LOUISVILLE, Ky. — Last year at the Mid-America Trucking Show Kenworth introduced its idle-free cab heating and cooling system, Clean Power. This year, the company returned to Louisville to announce some enhancements to the system.

Clean Power, available on the T660 this summer, provides engine-off heating and cooling as well as 110-volt hotel load power using deep cycle batteries that charge a thermal storage cooler while the truck is on or connected to shore power. When the truck is turned off, the system circulates cool air through the cab or for heating, utilizes a small diesel-fired heater. The system can provide 10 hours of heating or cooling with ambient temperatures of up to 95 F, the company announced.

Now, Clean Power also comes with LED interior lighting and a sleeper insulation package that help improve the efficiency of the system by minimizing heat loss and reducing the power demand on the battery.

Kenworth Clean Power combined with high-output, low-current LED lighting and an enhanced sleeper insulation package for the Kenworth T660 72-inch AeroCab provide a significant advancement for energy efficiency in the trucking industry, announced Mike Dozier, Kenworth chief engineer. Customers with high idling time may receive as much as an 8% boost in fuel economy by not idling, thanks to Kenworth Clean Power. LED lighting has a very low power draw and uses an estimated 35% less energy than traditional lighting. The insulation package provides nearly a 40% improvement in thermal performance compared to standard insulation packages. Just like in a house, the better the insulation in the walls, the less the energy loss.