Expectations from solar

Jun 14, 2010
2,350
Robertson & Caine 2017 Leopard 40 CT
The MPPT works more efficiently with one per panel, if there is any shading or difference in panel angle.
If the panels wired are in parallel it won’t be worth the cost of 2 controllers, added wiring etc. unless they are of different types. Each panel has diodes on the output so they won’t affect each other as much as if they were wired in series.
 
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