Opinaca Reservoir

Opinaca Reservoir
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Location: Québec (Canada) Tributaries: Rivière Opinaca , Rivière Eastmain , Rivière Gipouloux , Rivière Giard Drain: via Lac Boyd , Rivière Boyd , Lac Sakami , Rivière Sakami to the Réservoir Robert-Bourassa
Quebec , Canada
Coordinates	52 ° 38 '35 "  N , 76 ° 20' 6"  W Coordinates: 52 ° 38 '35 "  N , 76 ° 20' 6"  W.
Data on the structure
Construction time:	1980
Power plant output:	150 MW (under construction)
Operator:	Hydro Quebec
Data on the reservoir
Altitude (at congestion destination )	215.8  m
Water surface	1 040  km²
Storage space	3 395 000 000  m³

The Réservoir Opinaca is a reservoir in the Canadian province of Québec . It is part of the Baie James hydropower project .

The reservoir, in which there are numerous islands, has a water surface of 1040 km² at an altitude of 216 m above sea level. The main tributaries are the Rivière Eastmain and the Rivière Opinaca .

Several dams regulate the reservoir:

• Barrage OA-05 at the outflow of the Rivière Opinaca
• Barrage OA-10A and Barrage OA-10B
• Barrage OA-11 at the outflow of the Rivière Eastmain
• Ouvrage régulateur de la Sarcelle (21.4 m high; 688 m long; completed in 1980), a regulating weir on the discharge to the Robert-Bourassa Réservoir.

The Sarcelle hydropower plant at the outlet to the Robert-Bourassa Réservoir is under construction . The gradient between the Réservoir Opinaca (211.8–215.8 m) and Lac Boyd (201.2 m) is to be used to generate energy. Three turbines with a total output of 150 MW are to generate an annual output of 1.1 TWh. The expansion flow is 1290 m³ / s.

Individual evidence

1. ^ Réservoir Opinaca. Commission de toponymie du Québec, accessed March 12, 2012 (French). 
2. ↑ Localization. (PDF, 4.86 MB) Hydro-Québec, accessed on December 2, 2011 (French). 
3. ^ Ouvrage régulateur de la Sarcelle. Commission de toponymie du Québec, accessed March 12, 2012 (French). 
4. ↑ Centrale de la Sarcelle. Hydro-Québec, accessed March 12, 2012 (French).