460 watt solar setup: wire sizes?
I want to change out my old 50 watt panel and 10 amp controller with at least one and hopefully two 230 watt 24 volt panels and whatever controller would be best. Right now the roof on my fifth wheel ...
Forum Discussion
pianotuna wrote:
Hi Almot,
The Tristar 45 is less efficient than the Tristar 60, and would allow for any further expansion.
Tristar 60 leaves room for expansion, yes, approximately one more 250W panel.
As to the efficiency - their manual doesn't make any distinction btw model 45 and 60, and at Vmp = 66 and current 25A-45A the graph shows ~94% efficiency (Rogue has ~96%). Interesting finding - I wouldn't have noticed if you didn't touch the subject - thanks. It means that Rogue works better within 30A range, until 30A clipping exceeds 0.6A (after this point Rogue clipping kills more power than lower efficiency of Tristar).
It also shows significant drop in efficiency at Vmp = 98, i.e. 3*250 panels in series VS just 2*250, but this is to be expected.
