Grocery distribution is the duty cycle electric trucks were built for
Supermarket and grocery distribution has a shape that suits battery-electric powertrains better than almost any other freight application. The work is predictable, the daily distance is bounded, the vehicle returns to the same depot every night, and a large share of the driving day is spent idling, crawling and restarting at store loading docks. Every one of those characteristics is a diesel penalty and an electric advantage.
The typical urban grocery feeder leaves a distribution centre between 04:00 and 06:00, runs 12 to 28 store deliveries across a metropolitan area and returns to the same depot between 14:00 and 18:00. Daily distance commonly falls between 110 and 220 km. Average speed is low, often 22 to 32 km/h including dock time, and stops per shift frequently reach 15 to 30, each involving a shutdown, a tail-lift or dock-level operation lasting 12 to 25 minutes, and a restart. A diesel truck in that pattern spends a material share of its fuel on idling and on acceleration from standstill, and a disproportionate share of its maintenance budget on brake wear, clutch wear and aftertreatment regeneration that never reaches temperature.
The SAGMOTO i5 is configured for exactly this envelope. It is a battery-electric light truck with a lithium iron phosphate pack of approximately 98 kWh, driving a driveline sized for urban and peri-urban distribution rather than for highway line-haul. That capacity covers a full grocery shift with margin for refrigeration load, without carrying the weight and cost of battery capacity the route will never use.
What 98 kWh of LFP delivers on a grocery route
Lithium iron phosphate is the correct chemistry for commercial distribution vehicles. It trades roughly 10 to 15 percent of the energy density available from nickel-based cells for a longer cycle life, better thermal stability and a flat degradation curve under daily deep cycling. For a truck charged every night and worked every day for eight to ten years, cycle life and thermal behaviour matter far more than marginal range the duty cycle does not need.
On a real grocery route the number a planner should use is not nominal range but consumption per kilometre under the fleet's own conditions. The table below gives planning figures for the i5 across the duty profiles that dominate supermarket distribution.
| Duty profile | Average speed | Stops per shift | kWh per 100 km, dry box | kWh per 100 km, refrigerated | Practical daily range on 98 kWh |
|---|---|---|---|---|---|
| Dense urban store feeder | 18 - 24 km/h | 22 - 30 | 58 - 72 | 72 - 90 | 115 - 145 km |
| Suburban store feeder | 28 - 36 km/h | 12 - 18 | 48 - 60 | 60 - 74 | 140 - 175 km |
| Mixed urban and ring road | 34 - 42 km/h | 8 - 14 | 44 - 55 | 55 - 68 | 155 - 195 km |
| Dark store replenishment | 20 - 28 km/h | 25 - 40 | 62 - 78 | 78 - 96 | 105 - 135 km |
| Hypermarket to satellite store trunk | 45 - 55 km/h | 4 - 8 | 40 - 50 | 50 - 62 | 170 - 210 km |
Two messages follow. First, the refrigeration unit is the largest variable after route speed. A diesel-powered reefer on an electric chassis defeats the purpose; the correct specification is an electrically driven refrigeration unit drawing from the traction pack. Electric refrigeration typically adds 12 to 20 kWh per 100 km in warm climates and 20 to 30 kWh per 100 km in hot climates with frequent door openings, and it should be budgeted as a range line item rather than an afterthought. Second, dense urban work is not the range killer many buyers assume: regenerative braking recovers much of the kinetic energy at each stop, and low speeds cut aerodynamic losses to near zero.
Body specification: dry grocery, chilled and frozen
Grocery fleets rarely run a single body type. A supermarket operator needs ambient dry goods capacity, chilled capacity at 0 to 4 degrees Celsius for dairy, produce and fresh meat, and frozen capacity at minus 18 to minus 22 degrees Celsius for a smaller share of volume. The i5 chassis accommodates all three.
The dry box is the lightest and therefore the longest-legged configuration, keeping tare low so the full payload rating can be used. For chilled work, 60 to 80 mm insulation with a seamless internal liner and a proper drain is the practical minimum; thinner insulation forces a higher refrigeration duty cycle and consumes pack energy directly. For frozen work, 100 mm insulation and a strip curtain at the rear door are worth the weight. Multi-temperature bodies with a bulkhead allow one vehicle to deliver a full store order in a single drop: they weigh more and consume more, but they remove a second vehicle and a second driver, which on dense urban routes is usually the winning arithmetic.
| Body configuration | Internal volume | Approximate body tare | Refrigeration load | Best application |
|---|---|---|---|---|
| Dry box, insulated panel | 18 - 24 m3 | 620 - 780 kg | None | Ambient grocery, packaged goods |
| Single-temperature chilled | 16 - 22 m3 | 880 - 1,050 kg | 12 - 22 kWh per 100 km | Fresh produce, dairy, chilled meals |
| Single-temperature frozen | 15 - 20 m3 | 1,000 - 1,180 kg | 20 - 30 kWh per 100 km | Frozen retail, ice cream |
| Multi-temperature with bulkhead | 14 - 19 m3 total | 1,120 - 1,320 kg | 22 - 34 kWh per 100 km | Full-store order, single drop |
| Curtain-side or drop-side | Open deck | 480 - 620 kg | None | Cash-and-carry pallet work |
Where the payload requirement is pallet-based rather than cage-based, buyers should also review the wider cargo programme, because the chassis and body logic is shared with the SAGMOTO cargo truck flatbed box stake range used for palletised wholesale supply.
