phemens wrote:
yep, I just checked, they're Canadian Solar panels, about 37 volts. The MPPT can handle up to 100v. Website calculator says 2% loss at 30 feet at 75v with 16 gauge.
Note that you do the ampacity at Vmp for max amps when using MPPT
Also confirm the calculation is both ways (round trip)
This calculator (scroll down) says you get 17% drop with #16 at 24v and 50 ft round trip with 10 amps. #8 is 2.x %
https://www.powerstream.com/Wire_Size.htmI use this but wait till it us on sale for $16. It comes on sale every so often, was on sale recently, so have to wait a while now I guess. Comes in red or black.
https://www.princessauto.com/en/detail/8-gauge-25-ft-primary-wire/A-p8216871e
