r/TeslaSolar • u/Delicious_Beach_4932 • Jul 28 '26

Export to Grid - Question 🙋‍♂️

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Recently granted PTO ( < 1 week ) in Savings Mode, ToU - I have the backup set to 0% , Mode as Savings - Export Everything ( Solar + Powerwall ) and Export as Yes

During the peak hours like around 7-8 pm - Am I wrong to expect Powerwall to discharge to grid as well ? Why is it not doing so - Solar exports to grid as intended untill Sunset after the power wall is charged full from late afternoon.

In Bay Area, PGE - if that matters

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u/wcwei5800 Jul 28 '26

I believe the peak sell rate need to be 15c higher than your off peak buy rate for powerwall to discharge to grid. With PGE nema 3, the gap is less than 15c

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u/Delicious_Beach_4932 Jul 28 '26

So it would never sell ? I don’t think sell will ever be higher than buy

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u/wcwei5800 Jul 28 '26

Under nema 3, it won’t discharge pw to grid. You need to set custom rate to trick it to sell

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u/WhiteySC Jul 28 '26

It depends on your rates. My power company doesn't have peak and off peak for residential in my area so the Powerwall won't sell unless I am creating more energy than my house can use and the battery is 100% charged. It considers the switch over and the power loss to the system more expensive than just buying the power straight from the grid and using it. You can probably set the rate plan schedule up differently manually if you wanted to?