Tesla has taken another step in expanding its Megacharger charging network, officially filing pre-permits for what will be its first public Semicharger station in San Antonio, Texas.
According to the pre-permit information uncovered by Supercharger sleuth Marco on X, the project calls for eight dedicated charging stalls to be installed at the Flying J Travel Center off Interstate 10 at North Foster Road, located on the east side of the city.
Until now, Tesla’s Megacharger infrastructure for the all-electric Semi truck has been limited to private facilities, primarily serving the company’s own operations and early partners. Sites such as PepsiCo’s Modesto distribution hub and Tesla’s Gigafactories in Nevada and Austin have been among the few with Semi charging access.
The San Antonio project marks a significant milestone: the first time the charging hardware will be installed for public or third-party fleet use.
By choosing a Flying J truck stop as its location, Tesla is showing its intent to integrate Semi charging into established long-haul routes. Interstate 10 is one of the nation’s busiest freight corridors, stretching from California to Florida, and a San Antonio site ensures coverage in the heart of Texas, a major trucking hub.
The Tesla Semi, first delivered to customers in late 2022, promises up to 500 miles of range per charge and a massive reduction in fuel and maintenance costs compared to traditional diesel trucks. However, its adoption will be limited by the availability of charging infrastructure.
Opening up access at public travel centers could help accelerate commercial fleet interest, especially among companies that want to electrify operations but lack the resources to build private charging depots.
Tesla’s own plans call for a Megacharger network consisting of 46 public charging locations by early 2027Â across California, Nevada, Arizona, New Mexico, Texas, and Georgia, with two sites also in Illinois.
While no official construction timeline has been shared, the filing of pre-permits is typically the first step before city approvals and site work begin. Once operational, the San Antonio station could serve as a blueprint for future Semicharger installations across the country.
