Hi. I have managed to piece together the following system in South Africa: 1 x MultiPlus 48/5000/70-100, Color Control GX , SmartSolar Charger MPPT 250/100 and 4 350watt panels connected in series. I have the ESS assitant running and want to set up so that PV runs as much loads as possible, to be subsidized with mains and batteries as back up. Batteries are unfortunately lead acid which was based on bad advice. 8 x 100 A/H but are all new. I have the ESS set on keep batteries fully charged but note that when AC loads are being drawn, PV stays on zero and Grid provides power. At other times PV provides some assistance to the AC loads but only really when batteries are being topped up in the float state or when AC loads are around 2000 watts. If I drop SOC to anything below 100%, PV becomes active all the time. Being lead acid batteries, I dont want to constantly draw off battery power if I can help it, I want the batteries for back up only with the intention of increasing my solar yield with more panels. Here in SA, it seems that there is little expertise on technical set-up for these units. I am learning bit by bit. Any advise on settings to help would be greatly appreciated. 
