Hi @Coulomb I've installed 164.62 version but i have a problem when is about 15:30 and have a little clouds mppt is dropping voltage in about 110-98v and mppt is generating about 11w is it possible to make it 90v or lower, but lower starting amps. also i have another inverter copy of 11kw with 73.03 firmware which is starting in about 70v, and it is working great with mppt. Otherwise your firmware is great thank you very much