Power Plants in NYISO (New York)

1,190 plants · 54.5 GW total capacity

The NYISO (New York) grid region encompasses 1,190 power plants with 54.5 GW total capacity across 3 states.

Largest is Robert Moses Niagara (2429 MW Hydro); oldest active is Effley (1902); newest is Chester (2026); top state is New York (1,184 plants); top owner is Erie Boulevard Hydropower (71 plants).