Hi, we installed a 8kW pv system with 18 Canadian 330W panels, 2x 5 kW Synapse inverters and 14.5 Kwh battery storage. This is a most amazing setup and although the Synapse can't feed into the grid and thus we're a little cheaper, we are more than satisfied. I have a pre-paid meter and have added since 2019 about 4x R1000 for bad weather days and set the system on solar/battery/utility last and it works like a bomb. By 16:00 the batteries are usually fully charged and we make it through the night easily with the heat pump kicking in at 5 in the morning on battery and seldom moves across to utility. Not sure what I have set my batteries to discharge to but it is not below 50% to protect them. We have adjusted to pv and after 17:00 we only use electricity for fridge, lights, outside lights and TV and cook with gas. Washing machine is a new Bosch energy saving and fridge is Bosch AAA. All heavy electricity usage like ironing, dishwasher,welding ect we do during sunshine time and all is good.