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La Grande-1 is a hydroelectric generating station on the La Grande River that is part of Hydro-Québec's James Bay Project. The station can generate 1,436 MW and was commissioned in 1994–1995. A "run of the river" generating station, it is one of only two generating stations of the James Bay Project that use a reservoir without any major waterlevel fluctuations (the Laforge-2 generating station is the other). Thus, the amount of electricity generated by the station depends almost entirely on the waterflow of the river, which is largely controlled by upstream reservoirs and generating stations.
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| La Grande-1 generating station |
| Year commissioned: |
1993-1995 |
| Installed capacity: |
1436 MW |
| Number of turbines: |
12 |
| Turbine capacity: |
119.7 MW |
| Type of turbine: |
Fixed-blade propeller |
| Net rated head: |
27.5 m (90.2 ft) |
| Distance from James Bay: |
37 km (23 mile) |
| Size of reservoir: |
70 km² (27 mile²) |
| Spillway capacity: |
16280 m³/s (21293 yd³/s) |
- Source: Hydro-Quebec, The La Grande Complex visitor booklet, 2004.
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