I Have a Enphase istallation with 30x 415 Wp installed and aslo a 3 x home batteries(Sessy) of 5 kW each. How can PV output deal with this ? The batteries are programmed to do zero usage concumption of the grid. So as soon as we deliver back energie the batteries starts charging and at nigt time they deliver to drian their charge. How can PVoutput deal wih this to calculate effciency ?
kind regards Frans