Tesla Megachargers Go Public at Forum Mobility California Semi Depots

Tesla’s Semi story is no longer just factory tours—it’s who hosts the plugs. On September 17, 2026, Forum Mobility announced groundbreaking on four California electric-truck depots; TechTimes coverage on September 18 detailed that Tesla will operate publicly accessible Megacharging at three of them.

The three public sites

• FM Francis — Ontario, California
• FM Adeline — Oakland
• FM Coliseum — Oakland

A fourth depot, FM Santa Fe in Rancho Dominguez, is contracted around 330+ Tesla Semis Forum has on reservation but is also framed as accessible to the broader drayage community. All four are designed with pull-through lanes so drivers can charge without dropping trailers—non-negotiable for Class 8 port work.

MC2 hardware, open MCS

Tesla’s second-generation MC2 Megacharger uses V4 Supercharger cabinet DNA with Megawatt Charging System (MCS) connectors. Each 1.2 MW cabinet feeds two posts (180–1,000 V DC, >96% efficiency). Forum cites roughly 60% of Semi range in about 30 minutes—conveniently a federal rest-break window. MCS (IEC 63379 / SAE J3271) is an open heavy-duty standard, so the iron is not proprietary even if Tesla’s commercial access rules still matter.

The partner economics

Under Tesla’s Semi Charging for Business program (May 2026), a Megacharger kit starts at about $188,000 (cabinet + two posts, ex-install/tax), and Tesla collects $0.08/kWh at third-party revenue sites—about 20% below Supercharger-for-Business rates. Forum owns land and fleet relationships; Tesla supplies/operates chargers and takes energy revenue. Tesla’s map lists dozens of planned Megacharger sites; partner depots are how it scales toward earlier targets around mid-to-late decade.

Why now: diesel and a repealed mandate

National diesel recently printed above $6/gal, with California near $7.76 (EIA week ending Sept 9). California’s Advanced Clean Fleets drayage mandate was repealed effective September 10, 2026—so Forum’s pitch is TCO math, not compliance theater. CEO Matt LeDucq has described double-digit to ~20–30% cost advantages versus diesel at current prices for typical drayage duty cycles.

Rocks take

This is infrastructure product news, not robotaxi vibes. Watch whether Tesla formally opens Forum MCS stalls to non-Tesla MCS trucks—and whether H1 2027 openings slip. Primary write-up: TechTimes.

FAQ

When do depots open? Coverage points to first half of 2027 (Santa Fe often Q1 2027).

Can other brands charge? Hardware is MCS-capable; commercial open access is Tesla’s call.