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 | ||||||||||||||||||||||||||
| 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)
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| 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
- Hydro-Québec
- James Bay Project
- Chisasibi, Quebec
- List of electrical generating stations in Quebec
- Reservoirs and dams in Canada
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
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