Here's a chart showing where Canada's electricity comes from.
The majority is hydro, second is coal (yuck), and nuclear is third. Other sources only account for a small portion.
This graphic was taken from the Canadian government's About Hydroelectric Energy webpage. That page has some interesting stuff on it, so check it out if you're interested in energy.
Those who write on bathroom walls
Should roll their shit into little balls
And when they find their ounce of wit
They should eat those balls of shit.[quote database]