Generally speaking, a refrigerated vehicle needs electricity to keep its cooling system operating. The vehicle’s engine, an additional diesel engine, or electric systems may provide this power. The required power ranges from 1.5 to 5 horsepower for smaller vans to more for larger units, depending on the size of the van and the cooling requirements. For greater energy efficiency and lower emissions, some contemporary refrigerated van Dubai use solar- or battery-assisted systems, which qualifies them for urban deliveries and ecologically sensitive operations.