You size your array to cope with poor conditions, not best conditions.
Worst conditions are when it's overcast, and not surprisingly the best alignment then is pointing straight up.
So there is a argument that pointing straight up, actually gives more power when it's needed (which would make trackers redundant).
I have two sets of panels: One is mounted at the approved angle, while the other is flat on the roof. The flat ones actually seem to do better in the winter.
I guess it depends very much on the seasons at your location.
You size your array to cope with poor conditions, not best conditions.
Worst conditions are when it's overcast, and not surprisingly the best alignment then is pointing straight up.
So there is a argument that pointing straight up, actually gives more power when it's needed (which would make trackers redundant).
I have two sets of panels: One is mounted at the approved angle, while the other is flat on the roof. The flat ones actually seem to do better in the winter.
I guess it depends very much on the seasons at your location.