Solar Panel Voc-MPPT?
Wondering if there is any relationship between measured Voc and MPPT performance with a 24v panel. My 12v panel has a Voc rating of 21.9 and Isc of 8.2, but I often see 8.2ish when Voc is only 20....
Forum Discussion
Hi Ken,
So how does an MPPT controller "know" the voltage increase necessary?
I have added a switch so I can "force" equalization voltage when ever I so wish.
On an entirely different note I checked all electrolyte levels yesterday. Really there is almost no loss--the levels are about 3/4 of an inch above the plates. One set of batteries is 8 years old and the others are four years old. I attribute this--rightly or wrongly--to very low amperage charging.
So how does an MPPT controller "know" the voltage increase necessary?
I have added a switch so I can "force" equalization voltage when ever I so wish.
On an entirely different note I checked all electrolyte levels yesterday. Really there is almost no loss--the levels are about 3/4 of an inch above the plates. One set of batteries is 8 years old and the others are four years old. I attribute this--rightly or wrongly--to very low amperage charging.
ken white wrote:
Instead he focuses on a reduction of amps as a degradation of system performance which simply is not true especially when voltage increases to keep power constant...
