Which battery powers the refrigeration?
Refrigeration may share the traction battery, use a separate battery or draw from another supply. The energy assessment needs that architecture and a clear boundary around every published consumption figure. Where measured vehicle consumption already includes cooling and other auxiliaries, adding them again would count the same load twice.
The KEEYAK electric refrigerated truck page lists battery, payload and temperature references, with driving range subject to the selected route and refrigeration duty. The offered battery configuration and usable-energy basis are the figures needed for route planning.
Battery energy in kWh, electrical power in kW and refrigeration cooling capacity describe different quantities. The electric versus diesel refrigeration guide helps identify the equipment and power architecture before those figures are used in a route assessment.
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| Part of the day | Record from the planned operation | Energy question |
|---|---|---|
| Loaded driving | Distance, load, speed, grades and conditions | What measured or justified traction allowance applies? |
| Deliveries and waiting | Door events and cooling duration | Which supply powers refrigeration while parked? |
| Other equipment | Required auxiliary loads | Are they already included in the consumption figure? |
| Reserve | Delay, diversion and operating policy | What energy remains unavailable to the normal plan? |
| Charging | Dwell time, charger and concurrent loads | What net energy can return before departure? |
Keep the refrigeration clock running during stops
A queue at a receiving depot can add cooling time without adding travel distance. Record the expected waiting and unloading periods, and assess a delay case with the supplier. Include ambient conditions, product loading temperature, door use and defrost where they affect the proposed refrigeration duty.
Thermo King's electric-refrigeration guidance discusses planning the use of its transport-refrigeration equipment. For a KEEYAK vehicle, the offered installation and actual operating records must support the energy assessment; the reference supplies no range result for that chassis-and-body combination.
The responsible cold-chain party needs to define product conditions and loading practice for chilled or frozen deliveries. A broad catalog temperature range cannot establish performance for every load, ambient condition and door-opening pattern.
A sample route energy budget for driving and cooling
Consider a 120 km delivery route with six hours of refrigeration. In this hypothetical case, one shared battery has 100 kWh of usable energy at departure. Driving alone uses 0.45 kWh/km, the refrigeration system draws an average of 3 kW, and other auxiliaries use 4 kWh. Set aside 15 kWh as a reserve.
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| Input or demand | Calculation | Energy |
|---|---|---|
| Driving, excluding refrigeration and other auxiliaries | 120 km × 0.45 kWh/km | 54 kWh |
| Refrigeration, including stationary delivery time | 6 h × 3 kW average electrical input | 18 kWh |
| Other auxiliaries | Assumed separately | 4 kWh |
| Total route demand | 54 + 18 + 4 | 76 kWh |
| Remaining above the chosen reserve | 100 − 76 − 15 | 9 kWh |
| Two extra hours of cooling at the same assumed input | 2 h × 3 kW | 6 kWh; remaining margin becomes 3 kWh |
The assumed electrical input is different from cooling capacity. Door openings, initial cargo temperature, ambient heat, defrost, battery condition and traffic can all change demand. If measured driving consumption already includes cooling, do not add that cooling demand again. For a separate refrigeration battery, calculate each energy supply on its own.
Check whether the depot can recover the energy in time
The depot supply and next departure set the available recovery window. Compare them with the selected vehicle's charging curve and installation requirements, allowing for connection time, concurrent cooling or auxiliary loads and any limits on operation during charging.
Can the battery recharge before the next departure?
In this hypothetical case, replacing 76 kWh at an average net charging power of 40 kW takes 1.9 hours. Net power is what reaches the battery after any cooling or other simultaneous loads, rather than the charger nameplate rating. The depot schedule also needs time for access, connection, charging taper, temperature limits and interruptions. Whether cooling can run during charging depends on the selected installation.
Agree a route trial with recorded assumptions
A route trial should record load, route, ambient conditions, temperature duty and door events alongside the energy data. Departure and return state of charge, cooling performance and exceptions can then be compared with the planning assumptions. A convenient light-load trip cannot stand as evidence for the full delivery duty.
The quotation also needs finished payload, axle loads, body layout, refrigeration service access and compatible charging at the destination. Responsibility for the chassis battery, cooling equipment and body should be assigned alongside the configuration and handover scope. A battery-size comparison leaves those support questions open.
Electric cold-chain vehicle questions
Can an electric refrigerated truck cool while parked?
Confirm the actual refrigeration power arrangement, controls and available energy. Include the expected parked period in the assessment and acceptance scope. The fact that propulsion is electric does not answer how the cooling system operates at a stop.
Does a larger battery always provide a suitable route range?
It can change the energy allowance, but payload, installed equipment, usable capacity and the driving and cooling duty still need checking. Ask for the selected configuration's assessment rather than extending a catalog range claim proportionally.
What should be measured on a route trial?
Record the load, distance, timing, ambient and product conditions, door events, energy boundaries and charging state. Include the cooling record and deviations from the planned duty. Those observations make a repeatable purchasing decision possible without implying a universal range result.
Sources and applicability
KEEYAK catalog fields considered in this guide: usable battery energy, traction consumption, refrigeration input, cooling capacity, reserve, net charging power. Confirm the selected chassis, equipment and signed specification. Catalog options are not results from a vehicle test.
Sources checked:
Transport-refrigeration manufacturer route-planning reference. Battery, temperature and route figures require confirmation for the offered installation.
Sources checked: