The panels was oriented to the magnetic south. At that orientation, it has the most inclination to the sun since it is a fixed object. It would have been more efficient if it is a smart system that tracks the sun like this one below
https://m.youtube.com/watch?v=NfYW97GMuWQ
The roof is NOT flat. There is an degree of tilt, about 84°
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ah. thanks for the drawing. I think some people do not realize different latitudinal locations require different angled solar panels.
You are most welcome.
Oh cool. Yeah maybe you can install a rotary system in the future. I'd like to see some reading as to the efficiency over a month or something
@mobbs, I would definitely check for reading in due course. Making a rotary system is doable but much costlier and would make the system more complex but with the advantage of more efficiency in sun's harvest.