Revoy presents 3 innovations to electrify diesel trucks without touching the engine in 2026

A new technology in the United States is changing the way diesel trucks are electrified without modifying the original engine. This system reduces emissions and fuel consumption by up to 85% without the driver having to change their driving style.

The startup Revoy has created an electric trailer with its own battery and motor that hooks between the tractor and the semi-trailer, opening a new path for the energy transition in heavy transport.

How the Revoy system works and Why it interests Catalan transport companies

What is the electric truck dolly and How does it really help?

The electric truck dolly is a self-propelled trailer with an electric motor and a 575 kWh LFP chemistry battery, comparable to many large electric trucks. It hooks to the tractor’s standard hitch and provides electric power to the whole set while driving, relieving the diesel engine without touching any mechanical component.

This means that the truck keeps its original mechanics but consumes much less fuel and emits less CO2 per kilometer traveled, a key figure when normal consumption ranges from 29 to 39 liters per 100 km.

Why is it an interesting alternative for Catalan and Spanish fleets?

Transport in Catalonia and Spain faces the same global problem: replacing the diesel fleet with electric trucks is costly and slow. Revoy’s solution avoids this large initial investment because you only need to add a trailer with a battery and motor.

Moreover, the system can pull up to 36.3 tons and travel between 320 and 400 km in electric mode, allowing consumption and emissions to be reduced by up to 85%. For fleets operating on routes with suitable infrastructure, this technology can be an immediate saving and improvement without radical changes.

The business model and the technology that breaks molds

How does the subscription per kilometer work?

Instead of selling the electric trailer, Revoy offers a subscription model based on kilometers traveled. Thus, transport companies do not have to make a large initial investment and only pay when they use the technology.

This greatly facilitates adoption by fleets that until now saw the cost and maintenance of a complete electric truck as complicated.

How has the charging problem been solved?

Revoy has devised a rapid battery swap system: instead of waiting hours to charge, the trailer can be replaced by another fully charged one in less than five minutes. An idea reminiscent of the model of some electric car or motorcycle brands, adapted for heavy vehicles.

This system eliminates downtime, one of the main obstacles of electric industrial vehicles.

Safety and future: more than just electrifying

What electronic aids does the trailer incorporate?

Besides propulsion, the electric truck dolly trailer is equipped with systems to avoid the jackknife effect, anti-rollover assistance, blind spot detection, and help with reversing maneuvers.

This makes the vehicle not only consume less but also safer for the driver and the public road.

What plans does Revoy have to expand and improve?

With the recently raised 27 million dollars, and a total of 41 million invested, Revoy will start commercial operations in 2026 on a 320 km route near Portland, Oregon, with an initial fleet of four trailers.

They are also working on a second generation with smaller and more affordable batteries but with similar range, to make the technology more accessible and extend it.

The reality is that the Revoy system represents a paradigm shift for heavy transport mobility, especially for those who cannot afford a fully electric truck but want to reduce their environmental footprint.

The combination of technology, business model, and safety makes it a strong candidate to transform how we move on the road without striking the diesel engine that has resisted disappearance for so long.