JES2
Member
JES2, as long as the feed-in tariff when you export power during Peak periods is at the same rate as you use grid power at that time, it shouldn't matter what Tesla is doing to satisfy the CA SGIP mandate. Say you hit Peak and you start exporting solar power while running off the battery. At some point you will likely hit the Reserve level and the battery will peter out during Peak and you will start using grid power. But a lot of that grid power will be simply a turn-around of what you had just fed into it during Peak, which means your net cost is zero compared to if the solar were to be, instead, helping you feed the house along with the battery. So, no harm done.
Where it gets messed up is if your feed-in tariff is at a discount compared to what you pay from the grid operator at that time. If you pay, for example $0.35 a kWh during Peak yet they accept your input at $0.30 a kWh, then you're getting the short end of the stick here.
Explain your set-up to me. When does your grid operator describe Peak periods? Shouldn't you be using Advanced Cost Savings?
The plan in Texas that I am on does not compensate me for sending power to the grid. No feed in tariff. The plan is pretty basic. I pay $0.23 per kwh from 6 am to 8 pm. After 8 pm until 6 am, the energy is completely free, regardless of amount.