Added Some Boondock
My trailer came with a group 24 battery. Upgraded 2 years ago to group 27 and had 2 GC2 six volt on the ground hooked in parallel. Last 3 weeks in the heat, installed 2 grape solar 180 watt panel...
Forum Discussion
Gjac wrote:
That is a very nice setup you built. I always wondered how much more efficient the tilted panels are over flat? Also if you park in the shade of trees what does that do to the efficiency?
Early morning tilting can be 15-30% more power than flat.
Have not had true shading test yet, however almost every day since last week it has been REALLY overcast/rain. I was shocked that the 9.77 Amp short circuit and 24.06 Open circuit Voltage panels were delivering 20.3 amps according to the MPPT controller. It really shines in overcast conditions. When full sun and really hot panels it puts out 19-20 amps.....losing efficiency due to AZ heat but better than with PWM.
