You might also be interested in my post on another thread about "leakage"
UK Only - Tesla Energy Plan/Octopus Energy
I'm happy that I didn't go ahead with this power plan. I had originally assumed that Tesla would tap into some solar generation forecasting to shift the solar export to the grid to later in the day and then, if necessary do some compensatory night time charging from the grid. The grid charging...
teslamotorsclub.com