Tesla has announced a plan to build additional DC fast-charging infrastructure to support the upcoming market launch of its Tesla Semi electric trucks. The initial rollout will include 46 Megacharger locations, which are expected to be ready by early 2027.

Dan Priestley, who leads the engineering and program development of the Tesla Semi, revealed that the first public charging stations for the Semi will be ready this year at the 2025 Advanced Clean Transportation Expo.

The chargers, based on Tesla’s V4 power electronics cabinets, will have an output of up to 1.2 MW. The main difference compared to the Supercharging version, which can supply up to 500 kW per stall (and connect up to eight stalls), is the Megawatt Charging System (MCS) connector and cable ready to sustain over one megawatt of power.

Dan Priestley revealed that the first 46 stations will have a combined installed power capacity of over 300 MW. It translates to an average of roughly 6.5 MW per site. Assuming that one charger has a power output of 1.2 MW, there will be 5-6 chargers and potentially twice as many V4 (MCS) charging dispensers at an average site.

Some of the projects are already underway. We recently saw the first permit filings for Tesla’s Megacharger stations. On top of that, third-party networks plan to build their own stations with Tesla V4 chargers — like WattEV.

Dan Priestley’s presentation at the 2025 Advanced Clean Transportation Expo was captured by our friend Kyle Conner (@itskyleconner / X) and shared by Out of Spec BITS channel:

Besides 1.2-MW fast charging, Tesla is also working on an overnight charging solution — an equivalent to the Tesla Destination network (AC) for light-duty vehicles. It will be interesting to see more details about that as they are released, as it most likely will have to be a DC solution due to the high battery capacity of hundreds of kilowatt-hours.

The Tesla Semi factory in Nevada is expected to produce the Tesla Semi at a very high volume. Tesla has mentioned that the plant’s full capacity is up to 50,000 units per year, although the initial ramp-up will most likely be much smaller.