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McArthur Generating Station

McArthur Generating Station
  • Construction started 1952;
  • Construction completed 1955;
  • Cost $24 million;
  • Capacity 55 MW;
  • Average annual generation 380 million kWh;
  • Waterfall drop 7 m;
  • Powerhouse:
    • Length 177 m.
  • Eight turbine generators (units) (each turns at 85.7 rpm);
  • First unit in service 1954;
  • Units' discharge capacity 996 m3/s of water;
  • Forebay area 115 km2;
  • Forebay's normal water level 254.8 m;
  • Eight spillway gates, each measuring 177 m (structure is .8 km east of powerhouse);
  • Spillway's discharge capacity 4,528 m3/s of water;
  • Transmission lines:
    • Two 115-kV (one each to Pine Falls and Seven Sisters generating stations).
The Winnipeg River - McArthur Running time (2:40)
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Watch a short video on the history and development of this generating station.

Watch all the videos in the Winnipeg River series.

In 1952, 50 years after the waters of the Winnipeg River were first used for the generation of electricity, construction began on McArthur Falls Generating Station. Its eight turbine generators (called units) have a 54 MW capacity and can produce, when water conditions are ideal, an average of about 380 million kilowatt-hours (kWh) of electricity per year.

Now known as McArthur Generating Station, it is the smallest and newest of the six generating stations operating on the Winnipeg River.

McArthur is located about 120 kilometres northeast of the City of Winnipeg.

More information on the McArthur Generating Station.