On August 14, 2003 at 4:11 p.m., the lights went out for 50 million North Americans in what was the largest electrical blackout ever. Ontario counted on Bruce Power to help rebuild the grid. Here’s how we did it:

When you flick a switch to turn on a light in your home, you probably give very little thought to how the electricity gets from a power station to your home.

While few of us think about the electricity grid, we all count on electricity to just be there when we turn on a light switch or a coffee maker or set our alarm for the next day. We all count on it to be there every day.

Bruce Power’s Role

Bruce Power is the world’s largest operating nuclear facility and is Ontario’s private nuclear generating station. While Bruce Power is a private company, it leases the power stations and the Bruce site in a long-term lease from the Ontario government. Since forming in 2001, Bruce Power has invested billions of private dollars into publicly owned assets.

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Ontarians count on Bruce Power, the Independent Electricity System Operator and other power generators to ensure electricity is available when people need it most. Here’s how the system works together.





There are a number of players in the Ontario electrical grid. Here is an overview as to who the main players are in the Ontario electricity market and how they help get the power to you every day.