Power Plants in Washington County, Idaho

Washington County, Idaho has 2 power plants totaling 678 MW of nameplate capacity. Browse every plant below with fuel type, operator, and capacity.

Plants2operating sites
Capacity678 MWnameplate
Generation2.1M MWhannual
Hydroelectric 100%

Plant locations

All plants in this county

PlantCityFuelCapacityOperator
BrownleeCambridgeHydroelectric675 MWIdaho Power Co
Weiser BessWashingtonBattery Storage3.0 MWIdaho Power Co

About power generation in Washington County

Washington County, Idaho has 2 power plants totaling 678 MW of nameplate capacity. Hydroelectric is the dominant fuel source at 100% of installed capacity, followed by Battery Storage (0%). The largest facility is Brownlee at 675 MW. Data comes from EIA Form 860, EIA Form 923, and EPA eGRID federal releases.

To find plants closer to a specific address in Washington County, use the address lookup — it shows every plant within a chosen radius along with distance, fuel type, and emissions.