Name Location Capacity (MW ) Date Owner 635294 Generating Station 48°25′31″N 80°18′21″W / 48.42528°N 80.30583°W / 48.42528; -80.30583 (635294 Generating Station ) 0.522 May 1987 635294 Ontario Inc. [ 45] Abitibi Canyon Generating Station 49°52′40″N 81°34′15″W / 49.87778°N 81.57083°W / 49.87778; -81.57083 (Abitibi Canyon ) 349 Ontario Power Generation [ 46] Aguasabon Station 48°47′33″N 87°6′44″W / 48.79250°N 87.11222°W / 48.79250; -87.11222 (Aguasabon Station ) 51 Ontario Power Generation [ 46] Alexander Station 49°9′2″N 88°20′57″W / 49.15056°N 88.34917°W / 49.15056; -88.34917 (Alexander Station ) 68 Ontario Power Generation [ 46] Andrew Generating Station 46°30′52″N 84°20′50″W / 46.51444°N 84.34722°W / 46.51444; -84.34722 (Andrew Generating Station ) 47 1938 Brookfield Renewable Power [ 47] [ 48] Appleton Hydroelectric Dam 44°15′13″N 88°24′35″W / 44.25361°N 88.40972°W / 44.25361; -88.40972 (Appleton Hydroelectric Dam ) 1 TransAlta [ 26] Arnprior Station 45°25′08″N 76°20′52″W / 45.41889°N 76.34778°W / 45.41889; -76.34778 (Arnprior Station ) 82 1976 [ 49] Ontario Power Generation [ 50] Aubrey Falls Mississagi River 162 1969 Brookfield Renewable Power [ 51] Auburn Generating Station Peterborough 2 Ontario Power Generation [ 46] Barrett Chute Station 45°14′43″N 76°45′36″W / 45.2452829°N 76.7600155°W / 45.2452829; -76.7600155 (Barrett Chute ) 176 August 6, 1942 [ 52] Ontario Power Generation [ 50] Batawa Trent River 5 Innergex Renewable Energy [ 53]
Big Chute Station Coldwater 10 Ontario Power Generation [ 46] Big Eddy Station Bala 8 Ontario Power Generation [ 46] Bingham Chute Station Powassan 1 Ontario Power Generation [ 46] Bracebridge Falls 45°02′19″N 79°18′31″W / 45.0386875°N 79.3085083°W / 45.0386875; -79.3085083 (Bracebridge Falls ) 2.6 Lakeland Holding [ 54] Brewer's Mills Generating Station Seeley's Bay 0.9 1939 Energy Ottawa [ 55] Brian J. Gallagher Generating Station Almonte 4.6 2010 Mississippi River Power Corp. Burgess Creek (Mill Stream) Generating Station Bala 0.14 KRIS Renewable Energy [ 56] Burk's Falls 45°37′10″N 79°24′42″W / 45.6194218°N 79.4115669°W / 45.6194218; -79.4115669 (Burk's Falls ) 1.1 Lakeland Holding [ 54] Calabogie Station Renfrew 4 November 1917 [ 57] Ontario Power Generation [ 50] Calm Lake Generating Station East of Atikokan 9 H2O Power LP [ 58] Cameron Falls Aux Sables River 4 Brookfield Renewable Power [ 51] Cameron Falls Station Nipigon 87 Ontario Power Generation [ 46] Campbellford Hydroelectric Dam Campbellford 4 Algonquin Power [ 59] Caribou Falls Station Caribou Falls, Kenora District 91 Ontario Power Generation [ 46] Carmichael Falls Generating Station Cochrane 20 Brookfield Renewable Power [ 60] Cascade Street Generating Station Parry Sound 3.1 2017 Lakeland Power [ 61] Chats Falls Generating Station [ note 1] 45°28′30″N 76°14′18″W / 45.47500°N 76.23833°W / 45.47500; -76.23833 (Chat Falls ) 96 Ontario Power Generation [ 62] [ 63] Chaudiere #2 Generating Station Amelia Island Ottawa 8.4 1892 by E.H. Bronson Energy Ottawa [ 64] [ 65] Chaudiere #4 Generating Station Ottawa 9.3 1900 Energy Ottawa [ 66] Chenaux Station 45°35′06″N 76°40′25″W / 45.5849116°N 76.6736698°W / 45.5849116; -76.6736698 (Chenaux ) 144 Ontario Power Generation [ 50] Coniston Station Sudbury 5 Ontario Power Generation [ 46] Crowe Bay Station Trent Hills 2 Hydro One Current River Generating Station Thunder Bay 0.5 January 1987 Current River Hydro Partnership [ 67] Crystal Falls Station Sturgeon Falls 8 Ontario Power Generation [ 46] DeCew Falls I Generating Station 43°07′07″N 79°15′50″W / 43.1185199°N 79.2640185°W / 43.1185199; -79.2640185 (DeCew Falls I ) 23 Ontario Power Generation [ 68] DeCew Falls II Generating Station 43°07′08″N 79°15′41″W / 43.1190055°N 79.2613578°W / 43.1190055; -79.2613578 (DeCew Falls II ) 144 Ontario Power Generation [ 69] Des Joachims Station 46°10′52″N 77°41′45″W / 46.181108°N 77.695785°W / 46.181108; -77.695785 (Des Joachims ) 429 Ontario Power Generation [ 50] Dryden Dryden 3 1986 Macquarie Power & Infrastructure [ 70] Dunford Generating Station Scott 45 1908 Brookfield Renewable Power [ 71] Ear Falls Station Ear Falls 22 Ontario Power Generation [ 46] Elliott Chute Station Powassan 2 Ontario Power Generation [ 46] Eugenia Station Grey Highlands 6 Ontario Power Generation [ 46] Fenelon Falls Station Trent–Severn Waterway 2.6 Shaman Power Corp Fort Frances GS Fort Frances 10 H2O Power LP [ 58] Francis H. Clergue Generating Station Sault Ste. Marie 52 Brookfield Renewable Power [ 47] Frankford Station Frankford 3 Ontario Power Generation [ 46] G.W. Rayner Mississagi River 46 Brookfield Renewable Power [ 51] Galetta Hydroelectric Dam Almonte 2 TransAlta [ 26] Gananoque Generating Station Gananoque 0.7 1939 Energy Ottawa [ 72] Gartshore Generating Station Sault Ste. Marie 23 Brookfield Renewable Power [ 47] Glen Miller Trenton 8 Innergex Renewable Energy [ 53] Shand Dam Belwood Lake 0.6 Grand River Conservation Authority [ 73] Conestogo Dam Conestogo Lake 0.6 Grand River Conservation Authority [ 73] Guelph Lake power plant Guelph Lake 0.1 Grand River Conservation Authority [ 73] Hagues Reach Generating Station Campbellford 4 Ontario Power Generation [ 46] Hanna Chute Generating Station Bracebridge 1 Ontario Power Generation [ 46] Harmon Generating Station Kapuskasing 141 Ontario Power Generation and Moose Cree First Nation [ 46] Harris Generating Station Wawa 13 Brookfield Renewable Power [ 60] Healey Falls Generating Station Campbellford 12 Ontario Power Generation [ 46] Heywood Generating Station St. Catharines 6.5 September 1989 St. Catharines Hydro Generation Inc. [ 74] High Falls (Ontario) 45°05′20″N 79°18′11″W / 45.0887723°N 79.3030661°W / 45.0887723; -79.3030661 (High Falls ) 2.3 Lakeland Holding [ 54] High Falls Station Carleton Place 3 Ontario Power Generation [ 46] Hogg Generating Station Sault Ste. Marie 19 Brookfield Renewable Power [ 47] Hollingsworth Generating Station Wawa 23 Brookfield Renewable Power [ 60] Hound Chute Generating Station 47°18′19″N 79°41′51″W / 47.3052004°N 79.6975172°W / 47.3052004; -79.6975172 (Hound Chute ) 4 Ontario Power Generation [ 46] Hurdman Dam Mattawa 0.57 Algonquin Power [ 75] Indian Chute Generating Station Elk Lake 3 Ontario Power Generation [ 46] Island Falls Generating Station-Mattagami Smooth Rock Falls 20 Under construction TransAlta [ 76] Island Falls Generating Station-H2O