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like, instead of getting a mppt, for 20% gain under ideal condition for extra $100, just add another 300w panel on top. that would shield your roof from the sun's rays.

you can consider solar panels as a battery. sure it's good to match all the battery and in line, but if you are using it in parallel, in small quantity, small gains you get from all the mppt and amperate balancing won't make much difference, not to pay out in the long end. unless you got some...

planning a wide, weather resistant wood frame cradling the length of the panels. rubber insulated mounting.

yeah :D and my budget.. $1000  including mppt :P

also, planning a battery building event using lithium cells instead of the heavy 6v trojans. goal is to have a lighter, more efficient battery bank. TBD. https://www.facebook.com/events/862056123972394/

hey, thanks for letting me know! this is a closed group, called 'free camping life'. very much interested in the open road and rv life. we are looking for group of people to help each other installing rooftop solar on our vehicles. we are looking to do it very inexpensively. using 24v, 300w...