(2) The best arrangement of solar cells is always going to be a single tracking array on top of a hill. But, as costs drop the advantage of a tracking system needs to be balanced vs just adding more cells. Using solar cells in the far north is generally a bad idea, but there are applications where it's useful. EX: Really remote stations that people vary rarely visit.
jacquesm|14 years ago
I know: http://pics.ww.com/d/90257-1/IM000384.JPG ;)
But even that is not the most cost effective, and it is somewhat maintenance intensive compared to a static array.
This was in Northern Ontario.