Develop Remaining Commercially-Viable Hydro

Today, about 200 operating hydroelectric plants produce over 8,000 megawatts of electricity. This hydropower makes up the vast majority of Ontario’s total renewable energy supply.

  • Most of Ontario’s large waterpower sites have been developed and many of the existing sites have been refurbished.
  • Developing the remaining commercially viable sites and upgrading others will make a modest but strategically valuable contribution to expanding Ontario’s low-cost, low-carbon electricity supply.
  • Hydroelectric power, together with greenhouse gas emission free nuclear generation, provides Ontario with one of the lowest-carbon electricity systems in the world. These sources also supply more than 70 percent of Ontario’s electricity.