Power Smooth Rock Falls 40 1925 H2O Power LP [ 77] Jones Falls Generating Station Elgin 2.4 1949 Energy Ottawa [ 78] Iroquois Falls Generating Station Iroquois Falls 30 H2O Power LP [ 58] Kagawong Generating Station Kagawong 0.75 Oakville Hydro Energy Services [ 79] Kakabeka Generating Station Oliver Paipoonge 25 Ontario Power Generation [ 46] Kenora Generating Station Kenora 8 H2O Power LP [ 58] Kingston Mills Generating Station Kingston 1.9 1915 Energy Ottawa [ 80] Kipling Generating Station Kapuskasing 233 Ontario Power Generation and Moose Cree First Nation [ 46] Lac-Seul Station Ear Falls 12 Ontario Power Generation [ 46] Lakefield Generating Station Lakefield 12 Ontario Power Generation [ 46] Little Long Generating Station Kapuskasing 133 Ontario Power Generation and Moose Cree First Nation [ 46] London Street Dam Peterborough 4.1 Peterborough Utilities Long-Sault Rapids Dam Cochrane 16 Algonquin Power [ 81] Lower Notch Generating Station 47°08′21″N 79°27′15″W / 47.1390412°N 79.4541389°W / 47.1390412; -79.4541389 (Lower Notch ) 274 Ontario Power Generation [ 46] Lower Sturgeon Generating Station Timmins 14 Ontario Power Generation [ 46] MacKay Generating Station Sault Ste. Marie 62 Brookfield Renewable Power [ 47] Manitou Station Ear Falls 73 Ontario Power Generation [ 46] Marmora Dam Marmora 1 Shaman Power Corp Matabitchuan Generating Station 47°07′24″N 79°29′41″W / 47.1232496°N 79.4947261°W / 47.1232496; -79.4947261 (Matabitchuan ) 10 Ontario Power Generation [ 46] Matthias Generating Station Bracebridge 2.95 1950 Orillia Power Generation [ 82] McPhail Generating Station Wawa 13 Brookfield Renewable Power [ 60] McVittie Generating Station Sudbury 3 Ontario Power Generation [ 46] Merrickville Generating Station Smiths Falls 2 Ontario Power Generation [ 46] Meyersburg Generating Station Campbellford 5 Ontario Power Generation [ 46] Minden Generating Station Minden 4 1934 Orillia Power Generation [ 83] Misema Hydroelectric Dam Marter Township 3 2003 TransAlta [ 26] Mission Generating Station Wawa 16 Brookfield Renewable Power [ 60] Moose Rapids Hydroelectric Dam Sudbury 1 TransAlta [ 26] Mountain Chute Station Greater Madawaska 170 November 11, 1967 [ 84] Ontario Power Generation [ 50] Nairn Falls Dam and Generating Plant Nairn and Hyman 4.75 1915 Vale Limited [ 85] Nipissing Station Nipissing 2 Ontario Power Generation [ 46] Norman Generating Station Norman 10 H2O Power LP [ 58] Otter Rapids Generating Station 50°10′52″N 81°38′08″W / 50.1810755°N 81.635499°W / 50.1810755; -81.635499 (Otter Rapids ) 182 Ontario Power Generation [ 46] Otto Holden Station 46°22′42″N 78°43′43″W / 46.37833°N 78.72861°W / 46.37833; -78.72861 (Otto Holden ) 243 Ontario Power Generation [ 50] Pine Portage Station Nipigon 142 Ontario Power Generation [ 46] R. H. Saunders Station 45°00′28″N 74°47′34″W / 45.0077171°N 74.7928619°W / 45.0077171; -74.7928619 (R.H. Saunders ) 1,045 Ontario Power Generation [ 50] Ragged Chute Hydroelectric Dam 47°16′35″N 79°40′21″W / 47.2763575°N 79.6724546°W / 47.2763575; -79.6724546 (Ragged Chute ) 7 TransAlta [ 26] Ragged Rapids Generating Station Bala 8 Ontario Power Generation [ 46] Rankine power station [ note 2] 