Ahh, I have microinverters. So you're saying that you chose (or were recommended to use) a standalone inverter as you were unlikely to need to expand?
they said for my setup and the amount of shading that panels + DC optimizer (per panel) + inverter was the best/most effective solution.
my house is not optimal for solar due to the roof angles, im almost tempted to move and build a house specifically for solar. have a single 40° tilt curved roof slope with enough room for 50kW worth of solar panels and just have everything electric. Then for the garage, same setup, another 50kW, Battery shed 10kW

.
maybe i should just be my own utility company and buy a huge piece of farm land, setup a 1GW solar farm.
speaking of of this, apparently tesla's power wall is not Canadian electrical code authorized because the pack is too high voltage. The max is 48v.