La Grande-3 generating station

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La Grande-3 or LG-3 is a hydroelectric dam on the La Grande River in northern Quebec, part of Hydro-Québecs James Bay hydroelectric project. The station can generate 2,418 MW and was commissioned in 1982-1984. It generates electricity through the reservoir and dam system. The dam and reservoir both are named La Grande-3.


La Grande-3 generating station
Year commissioned: 1982-1984
Installed capacity: 2418 MW
Number of turbines: 12
Turbine capacity: 201.5 MW
Type of turbine: Francis
Net rated head: 79.2 m (259.8 ft)
Distance from James Bay: 238 km (148 mile)
Size of reservoir: 2420 km² (934 mile²)
Spillway capacity: 10000 m³/s (13080 yd³/s)
Source: Hydro-Quebec, The La Grande Complex visitor booklet, 2004.

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