“Rayfrigeration” Uses the Sun to Cool Foods

Solar energy powers the refrigeration unit during the truck's daily delivery cycle. (eNow)

Solar energy powers the refrigeration unit during the truck’s daily delivery cycle. (eNow)


The first solar-powered refrigerated truck is on the road in California, delivering fresh foods from distribution centers to local stores and 98% reduction in harmful emissions. The $1.2 million project is a partnership among the U.S. Environmental Protection, San Joaquin Valley (CA) Air District and four companies. Challenge Dairy Products of California invested in and operates the truck. Emerson, with electronics and controls headquarters in Kennesaw, designed and built the motor, compressor and controls for the truck refrigeration system. eNow, Inc. manufactured the solar panels; and Great Dane Truck bodies, constructed the truck and incorporated the new clean-energy refrigeration system into it.

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