Range Energy launches eTrailer, the electric trailer.
Range Energy, a California-based startup, has developed a system to equip truck trailers with their own battery and motor shaft. This setup can assist the tractor unit and reduce fuel consumption. According to the company, the eTrailer is more cost-effective than electric trucks outright in various scenarios, especially for European fleets.
Range Energy: Trailer Helps Reduce Consumption
The startup, founded by former Tesla employees, aims to address a component that is often overlooked in the electrification of heavy transportation: the trailer.
The system developed, called eTrailer, integrates a battery and an axle with electric motors into the trailer. These components enable it to actively contribute to the traction of the entire tractor-trailer unit, thereby reducing the fuel consumption required by the tractor. In tests presented by the company, diesel consumption reductions of up to 36% were achieved. This is a significant result that, of course, must still be verified on different routes, loads, and operating conditions.
For Range Energy, the main advantage is the ability to use this technology with existing tractors, eliminating the need to replace the entire vehicle.
Does the eTrailer outperform the Tesla Semi?
To understand the potential of the invented system, Range Energy conducted an economic study comparing three different configurations. These include a traditional diesel truck, a fully electric Tesla Semi, and a diesel engine paired with its own eTrailer.
The analysis focused on refrigerated transportation, considering a seven-year operational period. To make the simulation more detailed, 1,000 financial scenarios were developed. Factors such as diesel prices, electricity costs, charging infrastructure expenses, and fuel savings were varied in these scenarios.
According to the final results released by Range Energy, it was the diesel truck + eTrailer hybrid combination that proved the most cost-effective in 61% of the scenarios analyzed.
More range even for electric trucks
The company emphasizes that the eTrailer is not designed exclusively for diesel-powered trucks. It can actually be paired with a fully electric truck as well, helping with traction and reducing the energy the vehicle needs to draw from its battery.
Range Energy claims that the system could add at least 100 miles of range (about 160 km) under the operating conditions considered by the company.
In markets where the adoption of electric trucks is constrained by charging infrastructure, vehicle costs, and route logistics, this concept certainly deserves attention.
Range Energy: deliveries will begin in 2027
Range Energy plans to begin delivering the eTrailer in the fall of 2027. Larger-scale production and deliveries are expected to start in 2028.
The real test now will be proving that the savings estimated in simulations translate into actual benefits, taking into account maintenance, battery life, purchase costs, and infrastructure management.
The proposal remains interesting because it offers an alternative approach to decarbonizing heavy transportation: electrifying the trailer rather than replacing the truck outright. It may not be competitive with a pure electric truck on every route, but it could provide an intermediate solution for fleets that need to reduce consumption and emissions without replacing all their vehicles immediately.
READ ALSO: “Electric trucks, vans, and buses: Europe accelerates, but diesel holds strong” / VIDEO
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