World Power Plants

St. Mary2 MW Hydroelectric

HydroRenewable

St. Mary is a 2 MW hydro power plant in Canada, operated by TransAlta since its commissioning year is not specified. Ranked #555 of 612 hydro plants in Canada, its 2 MW represents 0.002% of Canada's total hydro capacity of 102,715 MW. The largest hydro plant in Canada is Centrale Robert-Bourassa at 5,616 MW, making St. Mary 2,808 times smaller. Nearby plants within 50 km include McBride Lake (75.2 MW, Wind), Soderglen (70.5 MW, Wind), and Ardenville (69 MW, Wind). The facility is located in Alberta, approximately 150 km southwest of Calgary.

Capacity
2 MW
Commissioning Year
2001

25 years old

Owner
TransAlta (100%)
Location
49.3665°, -113.1087°

Canada, North America

Context & rankings
  • 1,147. largest of 1,334 plants in Canada
  • #33,917 worldwide by installed capacity
  • #7,437 of 8,493 Hydroelectric plants worldwide
Age & fleet comparison

25 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

TransAlta (100%) operates 23 plants totalling 1,006 MW

Regional density

30 plants within 100 km, 1,402 MW combined

Nearest plant: Magrath (11.8 km)

Data provenance

Location

Coordinates:: 49.366500, -113.108700
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

St. Mary is a hydro power plant producing approximately 7 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~24 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Hydro
Energy Source
Renewable
Country
Canada
Continent
North America
Data Source
Global Power Plant Database

CanadaEnergy Profile

1,334
Total Plants
193.2 GW
Total Capacity
HydroGasNuclearWind
Top Fuels

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