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An electrifying century

  • 1892 - electricity is first made in Ontario at Niagara Falls.
  • 1906 - the Ontario government creates the Hydro-Electric Power
    Commission to ensure power for all Ontarians.
  • 1910 - power lines start delivering electricity to towns across
    southern Ontario.

World's biggest generating station

  • 1925 - the largest generating station in the world (at the time) is completed in Niagara Falls. It is now known as Sir Adam Beck Generating Station.

The nuclear age dawns

  • 1962 - a small experimental nuclear generating station starts up in Rolphton on the Ottawa River.
  • 1970 - Ontario's electrical supply is merged into one synchronized grid.
  • 1971 - the first unit of the Pickering Nuclear Generating Station comes online.
  • 1974 - Ontario Hydro replaces the Hydro-Electric Power Commission.
  • 1977 - the first unit of the Bruce Nuclear Generating Station comes online near Kincardine.
  • 1989 - the first unit of the Darlington Nuclear Generating Station comes online near Clarington.

OPG is created

  • 1999 - Ontario Hydro is divided into three companies, including Ontario Power Generation.
  • 2006 - OPG launches the Learning Zone - this website - to provide information to young people in Ontario and beyond.

OPG Historic Calendar and Timeline