In Norway heating is needed during winter, and there is 0-6 hours of daylight depending on how far north you go. Going north from wherever in the world you thi

In Norway heating is needed during winter, and there is 0-6 hours of daylight depending on how far north you go. Going north from wherever in the world you think about, there exists a point where heat pumps become profitable. (Eventually you drop the solar panel and only go heat pump though.)