar Creek Wind, LLCIdahoWind160 MW2024

States

StatePlantsCapacity
Utah1139,485 MW
Wyoming338,278 MW
Idaho23676 MW
Montana2244 MW
Colorado17.5 MW

Operators with the most capacity

OperatorPlantsCapacity
PacifiCorp3311.7 GW
Clearway Renewable Operation & Maintenance LLC7530 MW
Deseret Generation & Tran Coop2527 MW
Faraday Solar B LLC1525 MW
Boswell Wind, LLC1330 MW
Deriva Energy2299 MW
Greenbacker Renewable Energy Corporation2280 MW
Utah Municipal Power Agency3233 MW
AES Distributed Energy3222 MW
Onward Energy3222 MW