Ontario Power Generation

As Ontario’s largest clean electricity generator, OPG produces about half of the province’s power using our diverse portfolio of publically-owned generating assets. Our nuclear stations are the clean-power workhorses in our fleet. We rely on them to produce stable base load energy with virtually no air pollution.

To maintain these valuable assets, we have started work on Canada's largest clean energy project - the mid-life refurbishment of the Darlington Nuclear Generating Station (GS). We’re also investing in the Pickering Nuclear GS to ensure it continues safely operating until 2024.

Hydroelectric power is a renewable resource that has fueled Ontario’s economic growth since the beginning of the 20th century. Today, it accounts for more than one-third of OPG’s electricity production. More than half of our hydro stations are over 80 years old, but thanks to ongoing maintenance and upgrades, they remain important contributors of clean, low-cost power in the province.