Great Falls Generating Station

• Construction started 1914 (halted due to WWI);
• Construction restarted 1919;
• Construction completed 1928;
• Capacity 136 MW;
• Average annual generation 750 million kWh;
• Waterfall drop 17.7 m;
• Powerhouse: length 116 m;
• Six turbine generators (units) (each turns at 138.5 rpm);
• First unit in service 1923;
• Units' discharge capacity 883 m³/s of water;
• Forebay area 10 km²;
• Forebay's normal water level 247.8 m;
• Spillway length (with four gates) 80 m;
• Spillway's discharge capacity 4,390 m³/s of water;
• Transmission lines:
  • Four 115-kV to Pine Falls, Selkirk and Winnipeg;
  • One 66-kV to nearby mines.

The Winnipeg River - Great Falls	Running time (2:35)
	Watch a short video on the history and development of this generating station. Watch all the videos in the Winnipeg River series.

Great Falls Generating Station, built on the Winnipeg River, has the distinction of being the oldest hydroelectric generating station owned by Manitoba Hydro. First producing electricity in 1922 – and still in service today – the station was developed by the Winnipeg Electric Railway Company, an early forerunner of today's electrical utility, Manitoba Hydro.

More information on the Great Falls Generating Station.