Lac Boyd Opinaca reservoir Eastmain 1 reservoir Eastmain-1 powerhouse Sarcelle powerhouse (under construction) Eastmain-1-A powerhouse (under construction) Lambert, NAD83 0 15 km Lac Boyd Opinaca reservoir Eastmain 1 reservoir Eastmain-1 powerhouse Sarcelle powerhouse (under construction) Eastmain-1-A powerhouse (under construction) Lambert, NAD83 0 15 km Increased Flow Sector Opinaca Reservoir Information about the impact of hydroelectric developments on the territory. Before the partial diversion of the Rupert River The outflow from the Rivière Eastmain was ± 600 m 3 /s. The natural inflows (i.e., the water from nearby mountains and rivers) to Opinaca reservoir is ± 300 m 3 /s. The total flow at the spillway of Sarcelle powerhouse was hence ± 900 m 3 /s. After the partial diversion of the Rupert River New inflows from the Rupert diversion are ± 450 m 3 /s, for a total flow of ± 1,350 m 3 /s to Sarcelle powerhouse. Year 2010 Due to unusual weather conditions (there was little precipitation and natural inflows were low), 2010 cannot be considered a reference year. Eastmain-1-A/Sarcelle/Rupert Project INFORMATION BULLETIN NO. 2 JANUARY 2011 = 100 m 3 Did you know ... A trailer truck is the equiva- lent of 100 m 3 of water. 300 m 3 /s Natural inflows to Opinaca reservoir Natural inflows to Opinaca reservoir Outflow from the Rivière Eastmain Outflow from the Rivière Eastmain Before the partial diversion of the Rupert River After the partial diversion of the Rupert River Note: Averages are provided for information purposes, to facilitate understanding. Flow data vary from year to year. 300 m 3 /s
2011-01 - Iyimtaak - N2 - EM1A-SR - ANG
Mar 23, 2016
Eastmain-1 powerhouse Sarcelle powerhouse (under construction) Sarcelle powerhouse (under construction) = 100 m 3 Year 2010 The outflow from the Rivière Eastmain was ± 600 m 3 /s. The natural inflows (i.e., the water from nearby mountains and rivers) to Opinaca reservoir is ± 300 m 3 /s. The total flow at the spillway of Sarcelle powerhouse was hence ± 900 m 3 /s. New inflows from the Rupert diversion are ± 450 m 3 /s, for a total flow of ± 1,350 m 3 /s to Sarcelle powerhouse. Lac Boyd
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LacBoyd
Opinaca reservoir
Eastmain 1reservoir
Eastmain-1 powerhouse
Sarcelle powerhouse (under construction)
Eastmain-1-Apowerhouse(under construction)
Lambert, NAD83
0 15 km
6675_geq_1114_101130.fh10
LacBoyd
Opinaca reservoir
Eastmain 1reservoir
Eastmain-1 powerhouse
Sarcelle powerhouse (under construction)
Eastmain-1-Apowerhouse(under construction)
Lambert, NAD83
0 15 km
6675_geq_1114_101130.fh10
Increased Flow SectorOpinaca Reservoir
Information about the impact of hydroelectric developments on the territory.
Before the partial diversion of the Rupert River
The outflow from the Rivière Eastmain was ± 600 m3/s. The natural inflows (i.e., the water from nearby mountains and rivers) to Opinaca reservoir is ± 300 m3/s. The total flow at the spillway of Sarcelle powerhouse was hence ± 900 m3/s.
After the partial diversion of the Rupert River
New inflows from the Rupert diversion are ± 450 m3/s, for a total flow of ± 1,350 m3/s to Sarcelle powerhouse.
Year 2010
Due to unusual weather conditions (there was little precipitation and natural inflows were low), 2010 cannot be considered a reference year.
E a s t m a i n - 1 - A / S a r c e l l e / R u p e r t P r o j e c tINFORMATION BULLETIN NO. 2 JANUARY 2011
= 100 m3
Did you know ...
A trailer truck is the equiva-lent of 100 m3 of water.
300 m3/s
Natural inflows to Opinaca reservoir
Natural inflows to Opinaca reservoir
Outflow from the Rivière Eastmain
Outflow from the Rivière Eastmain
Before the partial diversion of the Rupert River
After the partial diversion of the Rupert River
Note: Averages are provided for information purposes, to facilitate understanding. Flow data vary from year to year.
300 m3/s
Water level at Opinaca reservoir(diagram not to scale)
Information about the impact of hydroelectric developments on the territory.
Wintertime management
The water level at Opinaca reservoir will be a little higher in early winter (mid-November) and will decline steadily throughout the winter until April.
Wintertime management of Opinaca reservoir
For more information :MARTIN DESGAGNÉ, Advisor - Native Affairs and Projects 1 800 903-9705, ext. 4951This information bulletin is published by Hydro-Québec Direction régionale - La Grande RivièreCe document est également publié en français.
Average before diversionAverage after diversion
Maximum
Sarcelle powerhouse
Minimum
698,8 ft (213 m)± 2,3 ft (0,7 m)
708 ft (215,8 m)
694,8 ft (211,8 m)
Max. level
Min.. level
Nov. Dec. Jan. Feb. March AprilMonth
After diversionBefore diversion
Sarcelle powerhouse during the construction phase.
Note: Averages are provided for information purposes, to facilitate understanding. Water level data vary from year to year.
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