La Grande-1 generating station
La Grande-1 generating station | |
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![]() ![]() Location of La Grande-1 generating station in Quebec | |
Official name | Centrale La Grande-1 |
Country | Canada |
Location | Baie-James, Quebec |
Coordinates | 53°44′04″N 78°34′25″W / 53.73444°N 78.57361°WCoordinates: 53°44′04″N 78°34′25″W / 53.73444°N 78.57361°W |
Status | Operational |
Construction began | 1989 |
Opening date | 1994-1995 |
Construction cost | C$2.5 billion |
Owner(s) | Hydro-Québec |
Dam and spillways | |
Type of dam | Barrage |
Impounds | La Grande River |
Height | 25 m (82 ft) |
Length | 2,584 m (8,478 ft) |
Dam volume | 1,070,000 m3 (38,000,000 cu ft) |
Spillways | 1 |
Spillway type | Parabolic |
Spillway capacity | 16,280 m3/s (574,923 cu ft/s) |
Reservoir | |
Total capacity | 1,228 hm3 (4.34×1010 cu ft) |
Active capacity | 98 hm3 (3.5×109 cu ft) |
Surface area | 70 km2 (27 sq mi) |
Maximum length | 75 km (47 mi) |
Normal elevation | 32.0 m (105.0 ft) |
Power Station | |
Type | Run-of-the-river |
Hydraulic head | 27.5 m (90 ft) |
Turbines | 12 × fixed-blade propeller-type turbines General Electric (8); GEC Alsthom (4) |
Installed capacity | 1,436 MW |
Capacity factor | 57% |
Annual generation | 7,500 GWh |
Source: Société d'énergie de la Baie James 1996 |
The La Grande-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]
See also[]
- List of largest power stations in Canada
- List of electrical generating stations in Quebec
- Reservoirs and dams in Canada
- Hydro-Québec
- James Bay Project
- Chisasibi, Quebec
References[]
- ^ "Hydroelectric Plants in Quebec". Industcards. Retrieved 17 June 2015.
Further reading[]
- Hydro-Québec; GENIVAR Groupe Conseil inc. (2005). Environmental Monitoring at the La Grande-2-A and La Grande-1 projects. Abridged Summary Report. Bank dynamics of the La Grande Rivière (PDF). Retrieved May 17, 2011.
- Société d'énergie de la Baie James (1996). Le complexe hydroélectrique de La Grande Rivière. Réalisation de la deuxième phase (in French). Montreal: Société d'énergie de la Baie James. ISBN 2-921077-27-2.
External links[]
Categories:
- Dams completed in 1995
- Energy infrastructure completed in 1995
- James Bay Project
- Dams in Quebec
- Run-of-the-river power stations
- Dams on the La Grande River
- Quebec building and structure stubs
- Canadian power station stubs