If you want to become self sufficient in electricity, the number of sun hours matters more than anything else. Low temperatures just means you need more insula

If you want to become self sufficient in electricity, the number of sun hours matters more than anything else. Low temperatures just means you need more insulation, and possibly geothermal of it gets too cold for a regular heatpump.But try to generate enough power with a solar panel when you get 3 consecutive months of almost no sun at all! The temperature isn't even the issue, the darkness is.