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Panels are very forgiving with regards to angle of incidence. Most are just mounted to a rack system like you see there so they are parallel to the roof deck.
15 years ago my sister's farm had a tracking array. It was supposed to follow the sun through the day but it was a maintenance PITA. Now you see more powerful arrays rigidly mounted. Maybe not quite as efficient, but hassle free.
Best
Les
__________________
Best
Les
My train of thought has been replaced by a bumper car.
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