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Honestly, if I’m not getting paid to put zero carbon electricity in the car on Sunday morning there will be a stern letter to the management. Look how those isobars are packed.
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@Mark Koek Depends on the system. I have a Moixa inverter controller which automagically charges batteries when electricity is cheap and sells electricity to the grid when it’s expensive. (Or switches rapidly between buying from the grid and selling back when export prices are greater than import prices)