Forum Mobility Breaks Ground on 30 MW at Four California Truck Depots, and Tesla Will Run Three
- EVs Fleet & Depot Charging News
Marin Holt
- 0
- 7 minutes read
- New charging capacity: 30 MW
- New depots: Four
- Tesla-operated Megacharging sites: Three
- Tesla Semi reservations: More than 330
- Total capacity online and under construction: Over 40 MW
Forum Mobility said on September 17 that it will break ground on four electric truck charging depots in California. The four sites add 30 MW of heavy-duty charging capacity. Tesla will operate public Megacharging at three of them. The San Francisco company now counts 25 carrier customers with contracted capacity. It also holds reservations for more than 330 Tesla Semis and over 40 MW of charging online and under construction.
What Is Being Built
The four depots sit in Northern and Southern California. Tesla will run the public Megacharging at FM Francis in Ontario and at FM Adeline and FM Coliseum in Oakland. The fourth site is FM Santa Fe in Rancho Dominguez. It holds contracted fleet offtake for more than 330 Tesla Semis, and stays open to other drayage carriers.
Each depot mixes the Megawatt Charging System with conventional CCS ports. Forum Mobility says the MCS units add up to 60% of range in about 30 minutes. Pull-through lanes let a driver charge without unhooking the trailer, which removes a yard move from every stop.
Forum also added two Tesla MCS Megachargers to FM Harbor, its Port of Long Beach depot. That site has run since December 2024 with 44 CCS ports and 9 MW of capacity. Public money paid part of the cost. The funders are BAAQMD, the California Energy Commission, the California Transportation Commission and Caltrans, EnergIIZE, LA Metro, MSRC, SCAQMD and Southern California Edison.
Why It Matters
Tesla is operating chargers on real estate it does not own. Electrek reports that Tesla sells the Megacharger for $188,000 and takes $0.08 per kWh at third-party sites, which is 20% below its Supercharger for Business rate. The hardware runs the open MCS 3.2 standard, so it also serves trucks from Daimler, Volvo and Scania.
That split matters to anyone planning depot power. Tesla has 66 planned Megacharger locations on its map, and partner depots fill a large share of it. A fleet buying charging at FM Francis or FM Coliseum deals with Forum for the site and with Tesla for the dispenser.
The capacity numbers show how young this build-out still is. The new 30 MW is most of the “over 40 MW” Forum counts as online and under construction. The only operating depot the announcement puts a number on is FM Harbor at 9 MW. Forum lists its next tranche in the Inland Empire, the Central Valley, Las Vegas, Phoenix, Houston, Dallas, Seattle and Tacoma, and Chicago.
“The Port of Oakland is excited to work with Forum Mobility to deliver advanced clean truck solutions, for the benefit of our neighbors and our drayage carrier community,” said Kristi McKenney, executive director of the Port of Oakland.
Critical Perspective
Read the capacity figure carefully. Forum counts “over 40 MW online and under construction,” but the only operating depot it puts a number on is FM Harbor at 9 MW. The four depots announced here have not broken ground yet. Most of that 40 MW is a construction schedule, not energized steel, and the release gives no completion date for any of the four sites.
The demand claim rests on reservations. Forum cites 25 carrier customers and more than 330 Tesla Semi reservations, and it calls initial utilization high. A reservation is not a delivered truck, and Tesla has missed Semi volume targets before. Ask what the take-or-pay terms look like if those trucks arrive late.
The Tesla arrangement also splits the risk unevenly. Forum carries the land, the interconnection and the utility bill at each depot. Tesla sells the hardware at $188,000 a unit and collects $0.08 per kWh at sites it does not own. That is a good trade for Tesla. Whether it is a good one for Forum depends on utilization nobody has published yet.
Sources
- Forum Mobility press release, September 17, 2026 (PR Newswire)
- Tesla to run public Megachargers at 3 Forum Mobility Semi depots (Electrek)
- Forum Mobility expands California truck charging network (electrive)
