eNow’s Rayfrigeration zero-emissions commercial-use transport refrigeration unit is designed to support medium-temperature refrigeration applications. The TRU system employs two forms of energy storage: eutectic medium cold plates and a high-capacity auxiliary battery system. The cold plates and auxiliary batteries initially are charged from utility power delivered to the vehicle when plugged in overnight. When the truck is operated on a delivery route, power is provided by the company’s solar photovoltaic panels mounted on the truck’s roof. The 1,800-watt solar system eliminates fuel and maintenance costs, increases battery life and reduces battery replacement costs due to consistent charge maintenance.