That is true when a user receives SGIP funding in California and has to sign a paired storage agreement. I have not seen that language in my NEM agreement but that was for a GT system without batteries. Where have you seen that restriction or language?
wow what crybabies
Does this limit the grid feeding from the batteries or from solar or both?
Yes same questions I have. Also, I have understood that the PCS certification is basically a mode that doesn't allow imported power to then be exported not a kw restriction (maybe this is an incorrect assumption). Also, is this restriction a kWh number or just max allowed kw to discharge to the grid?
There are multiple PCS modes and some inverters only support one, others support multiple. You are correct that a lot of the PCS modes rule out the export of imported energy, but some are dumb like prohibiting all export from storage.
It is not necessarily solved.
There’s three pages of restrictions on NEM2 Storage in Rule21 for PG&E. I don’t think I have them bookmarked unfortunately.
I don’t see a problem with limiting exports from imported power. You are not on a wholesale compensation rate, rather a subsidized retail rate. That retail export to import spread is a huge arbitrage opportunity
Do not ever order anything without interconnect pre approval and permits stamped. There is much more downside than upside
Frankly I wouldn’t recommend it unless one of the top techs from EG4 sits down with a California customer with the most restrictive POCO, pushes it through end to end to PTO, and converts this to internal documentation.
gotcha, makes sense, thank you
I do not have interconnect approval other than my NEM 2.0 agreement from 2021 for my 8kW GT system. I do have permitted plans approved by the County for my SolArk 12k and four Pytes V5 batteries in an outdoor enclosure. It will be Rule 21 compliant but in Non Export mode so I do not intend to to apply for interconnection. There is a PG&E document entitled PG&E Back-Up Power Installation Guide {attached below} that says if I have it connected via a Break before Make device I am not required to apply for an interconnecton.
That makes sense to me. However this PDF is kind of weird. The transfer method is orthogonal to the power source. I believe you can combine break before make with a high speed switch (though maybe not a mechanical one).
Most all manual transfer switches Break before Make so that is all the is is necessary. Rule 21 does not say anything that I could find about limiting Export to only solar, but that language is clear in a NEM PS {Net Energy Metering Paired Storage} agreement which I assume one signs if they get SGIP funding or applies for a NEM PS. I do not know how NEM 3.0 ( also called NBT or Net Billing Tariff) affects that.
I believe a UL108 transfer device is automatic. In that case an interconnection agreement is required. A manual tranfer switch which is Break befoer Make, lets you skip the interconnection requirement according to that document, and that is the strategy I am using.
You can do whatever you want (assuming it's legal) with the power you buy from them.
Maybe worse support from SolArk and EG4 because it’s not a partnered battery so they’ll point fingers at each other instead of being incentivized to help.
