Another solar panel question
Just wondering what the power loss would be from mounting my second panel flat instead of tiltable? I know tilt would be better power wise but thinking flat might be what we do, still deciding. Th...
Forum Discussion
Huge variation in results depending on location and time of year, orientation wrt South, and tilt angle wrt "optimum tilt" (see macslab site for that)
Much easier if you can just add some flat wattage and not have to fuss with tilting and orientation of rig wrt South.
Anyway, my measured results at 49.3N in May with 130w panel sunny all day: Flat 56AH, Tilted 70AH. (Panel rated 8.2a Isc) Flat 7.2a, Tilted 8.2a at high noon.
It is all proportional, so to get that same 70AH flat I would have needed 70/56 x 130 = 163w. So a 160w or a pair of 80s instead of the 130 would have done it----but only at that location at that time---so YMMV (a lot)
Much easier if you can just add some flat wattage and not have to fuss with tilting and orientation of rig wrt South.
Anyway, my measured results at 49.3N in May with 130w panel sunny all day: Flat 56AH, Tilted 70AH. (Panel rated 8.2a Isc) Flat 7.2a, Tilted 8.2a at high noon.
It is all proportional, so to get that same 70AH flat I would have needed 70/56 x 130 = 163w. So a 160w or a pair of 80s instead of the 130 would have done it----but only at that location at that time---so YMMV (a lot)
