NR7

Thanks for all the info guys. Will see how many panels can fit as we are definitely limited by roof space. I was previously advised that you can't have panels on the same string in different directions due to shading so I imagine the below is impossible? It would be the only way to get to 7 panels per string instead of the 6 in the second image.

Hello everyone, With the repeated power outages in my gloriously well run ANC-EFF coalition city of Ekurhuleni near JHB, it's time for a more substantial investment in power which has led me here for advice. House of 3-4 people. Electric geyser for one bathroom with bath+shower (no timer yet). Two fridges. Aircon. Electric heater. Jojo pump used mostly during water outages. Gas geyser outside the other bathroom (shower) and gas heater for the lounge. 18kWh daily usage (10 during sunlight hours, 8 at night) excl stove which works out to 558kWh/R1950pm. Another 50kW for a stove which works out to R175pm. Plus the service fee of R240pm Looking at the following which would be for the whole house excluding the stove, and I think the stove would . Deye 12kW Hybrid Single Phase inverter. This is typically the maximum I see recommended by municipalities for our main switch which is 63a. The 12kW inverter is great for our peak loads and the 12kW single phase model offers a third MPPT over the 8kW. 2 x Deye 16kW Lithium Batteries. Costs a little more than 4x5.12kWh batteries for a lot of storage on a sunny day that should hopefully help if followed by a cloudy day. 10 x JA 605w bifacial N-type Topconn panels on a section of zinc roof that 345 degrees NNW on two MPPTs (5 panels each). 5 x JA 605w bifacial N-type Topconn panels on a section of zinc roof that is 75 degrees ENE. Would sadly be affected by a neighbour's large tree till around 8am (nope, owner won't trim it). Panels are 52.6v VOC * 5 = 263v, so adding 15% for temperature variation in JHB would be 302v which won't exceed the MPPT range of 150-450v. This would be maximising our generation, as the WSW side could only take 3 panels and the SSE side could only take 6 panels, both of which are worse than the ENE array. Based on measurements there might be a chance of making each array 6 panels instead of 5 (18 panels instead of 15) without exceeding MPPT voltage, but will see what fits comfortably during installation A neighbor with solar+gas also suggested switching the electric stove over to a gas 5 plate stove, with an electric oven that could then run on the inverter. But I must admit that I am a bit apprehensive about copper gas pipes running in the kitchen to an outdoor bottle which involves a significant length of piping and the cost would mean one less battery. Any advice is appreciated, this is all very new to me and involves a huge savings cost involved (paid off house so no home loan to draw from)