Best Buy’s Electric Yard-Truck Pilot Needs a Move-Level Energy Baseline
Best Buy is testing battery-electric yard switchers at two California distribution centers. That is a sensible place to electrify: yard tractors repeat short routes, return to a fixed base and spend predictable periods waiting between assignments. But the pilot will not answer the most important question unless the retailer measures work and energy at the same level of detail.
The correct unit is not the vehicle, shift or monthly utility bill. It is the completed trailer move.
Supply Chain Dive reports that the two-site pilot is intended to evaluate performance, operational feasibility and total cost of ownership. The switchers produce zero tailpipe emissions and could reduce diesel consumption, maintenance expense and California warehouse-emissions compliance costs. Best Buy has not disclosed the participating facilities, pilot start date or rollout plan.
That limited public detail makes the measurement design more important. A pilot can look successful because an electric tractor completed its assignments, yet still conceal extra waiting, charger conflicts or diesel backup moves. A move-level baseline exposes those tradeoffs before they multiply across a network.
Establish the diesel baseline first
Best Buy should record at least four representative weeks of diesel yard activity before comparing technologies. Seasonal peaks should be measured separately because an average week can hide the operating conditions that determine fleet size.
For every move, the baseline should capture:
- dispatch time, acceptance time and completion time;
- origin and destination yard zones;
- loaded or empty trailer status;
- engine-on time, productive travel time and idle time;
- estimated fuel consumed;
- trailer dwell before a dock assignment; and
- exceptions such as blocked lanes, missing trailers or unavailable doors.
This produces a credible diesel cost per completed move. Fuel and maintenance belong in that calculation, but so do labor minutes and delay costs. If a tractor idles while a door becomes available, that is simultaneously an energy problem, a yard-flow problem and a warehouse scheduling problem.
The electric pilot should then use the same event definitions, with battery state of charge at dispatch and completion, kilowatt-hours delivered by the charger, charging duration and charger queue time added. Comparing unlike definitions would turn the exercise into a vehicle demonstration rather than an operational trial.
Connect charging to dispatch sequencing
Electric yard tractors are well suited to fixed facilities, but charging still changes the dispatcher's constraint set. FreightWaves' coverage of a current electric terminal tractor illustrates the available operating envelope: the Kalmar OT2 EV offers three battery capacities and charging at up to 150 kilowatts, with fast charging in under an hour. The same report says the equipment is designed to operate from minus 22 F to 122 F. Those specifications show what modern equipment can do; actual site performance will still depend on duty cycle, weather, charger power and queueing.
A yard management system should therefore treat state of charge as an assignment attribute, not a maintenance note. Each pending move can be matched with a tractor that has enough usable energy to complete the task plus an operating reserve. The dispatch engine should also see charger availability, planned breaks and inbound trailer appointments.
The sequence can be simple:
- Protect urgent dock moves tied to outbound cutoff times.
- Assign lower-energy moves to tractors approaching their charging threshold.
- Send vehicles to chargers during forecast lulls or operator breaks.
- Preserve one charged unit, or a defined diesel fallback, for disruptions.
This prevents a common pilot distortion: operators charging whenever convenient while dock congestion quietly grows. Charging windows should be scheduled against the same demand forecast used for labor and door planning.
Measure energy where the work happens
The headline metric should be kilowatt-hours per completed move, segmented by loaded status, route, shift and temperature. A single fleet average is too blunt. A long loaded pull across a crowded site is not comparable to repositioning an empty trailer between adjacent rows.
Energy data should also reconcile across three points: charger output, vehicle telemetry and the utility meter. The differences reveal charging losses and non-vehicle electricity consumption. Pairing those records with move events allows managers to distinguish an inefficient vehicle from an inefficient operating pattern.
Best Buy already has a useful California energy asset. Supply Chain Dive says the retailer's Dinuba distribution center has a solar field capable of generating nearly 6 million kilowatt-hours annually. If that site participates now or later, charging schedules could be aligned with solar production. The business case should nevertheless price electricity by time of use and include demand charges; annual renewable generation does not guarantee low-cost power during every operating peak.
Use expansion gates, not a favorable anecdote
Before adding sites, the pilot should pass four explicit gates.
Economics: fully loaded cost per move must meet a target against diesel after including vehicles, chargers, electrical upgrades, maintenance, energy and incentives. Savings should persist under realistic utilization rather than optimistic assumptions.
Availability: electric units must achieve the required dispatch-ready uptime, while charger faults and queue delays remain below defined limits. The metric is productive availability during demand peaks, not merely calendar uptime.
Operations: trailer dwell, dock congestion and missed departure cutoffs cannot worsen. Peak-shift resilience should be tested with charger outages, late inbound surges and unusually high move volume.
Emissions: avoided diesel and associated emissions should be calculated from displaced fuel, then reported alongside electricity consumption. Best Buy should separate zero tailpipe emissions from broader electricity-related emissions so the claim remains auditable.
The result is a decision framework that can travel. A site with compact geometry, predictable breaks and adequate electrical capacity may clear every gate. A larger, congested yard may require another charger, a different battery configuration or redesigned dispatch rules. That variation is not pilot failure; it is precisely what the pilot should discover.
Electric yard trucks can reduce local emissions and operating expense, but hardware alone does not create a scalable fleet. Best Buy needs a digital record connecting every trailer move to time, energy, charger capacity and service outcome. With that baseline, expansion becomes an operating decision supported by evidence—not a sustainability story searching for a denominator.
Ready to connect yard moves, trailer dwell and dispatch decisions in one operational view? Request a CXTMS demo to see how measurable workflows support smarter fleet execution.
