| La Grande-1 generating station | |
| Name Official: | Centrale La Grande-1 |
| Location Map: | Quebec |
| Coordinates: | 53.7344°N -78.5736°W |
| Country: | Canada |
| Location: | Baie-James, Quebec |
| Status: | O |
| Construction Began: | 1989 |
| Opening: | 1994-1995 |
| Cost: | C$2.5 billion |
| Owner: | Hydro-Québec |
| Dam Type: | B |
| Dam Height: | 25m (82feet) |
| Dam Length: | 2584m (8,478feet) |
| Dam Volume: | 1070000m2 |
| Dam Crosses: | La Grande River |
| Spillway Count: | 1 |
| Spillway Type: | Parabolic |
| Spillway Capacity: | 162800NaN0 |
| Res Capacity Total: | 1228hm3 |
| Res Capacity Active: | 98hm3 |
| Res Surface: | 70km2 |
| Res Elevation: | 32m (105feet) |
| Res Max Length: | 75km (47miles) |
| Plant Hydraulic Head: | 27.5m (90.2feet) |
| Plant Type: | R |
| Plant Turbines: | 12 × fixed-blade propeller-type turbines General Electric (8); GEC Alsthom (4) |
| Plant Capacity: | 1,436 MW |
| Plant Capacity Factor: | 57% |
| Plant Annual Gen: | 7,500 GWh |
| Extra: | Source: |
The La Grande-1 (LG-1) is a hydroelectric power 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 water-level fluctuations (the Laforge-2 generating station is the other). Thus, the amount of electricity generated by the station depends almost entirely on the water-flow of the river, which is largely controlled by upstream reservoirs and generating stations.[1]
. Le complexe hydroélectrique de La Grande Rivière. Réalisation de la deuxième phase . Montreal . Société d'énergie de la Baie James . James Bay Energy . Société d'énergie de la Baie James . 1996 . 2-921077-27-2 . French.