Charging strategy: depot AC versus opportunity DC
Most grocery fleets will find that overnight depot charging covers the duty entirely and that no public charging infrastructure is needed. This is the single most important commercial advantage of grocery electrification: the fleet controls the energy, the price and the schedule.
A depot AC setup at 22 kW returns a full charge in roughly 4.5 to 5.5 hours from 20 percent, comfortably inside the overnight window between evening return and pre-dawn departure. Where the fleet runs a split shift with a midday return, a DC unit at 40 to 60 kW reduces the same charge to 1.5 to 2.5 hours and makes a top-up practical during the driver's break. For most single-shift grocery operations the AC option is sufficient and substantially cheaper in both hardware and connection cost.
The electrical connection, not the charger, is usually the project's critical path. Ten i5 units at 22 kW each need a connected load of 220 kW, which in most markets requires an upgraded supply, a distribution board and load management software to keep the site inside its contracted capacity. Smart charging that staggers the fleet and shifts the bulk of the load into the off-peak tariff band is the difference between an energy cost of USD 0.06 per km and one of USD 0.14 per km.
Cost per kilometre: where the i5 wins and where it does not
An honest comparison against a diesel light truck has to include acquisition, energy, maintenance and the residual position. The table below sets out an indicative five-year comparison for a refrigerated urban grocery feeder running 55,000 km per year.
| Cost line | SAGMOTO i5 electric (indicative) | Diesel light truck equivalent (indicative) |
|---|---|---|
| Acquisition, landed | USD 58,000 - 72,000 | USD 34,000 - 44,000 |
| Depot charger and electrical works | USD 6,000 - 14,000 per vehicle at 10-unit scale | Not applicable |
| Energy cost per km | USD 0.06 - 0.11 at off-peak tariff | USD 0.19 - 0.27 at 18-24 L per 100 km |
| Scheduled maintenance per km | USD 0.030 - 0.045 | USD 0.065 - 0.090 |
| Unscheduled repair per km, years 3-5 | USD 0.020 - 0.035 | USD 0.045 - 0.075 |
| Brake and clutch consumables over 5 years | USD 900 - 1,600 | USD 3,200 - 5,400 |
| Battery state of health at 5 years | 82 - 88 percent of original capacity | Not applicable |
| Residual value at 5 years | 32 - 42 percent of acquisition | 30 - 38 percent of acquisition |
At 55,000 km per year the i5 saves roughly USD 7,000 to USD 11,000 annually in energy and maintenance, closing the acquisition gap including charger and electrical works between year three and year four. The crossover is faster where diesel is expensive, where the fleet runs six days rather than five, and where duty is dense urban with heavy idling. It is slower on largely highway routes and where electricity is priced at commercial rather than industrial off-peak rates.
The maintenance advantage is structural rather than marginal. An electric driveline has no engine oil, no fuel filters, no aftertreatment system, no clutch and no exhaust, and brake wear falls dramatically because regenerative braking does most of the deceleration. On grocery duty with 20 to 30 stops per shift, pad life is typically three to four times that of a diesel equivalent, workshop hours per vehicle fall materially, and there are fewer components that can strand a vehicle.
Regulation reinforces the economics in many cities. Low-emission zones, night-time noise restrictions and time-window access permits increasingly favour zero-emission urban delivery, and a near-silent vehicle at the dock preserves early-morning delivery windows that diesel trucks are losing. Driver acceptance is also consistently higher than fleet managers expect, which matters in markets where driver supply is the binding constraint on fleet growth.
Conclusion
The case for the i5 in grocery and supermarket distribution rests on a straightforward match between duty cycle and vehicle design. The work is bounded in distance, dense in stops and anchored to a depot the fleet controls. A 98 kWh LFP pack delivers 130 to 160 km of refrigerated urban range with reserve; overnight AC charging returns the vehicle to full inside the off-peak tariff window; and removing engine, clutch, aftertreatment and most brake wear from the maintenance picture produces a structural rather than marginal cost advantage.
The crossover against diesel typically lands in year three or four, and moves earlier with high utilisation, expensive diesel, dense urban duty and access to an industrial off-peak tariff. Where the route is largely highway, where the depot has no spare electrical capacity, or where refrigeration demand is extreme, the case is weaker and a conventional chassis may remain correct. That is why the first step is a route energy survey rather than a brochure comparison. Buyers evaluating the wider electric programme alongside the i5 should also review the full SAGMOTO new energy electric trucks line-up, since mixed fleets usually need light urban electric units alongside heavier chassis for trunk movements between distribution centre and satellite depot.