Power Plants in Idaho

158 plants · 7.5 GW total capacity

Idaho has 158 power plants with 7.5 GW total capacity. The generation mix includes 76 hydro, 34 wind, 15 solar plants.

Largest is Brownlee (675 MW Hydro); oldest active is Post Falls (1906); newest is IFP Peaking Plant (2026); top owner is IDACORP (29 plants).

83 interconnection queue projects in Idaho totaling 21 GW of proposed capacity.