Like I said your wire is way undersized. That means you are loosing approx 8 volts between your panels and charge controller or put another way burning up 8 volts x 25 amps = 200 watts on the wiring.
You need to upgrade your wiring to 10 mm.
Impossible to save money taking anything off grid. Just in battery replacement cost alone you are looking at paying 60-cent per Kwh the rest of your life plus inflation as battery prices rise you have to replace every few years. Nothing FREE about it.
You need to upgrade your wiring to 10 mm.
Impossible to save money taking anything off grid. Just in battery replacement cost alone you are looking at paying 60-cent per Kwh the rest of your life plus inflation as battery prices rise you have to replace every few years. Nothing FREE about it.
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