Hydroelectric Generating Stations

(as at December 31, 2012)

A hydroelectric generating station is a plant that produces electric power by using water to propel the turbines, which, in turn, drive the alternators.

These power stations generate about a quarter of all the electricity used in the world. With access to vast water reserves, Hydro-Québec uses water to generate almost all of its energy output. In this way, the company helps reduce greenhouse gas emissions.

Name Watersheds River or other
watercourse  
Type Installed  
capacity  
(MW)1
Number  
of
units  
Head
(m)2  
Commissioning  
date3  
Tours  
Robert-Bourassa La Grande Grande Rivière Reservoir 5,616 16 137.16 1979–
1981
Yes
La Grande-4 La Grande Grande Rivière Reservoir 2,779 9 116.7 1984–
1986
 
La Grande-3 La Grande Grande Rivière Reservoir 2,417 12 79 1982–
1984
 
La Grande-2-A La Grande Grande Rivière Reservoir 2,106 6 138.5 1991–
1992
 
Beauharnois Fleuve Saint-Laurent Lac Saint-François
and canal
de Beauharnois
Run-of-
river
1,853 36 24.39 1932–
1961
Yes
Manic-5 Manicouagan Manicouagan Reservoir 1,596 8 141.8 1970–
1971
Yes
La Grande-1 La Grande Grande Rivière Run-of-
river
1,436 12 27.5 1994–
1995
Yes
René-Lévesque    (Manic-3) Manicouagan Manicouagan Run-of-
river
1,244 6 94.19 1975–
1976
 
Bersimis-1 Betsiamites Betsiamites Reservoir 1,178 8 266.7 1956–
1959
 
Jean-Lesage    (Manic-2) Manicouagan Manicouagan Run-of-
river
1,145 8 70.11 1965–
1967
Yes
Manic-5-PA Manicouagan Manicouagan Reservoir 1,064 4 144.5 1989–
1990
 
Outardes-3 Aux Outardes Aux Outardes Run-of-
river
1,026 4 143.57 1969  
Sainte-Marguerite-3 Sainte-Marguerite Sainte-Marguerite Reservoir 882 2 330 2003  
Laforge-1 La Grande Laforge Reservoir 878 6 57.3 1993–
1994
 
Bersimis-2 Betsiamites Betsiamites Run-of-
river
869 5 115.83 1959–
1960
 
Outardes-4 Aux Outardes Aux Outardes Reservoir 785 4 120.55 1969  
Eastmain-1-A La Grande Rivière
Eastmain
Reservoir 768 3 63 2011-
2012
Carillon Outaouais
(lower)
Outaouais Run-of-
river
753 14 17.99 1962–
1964
Yes
Toulnustouc Manicouagan Toulnustouc Reservoir 526 2 152 2005  
Outardes-2 Aux Outardes Aux Outardes Run-of-
river
523 3 82.3 1978  
Eastmain-1 La Grande Rivière
Eastmain
Reservoir 480 3 63 2006  
Brisay La Grande Caniapiscau Reservoir 469 2 37.5 1993  
Péribonka Péribonka Péribonka Run-of-
river
385 3 67.6 2007–
2008
 
Laforge-2 La Grande Laforge Run-of-
river
319 2 27.4 1996  
Trenche Saint-Maurice Saint-Maurice Run-of-
river
302 6 48.47 1950–
1955
 
La Tuque Saint-Maurice Saint-Maurice Run-of-
river
294 6 34.75 1940–
1955
 
Beaumont Saint-Maurice Saint-Maurice Run-of-
river
270 6 37.8 1958–
1959
 
McCormick4 Manicouagan Manicouagan Run-of-
river
235 7 37.8 1952  
Rocher-de-
Grand-Mère
Saint-Maurice Saint-Maurice Run-of-
river
230 3 24.3 2004  
Paugan Outaouais
(lower)
Gatineau Run-of-
river
217 8 40.54 1928–
1956
 
