I am in Washington State visiting friends. There is a house in view with the north facing roof is covered with solar panels and the south side is completely shaded with tall trees. Either that fool got a huge government handout or was forced to install them for a building permit.
Knowing WA, undoubtedly both.
In the Tri-Cities area I get a great deal of amusement looking for houses with panels on the northern exposure. At 46.5°N latitude, that doesn’t get you much sun.