Ontario Power Generation (OPG) is the provincial Crown corporation responsible for generating approximately half of Ontario's electricity. OPG operates nuclear stations at Pickering and Darlington, major hydroelectric facilities at Niagara Falls and across northern Ontario, and various thermal and renewable plants. As a government-owned utility, OPG invests in generation infrastructure to meet provincial needs while balancing electricity costs. OPG's nuclear refurbishment and expansion plans, renewable energy development, and facility locations significantly affect host communities. Municipalities near OPG facilities benefit from property taxes and employment but also address emergency planning and community impact considerations.