43°04′28″N 79°04′43″W / 43.0745°N 79.0787°W / 43.0745; -79.0787 (Rankine (decommissioned) ) Niagara Parks Commission [ 86] Ranney Falls Generating Station Campbellford 10 Ontario Power Generation [ 46] Red Rock Falls Mississagi River 41 Brookfield Renewable Power [ 51] Robert A. Dunford Generating Station Wawa 45 Brookfield Renewable Power [ 60] Sandy Falls Generating Station Timmins 5.5 1911–2010 Ontario Power Generation [ 46] [ 87] Scott Falls Generating Station Wawa 22 Brookfield Renewable Power [ 60] Serpent River Serpent River 7 Brookfield Renewable Power [ 51] Seymour Generating Station Campbellford 6 Ontario Power Generation [ 46] Shekak Generating Station Hearst 19 Brookfield Renewable Power [ 60] Sidney Generating Station Trenton 4 Ontario Power Generation [ 46] Sills Island Generating Station Frankford 2 Ontario Power Generation [ 46] Silver Falls Station Thunder Bay 48 Ontario Power Generation [ 46] Sir Adam Beck I Generating Station 43°08′57″N 79°02′40″W / 43.149094°N 79.0444851°W / 43.149094; -79.0444851 (Sir Adam Beck I ) 446 Ontario Power Generation [ 88] Sir Adam Beck II Generating Station 43°08′45″N 79°02′41″W / 43.1458533°N 79.0445924°W / 43.1458533; -79.0445924 (Sir Adam Beck II ) 1,499 Ontario Power Generation [ 89] Sir Adam Beck Pump Generating Station 43°08′40″N 79°03′36″W / 43.1444756°N 79.0599561°W / 43.1444756; -79.0599561 (Sir Adam Beck PGS ) 174 Ontario Power Generation [ 90] Smoky Falls Generating Station Kapuskasing 268 Ontario Power Generation and Moose Cree First Nation [ 46] Sonoco's Mill Dam Glen Miller 8 Innergex Renewable Energy South Falls Generating Station Bracebridge 5 Ontario Power Generation [ 46] Steephill Falls Generating Station Wawa 15 Brookfield Renewable Power [ 60] Stewartville Station 45°24′26″N 76°30′24″W / 45.4070902°N 76.5066433°W / 45.4070902; -76.5066433 (Stewartville ) 182 September 21, 1948 [ 91] Ontario Power Generation [ 50] Stinson Generating Station Sudbury 5 Ontario Power Generation [ 46] Sturgeon Falls Generating Station East of Atikokan 8 H2O Power LP [ 58] Thomas Low Generating Station Renfrew 4 September 2015 [ 92] Renfrew Power Generation [ 93] Toronto Power Generating Station [ note 2] Niagara Niagara Parks Commission Trethewey Falls Generating Station Bracebridge 2 Ontario Power Generation [ 46] Twin Falls Generating Station Iroquois Falls 22 H2O Power LP [ 58] Umbata Falls Marathon 23 Innergex Renewable Energy [ 53] Valerie Falls Generating Station Atikokan 10 Brookfield Renewable Power [ 60] Wabagishik Generating Station 46°18′56″N 81°31′16″W / 46.3156°N 81.5212°W / 46.3156; -81.5212 3.74 1909 Vale Limited [ 85] Wawaitin Generating Station 48°20′38″N 81°29′08″W / 48.3439566°N 81.4856386°W / 48.3439566; -81.4856386 (Wawaitin ) 13 Ontario Power Generation [ 46] Wawatay Marathon 14 1992 Macquarie Power & Infrastructure [ 94] Welland Canal Locks 1, 2 and 3 Welland Canal 6 Rankin Renewable Power [ 95] Wells Mississagi River 239 Brookfield Renewable Power [ 51] Whitedog Falls Station Kenora 68 Ontario Power Generation [ 46] Wilson's Falls 45°03′44″N 79°18′38″W / 45.0623477°N 79.3105012°W / 45.0623477; -79.3105012 (Wilson's Falls ) 2.9 Lakeland Holding [ 54] Total 8130.81