San Ramon, CA - Diablo Plaza - Tesla Supercharger

Of its 20 ports, 20 are DC fast. DC fast ports deliver direct current straight to the battery and are the ones used for quick stops on longer trips. That is about 5.3 times the California average of 3.7 ports per station. The registry lists one connector type: NACS (Tesla), the North American Charging Standard connector. The site is listed as a shopping center location.

San Ramon has 36 charging stations in the DOE registry with 373 ports. San Ramon, CA - Diablo Plaza - Tesla Supercharger accounts for 5% of the charging ports in San Ramon. Tesla Supercharger runs 6 stations in San Ramon. Statewide, California has 21,814 stations and 81,788 ports, the largest station count of the 51 states and DC. The biggest station in California, Viejas Casino and Resort in Alpine, has 432 ports.

Tesla's DC fast-charging network — the largest DC fast footprint in the US, increasingly open to non-Tesla EVs via NACS. Tesla Supercharger operates 3,280 stations in the registry across 51 states, with 40,183 DC fast ports in total. 697 of those stations are in California, 3% of the state's 21,814.

“Available” means the station is open and in service according to the DOE registry. Its access code is public, meaning it is listed as open to any driver. It opened on Apr 4, 2019, one of 423 stations in California with a 2019 open date. The station's record was last updated at the source on Jun 18, 2026.