ajw22 said:Nice, and with plenty of space for battery expansion.
You've designed this for max 25kWh? I hope the case is really really well secured to the wall. It'll get quite heavy.
It looks like the battery case is well sealed, sitting outside in the sun. Have you measured how warm it gets inside the battery case? Heat is one of the killers of LiIon cells. You might want to put up some sort of shade. Or even add a thermostat controlled ventilation, if it should get hot inside.