Various US Locations — DHL has begun outfitting its pickup and delivery fleets with flexible photovoltaic units manufactured by Trailar. These systems generate clean electricity specifically for liftgates and other auxiliary equipment, reducing reliance on the engine alternator while maintaining consistent charge levels for auxiliary batteries. This move gives the carrier a distinct environmental advantage while addressing the growing electrical demands placed on modern commercial vehicles.
The push toward solar integration stems from the increasing number of electronic devices requiring power on the road. Kevin Otto, representing the North American Council for Freight Efficiency, has highlighted the potential of solar power as a strategic tool for managing these electric loads. As telematics devices and other electronics become standard, the strain on engine alternators grows. Otto suggests that fleets should consider auxiliary batteries paired with solar recharging to mitigate this burden. This approach provides a reliable trickle charge for refrigeration units and electric liftgates, ensuring they do not lose power during stops.
Arnold Kowal, director of after-sales support at Maxon Lift, notes that the liftgate industry is still in the early stages of truck electrification. Currently, only a small fraction of commercial vehicles rely on electric power for these components. However, Kowal believes this shift will fundamentally change industry practices. He points out that electric models can reduce the overall weight of the liftgate, which in turn increases vehicle payload capacity and improves weight distribution. This weight reduction also helps extend the range of battery-electric vehicles. Furthermore, the industry is moving toward full bolt-on applications in both 12- and 24-volt configurations, aiming to eliminate the need for welding during installation.
What This Means for Drivers
For a CDL-A driver or OTR truck driver, the adoption of solar-assisted systems means less strain on the truck’s electrical system during long hauls. Owner-operators may see extended battery life, which reduces the frequency of roadside service calls and costly replacements. Fleet managers need to assess specific operational variables before investing in this technology. Factors such as the number of lifts per day, load weights, and regional weather conditions must be evaluated to determine the correct panel size. A single 3-foot by 6-foot panel can significantly enhance operational efficiency without imposing a heavy financial burden. Drivers should also be aware that these systems can support telematics devices, keeping data connections active even when the engine is off.
Industry Reaction
While the industry is in its infancy regarding full electrification of liftgates, the reaction among logistics leaders is cautiously optimistic. The focus is shifting from pure cost savings to operational reliability and environmental compliance. By looking beyond initial pricing, carriers are evaluating panel ratings, physical dimensions, and the long-term lifespan of the batteries. This strategic approach ensures that the investment supports the truck’s overall performance. As more trucking companies hiring new talent look for ways to reduce operational costs and environmental impact, solar-powered auxiliary systems are becoming a key consideration in fleet planning.
Key Points
- DHL is using Trailar flexible photovoltaic units to power liftgates and reduce alternator dependency.
- Solar panels provide a trickle charge for refrigeration and telematics, preventing power loss during stops.
- Electric liftgates are lighter than hydraulic counterparts, increasing payload capacity and improving weight distribution.
- Future models will offer bolt-on designs in 12- and 24-volt configurations to simplify installation.
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