Just finished building my solar powered Skyshed 8'x10' roll off roof observatory this week.
Well, 99% done, need to do a few finishing touches.
Power is supplied by two 100w Renogy solar panels that tie into a Rover 40a MPPT controller that charges a 100ah SLA battery.
My power distribution panel is still a little messy, but the system works perfectly.
Due to HOA requirements, the roof is shingles. Rolls well, a little heavy but nothing I cant handle.