La Grande-4 generating station

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La Grande-4 Generating Station
LG4 Feb2006.JPG
Aerial view of the La Grande-4 reservoir and dam
Official name La Grande-4
Location Baie-James, Quebec, Canada
Coordinates 53°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 date 1986
Owner(s) Hydro-Québec
Dam and spillways
Impounds La Grande River
Height 125 m (410 ft)
Length 3,800 m (12,500 ft)
Spillway capacity 7,335 m3/s (259,033 cu ft/s)
Reservoir
Creates LG-4 Reservoir
Surface area 765 km2 (295 sq mi)
Power station
Hydraulic head 116.7 m (383 ft)
Turbines 9 × 308.8 MW (Francis turbine)
Installed capacity 2,779 MW
Hydro-Québec, The La Grande Complex visitor booklet, 2004, ISBN 2-550-41276-1

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.

The spillways of the La Grande 4.

See also[edit]