A couple of searches reveals..
Ontario generates a significant amount of electricity, producing around 148.3 terawatt-hours (TWh) in 2021, which accounted for about 24% of Canada's total electricity generation. The province has an estimated generating capacity of 39,569 megawatts (MW).
Ontario's electricity comes from a diverse mix of sources:
- Nuclear power: The largest contributor, providing about 55% of the electricity.
- Hydroelectric power: Supplies around 24%.
- Wind energy: Accounts for 8%.
- Solar energy: Contributes 4%.
- Natural gas and bioenergy: Make up the remainder.
This mix ensures a reliable and mostly low-carbon electricity supply for the province. Ontario's nuclear plants, like Bruce Power and Darlington, are among the largest in the world and play a key role in meeting the province's energy needs.
Ontario has a robust electricity distribution system, supported by 61 local distribution companies (LDCs). These companies ensure electricity reaches homes, businesses, and industries efficiently. The province has also introduced interactive grid capacity maps to improve transparency and streamline infrastructure projects. These maps help identify areas with high or low grid capacity, making it easier to plan for future energy needs.
Ontario's electricity distribution system is designed to handle growing demand, but challenges like aging infrastructure and increasing electrification (e.g., electric vehicles) require ongoing upgrades and investments. The government and utilities are actively working on solutions to maintain reliability and meet future needs.
Sounds like Ontario is well on the way.. But I agree distribution is always going to be the biggest hurdle no matter where you are.