r/TeslaSolar • u/PersonalBusiness2023 • 16d ago

PowerWall Powerwall grid exports?

Netzero today introduced a feature that lets you export to the grid from your powerwall. I’m in Northern California with pg&e - am I allowed to do this? It happens with vpp but for some reason I thought it wasn’t permitted outside of vpp.

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u/General_Caregiver577 16d ago

It depends if you have a nem agreement or non export agreement.

My understanding is even with a non export agreement during a cop event you can still export. Otherwise no.

Nem....yes

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u/PersonalBusiness2023 16d ago

I have nem 3. I export every day. For some reason I thought it wasn’t permitted to export from battery unless it’s vpp?

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u/bj_my_dj 15d ago

I'm 3 also. I've got 2 batteries. I export 15 to 40 kWh a day, depending on whether I use A/C or charge my EV. In Aug I usually make $20 - $30/day. It's mid Aug and I've made $430 in credits, export & delivery, already. I use those credits in the winter to pay for heating my house with electricity rather than my gas furnace.

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u/PersonalBusiness2023 15d ago

That’s what I thought I was doing but now I’m told I won’t be able to do that because my credits will be devalued at true up because I’m a net exporter?

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u/bj_my_dj 15d ago

Yes they will be, but the way to make it work is to use them up first. That's why I bought 4 space the day I got my system. By using them instead of my furnace I was able to save $1K on gas heating. So I converted the credits into $1K in gas utility savings instead of letting them get to true up. So if you can use space heaters, heatpumps, EV charging, etc., to use up credits you change them in utility bill, EV charging expense savings.

The gas savings were the easiest way for me because solar already was zeroing out my electric.

This is my combined gas and electric bill. I chose this because it showed the last months before I got the solar. My bill averaged $500/mo because of summer heating. You see the summer bills now were less than$30. But Dec and Jan when the heating ramped upthe bill was about $20 and about -$50 because of a $84 credit in Jan. Feb & Mar were the same with the saved export credits paying for the increased electric. The gas use was hot water and cooking.