I guess because at least for sun, some days are considerably shorter in winter and a reliable backup with batteries would cost too much, especially when conside

I guess because at least for sun, some days are considerably shorter in winter and a reliable backup with batteries would cost too much, especially when considering both batteries and solar should be replaced in a 20-40 yrs (just my guess). Also, since solar produces less energy in the winter, govt will be forced buying energy at higher/winter price to compensate. Offsore wind on the other hand looks promising for Canada, since they have access to 2 oceans, a lot of space to build there. Nuclear is also nice - reliable energy resource, they have fuel for it and since Canada has access to a lot of water, this can be really promising