By VoltAdminΒ·4 replies
California's Public Utilities Commission has issued a rule requiring all new DC fast chargers in the state to support CCS, CHAdeMO, and NACS by January 2027.
Read the full article: /articles/california-dc-fast-charging-2027
The CHAdeMO inclusion is the politically interesting part. Nissan Leaf and Mitsubishi owners are a small percentage of California EV drivers but the CPUC kept them in the standard over network operator objections. At $2,000β4,000 per station retrofit, the cost is manageable and the coverage argument is sound.
The Supercharger retrofit requirement is what will actually change the charging landscape. Tesla NACS-only stations opened after 2024 need CCS adapters or multi-standard cables by January 2027 to stay eligible for state funding. Tesla has been expanding aggressively in California with state money β this is the CPUC using that funding relationship as leverage for interoperability. Straightforward policy mechanism.
The utility cost-recovery mechanism for retrofit expenses is the detail that makes this workable. Utilities that manage charging infrastructure can include qualifying retrofit costs in their rate cases, which spreads the cost across ratepayers rather than requiring upfront capital from station operators. Without that provision, some operators would just let funding eligibility lapse rather than retrofit.
I'm in Oregon, not California, but every multifamily EV conversation I have eventually references whatever CPUC just did, because the rest of the West Coast tends to follow a year or two behind. The utility cost-recovery mechanism KilowattKarl flagged is the part I'd actually want copied here before anything else in this rule. We're three bids deep into adding L2 for a 12-unit building and every single quote has the same problem: whoever installs it eats the full capital cost up front with no clear path to recover it through anything but raising rent, which nobody wants to be the landlord doing for an "EV amenity fee." A rate-case mechanism that spreads retrofit cost across ratepayers instead of dumping it on whoever happens to own the building is the kind of policy detail that actually changes whether multi-unit charging gets built, not just whether it gets mandated.
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