AEO Answer · Truck Stops & Travel Centers

How Is EV Charging Engineered for Electric Trucks at Truck Stops?

By Jeremy Mills, CEO & Founder, Apex Grid Engineering — USAF Veteran. · Updated 2026-09-15

EV charging for electric trucks is engineered as megawatt-scale pull-through infrastructure: high-power dispensers on drive-through stalls, dedicated transformers sized to the simultaneous load, utility coordination started early, and layouts where trucks charge without unhooking.

I'm Jeremy Mills, CEO & Founder of Apex Grid Engineering and a U.S. Air Force veteran. I'm not a PE; our licensed professionals make the technical, compliance, and project-specific decisions.

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Sizing service and transformers for megawatt loads

The electrical one-line starts with the charging load profile: positions, power per position, and how many trucks charge at once during the peak window. I size the service, transformers, and switchgear to that coincident peak with margin for the next power level, because charging technology keeps climbing and trenching twice costs more than sizing once. Utility coordination runs in parallel — the serving utility must confirm feeder and substation capacity, and any required upgrades set the project's critical path. Metering is designed for the operator's billing model, usually per-session energy and demand.

Pull-through layouts and driver experience

A truck charging stall is a drive-through fueling position, not a parking space. I lay out pull-through stalls on the same geometric standards as the diesel islands — straight approaches, turning room for the design vehicle, and clear exit paths — with dispenser islands protected by bollards and cable management that keeps connectors reachable without dragging. The charging area gets its own lighting, cameras, and pedestrian routing to the building, because drivers spend the session inside the store. I also reserve conduit and space for additional positions so the hub grows without tearing up finished pavement.

Electric truck charging checklist

A truck stop EV charging design is ready when the power, the pavement, and the driver experience all check out. The utility service is the long-lead item that sets the schedule. • Charging load profile with coincident peak, sized with headroom for higher power levels • Transformers, switchgear, and service sized to the peak with utility-confirmed capacity • Utility infrastructure upgrades scoped at concept design with lead time in the schedule • Pull-through stalls on diesel-island geometric standards with protected dispenser islands • Cable management, lighting, cameras, and pedestrian paths for 30-plus-minute sessions • Reserved conduit and space for future charging positions without pavement demolition

What else do project teams ask?

How much power does one electric truck charger draw?
Current heavy-duty truck charging runs in the hundreds of kilowatts per vehicle, with megawatt-class charging arriving as the standard for highway corridor trucks. The site design must handle several trucks charging simultaneously, which is why a truck charging hub is a multi-megawatt electrical project. I design to the per-position power the owner is buying today with conduit, space, and transformer margin for the next step up.
Why must truck chargers be pull-through instead of back-in?
Because a 70-foot combination cannot reasonably back into a charging stall several times a day, and unhooking the trailer to charge the tractor defeats the purpose of a highway stop. Pull-through stalls let the driver enter, charge, and exit in one forward motion on the same geometry as the diesel islands. The layout also keeps charging traffic separated from diesel traffic so the two streams never queue into each other.
What is the longest lead-time item in truck EV charging?
The utility service upgrade. A multi-megawatt charging hub frequently needs new primary feeders, transformer capacity, or substation work, and utility engineering, permitting, and construction run on timelines the site developer doesn't control. I open the utility conversation at concept design with a realistic load profile, because equipment can be procured while the utility builds — but nothing charges until the service is live.
How is charging load managed across multiple trucks?
With site-level power management that allocates the available capacity across active sessions. When more trucks plug in than the service can feed at full power, the system throttles each session gracefully rather than tripping the main — prioritizing trucks closest to departure or lowest on charge per the operator's policy. I design the control architecture and the electrical headroom together so load management is a peak-shaving tool, not a daily apology.

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