mattleonard
New Member
I have two Rich Solar 200w "24v" panels. I have tried each individually in perfect sun, with various orientations, on numerous days. I've used several different charge controllers (2 different Bluetti ac200max's, an Epever MPPT, and a Victron MPPT), and different cables to the controllers. At best I am able to get 95-100w out of either one, maybe a blip at 105w occasionally. Pretty far below the efficiency I'd expect.
What's weirder - when wired in series I see the voltage double as expected, but total wattage goes to maybe 120-130w combined something seems to be limiting the amperage. I'd expect the wattage to at least double - especially since I should less cable loss incurred due to the higher voltage.
Any ideas? Faulty panels? Not sure what other troubleshooting to try.
What's weirder - when wired in series I see the voltage double as expected, but total wattage goes to maybe 120-130w combined something seems to be limiting the amperage. I'd expect the wattage to at least double - especially since I should less cable loss incurred due to the higher voltage.
Any ideas? Faulty panels? Not sure what other troubleshooting to try.