I am located in Portugal and just ordered 2 pcs of the Tesla Powerwall 2. I am still building my house so don't have yet a setup in place but want to build a solar system that will be compatible with the Powerwall 2. I am thinking of using about 60 poli 270W solar panels. As for the MPPT inverters I am thinking of using either the SMA Sunny Boy 5.0 or Fronius Fronius Primo 5.0-1 on a AC grid coupling setup. Therefore the 2 powerwalls 2 would be the AC~DC ones. Can you tell me if both SMA or Fronius are supported? Is there a list of supported MPPT inverters grid connected? Also if using 2 powerwalls 2 will the total AC output be of 10kW or the 5kW limit of the powerwall inverters remain? Thanks in advance.