La Grande-4 generating station

The La Grande-4 is a hydroelectric generating station on the La Grande River that is part of Hydro-Québec's James Bay Project. The station can generate 2,779 MW and was commissioned in 1984–1986. It generates electricity through the reservoir and dam system.

La Grande-4 generating station
LG4 Feb2006.JPG
Aerial view of the La Grande-4 reservoir and dam
Official nameLa Grande-4
LocationBaie-James, Quebec, Canada
Coordinates53°53′10″N 73°27′45″W / 53.88611°N 73.46250°W / 53.88611; -73.46250Coordinates: 53°53′10″N 73°27′45″W / 53.88611°N 73.46250°W / 53.88611; -73.46250
Opening date1986
Owner(s)Hydro-Québec
Dam and spillways
ImpoundsLa Grande River
Height125 m (410 ft)
Length3,800 m (12,500 ft)
Spillway capacity7,335 m3/s (259,033 cu ft/s)
Reservoir
CreatesLG-4 Reservoir
Surface area765 km2 (295 sq mi)
Power Station
Hydraulic head116.7 m (383 ft)
Turbines9 × 308.8 MW (Francis turbine)
Installed capacity2,779 MW
Hydro-Québec, The La Grande Complex visitor booklet, 2004, ISBN 2-550-41276-1
The spillways of the La Grande 4.

See alsoEdit