Vanair has developed a patented solar panel system for semi trucks, EPEQ Solar Assist, which can reduce idle times and waste diesel and engine hours. The system combines a modular battery pack with flexible solar panels mounted to the truck’s cab fairing to power HVAC, lift gates, and onboard electronics without firing up the main engine. The company claims these flexible panels can be applied to most cab fairings, trailer rooftops, and other curved surfaces without raised mounting platforms. They are available for most major OEM platforms and can be used to power onboard electronics, charge cordless power tools, and run some 120V equipment.