Eco-Worthy 12v solar panels, Now drifting to... mono vs poly
When I search here, the only Ecoworthy results I get are for their controllers. Does anyone have any experience with their 12v panels?
Forum Discussion
jrnymn7 wrote:
I worked out the average Ah's from Salvo's chart. The mppt put out an extra 6.5 Ah's in 10 hours. That's an extra 1.5% on my 430Ah bank. That makes for a staggering difference between doing a 70-84% with the pwm, and a 70-85.5% with the mppt!
Surely those extra 6.5 Ah's /day are well worth the extra hundreds of dollars for an mppt! That's gonna save me a whopping 5 minutes of generator run time AND about $0.05 in gas! :(
Yes but that only works with 12v panels. With 24v panels you have no option except to go MPPT. Nobody sells a controller that bucks 24 to 12 that is not MPPT. You can even go 48v. Apparently those inverters that go with 48v also have MPPT in them, so MPPT is not just for the solar controller.
You do have an option to say go two 12s and PWM or one 24 and MPPT. Then you juggle roof real estate, cost of panels, cost of controllers, thinner wire on the panel to controller run (same wire on the controller to battery run though because that run is 12v), ease of man-handling panels as portables, etc.
