La Grande-4 generating station photograph

La Grande-4 Generating Station

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Opened 1986
Provinces Quebec
Owners Hydro-Québec
Spillway capacity7,335 m3/s (259,033 cu ft/s)
Turbines9 × 308. 8 MW (Francis turbine)
Impound La Grande River
Date of Reg.
Date of Upd.
ID2027001
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About 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.

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