Wouldn't it be great if the Tesla charger would talk to the Powerwall inn a more sophisticated manner so it all worked a bit more seamlessly. Keep it all in one family so too speak.
I have a 5.9kW PV with Powerwall 2/Tesla Gateway plus the Tesla charger (which I believe is wired to the Gateway). The App has some intelligence regarding scheduling and cancelling out peak use, charging off peak and hints at having levels of intelligence but it's 'on or off' for charging cars really as far as I can see. Lengthy chats with my installer suggest that, whilst the Rolec is a top bit of kit, when you have several apps controlling several 'intelligent' devices but they don't talk to each other, setting a list of tasks, outside of designing an entire, multi-protocol control system on top becomes like juggling soot. Since the Powerwall is obviously aware of grid, solar shifts and scheduling (illustrated by the Tesla app Powerwall display), you'd think that adding the functionality found in the Rolec or Zappi into the Tesla side would be a given. I guess it's a side-effect of a dealing with a company growing so fast and they can't develop everything in one go.