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Thank you that is exactly what i wanted to know & it is very clear now. Thanks again.

Hi Thanks for you reply, I am not sure I used the words switched off myself and i dont really mind if I was right or wrong but I do want to understand the process. Other replies here seem to indicate that when the "go off grid button" is pressed solar will charge the batteries until full but...

I think they are as you say trying to "stick it to the man", personally IF i was in his position I would have the attitude that as my batteries were full & my house had all the power it needed then any excess should go back to the grid and if it helps in any way to alleviate the need to spin up...

So is the result the same whether you press off grid or not if the batteries are full, the house needs are met by solar and you dont have an export tariff are the solar panels switched off until the there is somewhere for the solar energy to go?

Interesting, back to my original query, maybe I should have phrased it better & included the details about a lack of export Tariff but maybe I was right overall???

FWIW A friend uses the Off Grid mode simply to stop exporting any solar power when his battery is full as he doesn't have an export tariff with his power utility provider.

I see, I was taking it literally that the Tesla essentially isolated itself but I can see now how the solar panels are still able to charge the Powewall, thank you.

Can you settle an argument, my logic is that if I choose to go off grid from the App then ALL power for my house will come from the Powerwall and even if solar power were available from my solar panels it would NOT charge the powerwall while it is off grid.