pianotuna wrote:
Hi,
Thanks for sharing your end results with us.
Are the panels in series or in parallel?
He chose the Epever 3210 30A MPPT Solar Charge Controller
https://store.santansolar.com/product/epever-3210-30a-mppt-solar-charge-controller/
Good question. I ran them parallel based on some videos I saw regarding shading and efficiency.
After I read your question, it made me wonder...I could run them in series. This would double the voltage and cut the current in half. My voltage drop % would go from ~3.5% down to ~0.86%. My current solar charge controller could handle this if I wanted, but it is not big enough of a difference for me to worry about doing for now. But what also occurred to me is that if I wanted to expand my system in the future to 1000w, I could run a 2x2 (parallel/series) setup and still use the same 10AWG wiring I have as the max current would still only be ~16amps. I would need to upgrade my solar charge controller to a larger output capability. I don't anticipate doing this, but just a thought.
Happy Camping!
Chris
