Wabash National Corp. announced an exclusive agreement with eNow for its solar technology as the companies prepare to sell what they called the most eco-friendly refrigerated haul available on the market. Wabash will pair eNow’s roof-mounted solar modules and undercarriage-mounted lithium-ion batteries with its molded structural composites trailer, which will be cooled by an electric refrigeration unit from Carrier Transicold. Dubbed the eNow Rayfrigeration System, the solar-electric power system can cut operating costs by more than 50% compared with diesel reefers, according to the companies. ENow said the trailers should be in service before the end of this year.