ICL, Mitsubishi Chemical and Nippon Fruehauf have co-developed an idling/stopped air conditioning system for trucks that uses photovoltaic cells and batteries.

The air conditioning system uses a Nippon Fruehauf mount to install Mitsubishi Chemical’s PV cell modules on the container of the truck. It stores electricity in an ICL storage battery while the truck is moving and uses it when the engine is not in operation, 

The system can save about 1.8 litres of diesel per hour when the truck is not moving. In a normal 10 tonne truck, the air conditioning system can save about 1,500 litres of diesel per year.