Solar fuseing, confuseing
Were installing a Renogy 400 watt solar system on our fith wheel. We stay on our property about two months in the summer up near Canada in Washington.Anyway this is the kit I bought. Mind you I'm comp...
Forum Discussion
BFL13 wrote:red31 wrote:
they did mean Voc for OFF, no matter what voltage Voc is, there is no power open circuit, no watts, no amps! (that's why I don't like using Isc for PWM ;), no power, watts, voltage).
I had assumed it continued to track (MPPT) but now get it that it can't sweep during on/off.
I use "Isc" because that's what I get at the battery. Take the Isc with panel disconnected. Could be any number depending on how much sun there is. Connect up, ta da!-- same amps as you got for Isc now charging the battery. I don't know what else to call it for the purists. We need a name for it.
. (System check)
By definition, Isc is short curcuit current measured at the solar panel output. Zero resistance for a short circuit means you will see the maximum current the panel can provide. You will never see Isc with a battery hooked up in place of the short circuit because a battery has resistance which will limit the current provided by the panel.
