Tesla just took another step toward commercializing heavy-duty electric trucking in the United States. Tesla Energy has officially brought its first public Semi Supercharger, the Megawatt Charging System (MCS) station online in the Greater Los Angeles area, and it’s now officially open for Tesla Semi customers. These new MCS stations look similar to V4 Superchargers, but feature the MCS connector, which is exclusive to the Tesla Semi.
Located in Ontario, California, this new public charging hub is a major operational milestone for the Tesla Semi program. Up until now, Tesla Semis have been charged at private, closed-loop routes.
First Public Pull-Through Hub
According to the official listing on Tesla’s charging map, the new Megacharger site is located at 4265 E Guasti Rd in Ontario, close to the airport. The site can deliver up to 750 kW of power to Semis plugging in at the site.
This 750 kW output matches the charging hardware currently installed at private, early-adopter facilities like PepsiCo's Sacramento depot. At those speeds, the Semi is able to be topped up in under 45 minutes, which drastically reduces downtime for fleet operators.
The BP Pulse Partnership
Interestingly, this first public Semi charger isn't a standalone, Tesla-branded Supercharger lot. The Megachargers are actually located at BP Pulse's brand-new, ultra-fast electric truck charging depot.
The site serves as a multi-platform commercial charging hub for Southern California logistics routes. According to BP Pulse, the Ontario location features two 750 kW Tesla MCS pull-through bays exclusively for the Semi, installed alongside four 400 kW CCS pull-through bays designed to service other electric heavy-duty trucks from legacy automakers.
The MCS sites are currently exclusively for Semi, but will eventually open to other brands. Tesla’s Semi is not equipped with CCS ports, and there is currently no CCS to MCS adapter, so it is unable to use those legacy charging bays.
Another Milestone for Semi
Until today, the Tesla Semi has essentially been tethered to private infrastructure. The only active Megachargers were located behind closed gates at corporate customer facilities, or at Tesla's own factory locations in Nevada and Lathrop.
By finally deploying public, highway-adjacent Megachargers, Tesla is laying the groundwork for the Semi to handle long-haul, interstate trucking. With volume production of the Semi targeted for 2026 at the newly expanded Giga Nevada facility, the rapid deployment of this public MCS network will be the critical deciding factor in whether major fleet operators are willing to adopt the truck en masse.
