Ontario Power Generation (OPG) is an Ontario-based electricity generation company whose principal business is the generation and sale of electricity in Ontario. We are committed to operating in a safe, open and environmentally-responsible manner.


As one of the largest producers of electricity in North America, OPG operates 65 hydroelectric, 5 fossil and 3 nuclear stations (Pickering A, Pickering B and Darlington Nuclear, located in Durham Region) producing more than 21,000 megawatts of electricity. In fact, OPG owns one of the most diversified, low cost and low emission portfolios. Our commitment is to continually improve the efficiency of our generating stations  and  we are dedicated to minimizing our environmental footprint.