"I don't think powerwall has that functionality" From wikipedia "When originally announced in 2015, two models of Powerwall were planned: 10 kWh capacity for

"I don't think powerwall has that functionality" From wikipedia "When originally announced in 2015, two models of Powerwall were planned: 10 kWh capacity for backup applications and 7 kWh capacity for daily cycle applications" https://en.m.wikipedia.org/wiki/Tesla_Powerwall https://en.m.wikipedia.org/wiki/Tesla_Powerwall I take it the daily cycle applications include that functionality.