Rapide-Blanc Saint-Maurice Saint-Maurice Reservoir 204 6 32.92 1934–
1955
 
Shawinigan-2 Saint-Maurice Saint-Maurice Run-of-
river
200 8 44.2 1911–
1929
 
Shawinigan-3 Saint-Maurice Saint-Maurice Run-of-
river
194 3 44.2 1948–
1949
 
Manic-1 Manicouagan Manicouagan Run-of-
river
184 3 36.58 1966–
1967
 
Rapides-des-Îles Outaouais
(upper)
Outaouais Run-of-
river
176 4 26.22 1966–
1973
 
Chelsea Outaouais
(lower)
Gatineau Run-of-
river
152 5 28.35 1927–
1939
 
La Gabelle Saint-Maurice Saint-Maurice Run-of-
river
131 5 17.38 1924–
1931
 
Première-Chute Outaouais
(upper)
Outaouais Run-of-
river
131 4 22.26 1968–
1975
Yes
Rapides-Farmer Outaouais
(lower)
Gatineau Run-of-
river
104 5 20.12 1927–
1947
Yes
Les Cèdres St. Lawrence River Saint-Laurent Run-of-
river
103 11 9.14 1914–
1924
 
Rapides-des-Quinze Outaouais
(upper)
Outaouais Run-of-
river
103 6 25.9 1923–
1955
 
Grand-Mère Saint-Maurice Saint-Maurice Run-of-
river
67 4 25.61 1915–
1930
 
Chute-des-Chats Outaouais
(lower)
Outaouais Run-of-
river
92 4 16.16 1931  
Rapide-des-Cœurs Saint-Maurice Saint-Maurice Run-of-
river
76 6 22.69 2008–
2009
 
Rapide-2 Outaouais
(upper)
Outaouais Run-of-
river
67 4 20.43 1954–
1964
 
Rapide-7 Outaouais
(upper)
Outaouais Reservoir 67 4 20.73 1941–
1949
 
Chute-Allard Saint-Maurice Saint-Maurice Run-of-
river
62 6 17.83 2008–
2009
 
Bryson Outaouais
(lower)
Outaouais Run-of-
river
56 3 18.29 1925–
1949
 
Mercier Outaouais
(lower)
Gatineau Reservoir 55 5 18 2007  
Hart-Jaune Manicouagan Hart-Jaune Reservoir 51 3 39.6 1960  
Rivière-des-Prairies St. Lawrence River Rivière-
des-Prairies
Run-of-
river
54 6 7.93 1929–
1930
Yes
Chute-Hemmings Saint-François Saint-François Run-of-
river
29 6 14.64 1925  
Hull-2 Outaouais
(lower)
Outaouais Run-of-
river
27 4 11,58 1920–
1969
 
Sept-Chutes Sainte-Anne Sainte-Anne Run-of-
river
22 4 124.97 1916–
1999
Yes
Lac-Robertson5 Véco Véco Reservoir 22 2 38.5 1995  
Drummondville Saint-François Saint-François Run-of-
river
16 4 9.10 1910–
1925
 
Saint-Narcisse Batiscan Batiscan Run-of-
river
15 2 44.81 1926  
Chute-Bell Outaouais
(lower)
Rouge Run-of-
river
10 2 17.8 1915–
1999
 
Mitis-1 Mitis Mitis Run-of-
river
6 2 36.58 1922–
1929
 
Mitis-2 Mitis Mitis Run-of-
river
4 1 22.86 1947  
  1. Rated power
    The installed capacity of hydropower generating stations is equal to that of all the generators in winter operating conditions (water temperature at 5°C), except that at Brisay, Robert-Bourassa, Laforge-1, Laforge-2, La Grande-1, La Grande-2-A, La Grande-3 and La Grande-4, the installed capacity is equal to that of all the generators in summer operating conditions.
    The installed capacity of Rocher-de-Grand-Mère generating station is the maximum allowed under the operating permit.
  2. The head of water shown corresponds to the largest value (greatest height), if there are several values. The head varies with each generating unit. Refurbishment work may therefore change the water head value.
  3. Year of commissioning of first and last generating unit in each facility.
  4. McCormick generating station is operated by a limited partnership between Hydro-Québec (60%) and Alcoa (40%).
  5. Generating station not connected to the Hydro-Québec grid and operated by Hydro-Québec Distribution.

Thermal generating stations | Nuclear generating station | Generating stations under construction | Other sources of supply

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