With the help of an axle generator installed on the trailer, the system converts kinetic energy into electricity, which is stored in a battery pack and supplies the refrigeration unit with energy. While the refrigeration unit is running on battery power, an energy management system monitors the battery charge. If this falls below a certain level, the system triggers the generator to recharge the battery to ensure full cooling capacity at all times. Thanks to the battery pack, independent operation of the cooling system is guaranteed even when the trailer is stationary.

The eCool system can also be connected to the power grid when the trailer is parked. It takes less than four hours to fully charge the batteries. The fully electric and sustainable refrigerated trailer is driven through Switzerland by Futuricum's all-electric tractor unit. The entire vehicle is therefore completely CO2-free in operation!