You may have luck getting through to these folks at the the California Office of Planning and Research (OPR). They're supposed to be the state-wide committee coordinating with local AHJ’s for the implementation of
SB 100 (100% clean energy act 2018).
opr.ca.gov
opr.ca.gov
They have published a
California Solar Permitting Guidebook and are working on an
Energy Storage Guidebook.
Also in scope is
AB 546 (2017) which requires all jurisdictions in California to make all documents and forms associated with the permitting of advanced energy storage available on a public website by January 31, 2019.
I contacted the OPR when both PG&E and Contra Costa County's were making things prohibitively difficult for my solar and ESS. The OPR helped me open a dialogue with CoCoCo's permitting department to figure stuff out (mostly around bollards and disconnects; hence my baller azz avatar). And I was able to get someone at PG&E's interconnection team / Rule 21 to respond to me as well. Although the OPR said they could not assist in the matter where a PG&E T-Man took it upon himself to screw me and my family since they felt that was more of a civil matter and PG&E had jurisdiction to screw whoever they want since they're PG&E.
So while I don't think the OPR is able to help you directly, they may be able to point you to a SME that can lend an empathetic ear to move forward.
In a more weird approach, you can contact your local AG office and assert that your local permitting department is in violation of SB 100 and AB 546. Since the permitting office is not cooperating with you for a solar and ESS install and you are a taxpaying citizen attempting to do your part under SB 100. It also sounds like your local permitting office has failed to comply with AB 546 since you and your licensed installer don't actually know how to comply with their permitting process for an ESS. While I cannot imagine an AG actually filing suit, they may be able to help you to figure out who to interact with so you (and the permitting department) properly execute their requirements under SB 100.