Test Method PWM vs MPPT ?
I might get a chance to compare MPPT with my PWM on the set of two 100w panels. I get 12.6 (Isc) now with PWM so that is the "standard" I was thinking of a quick connect set-up to swap controllers...
Forum Discussion
elkhornsun wrote:
My setup provides 3-4 times the charging capability that we have ever used. I optimized everything in the installation and in the equipment selection. I now know it was overkill. Once the batteries are back to 100% and it is 10 AM the rest of the potential output from the panels has zero value.
Not true at all. Everything you power from that point until the system goes to sleep is powered directly by the panels without the losses associated with discharging and charging a battery. That is as close as you will get to free power. Unless you spent a whole lot of unnecessary money in "overkill" what you did was the right thing to do. As time goes on I think you'll find more uses for your "extra" power. I think too many people undersize and then are unhappy with what solar can do for them.
