'Ontario is not a great fit for solar power. We are a cloudy region, and winter, when future heat pump demand will be high, offers brief daylight hours,' says columnist Roughly 60 per cent of Ontario’s electricity is derived from nuclear reactors, making it one of the world’s most nuclear-dependent jurisdictions. Only France is more nuclear-reliant. Next door, Germany just closed its last three reactors. Since nuclear power is largely carbon-free, it offers an advantage in a world trying to lower carbon emissions. However, our CANDU reactors are nearing their expiry dates and will need replacement within two decades. Our…