Is there enough sunlight in Ontario for a solar PV project to provide a good return on investment?
Yes, Southern Ontario receives more sunlight than other places where solar has become a significant contributor to the grid, such as Germany and Japan. According to Natural Resources Canada the yearly PV potential in Toronto is 1161 kWh/kW, whereas in Berlin it is 848 kWh/kW and Tokyo 885 kwh/kW for south-facing panels tilted to latitude. If all the PV systems in Germany were placed in southern Ontario, they would produce 25% more electricity given Ontario’s PV potential.