A white, incomplete circular shape with gaps on a light gray background, resembling a roughly drawn or abstract letter "C".
A white, incomplete circular shape with gaps on a light gray background, resembling a roughly drawn or abstract letter "C".
A large semi-truck drives on a wet highway at dusk, with its lights on and dark clouds overhead. The road is bordered by guardrails and trees, and the sky shows a hint of sunset.

Road freight is under pressure like never before.

Fuel costs are volatile, squeezing margins on every kilometer. Regulators and customers demand deep cuts in emissions, yet electric trucks remain expensive, scarce, and complex to integrate. Meanwhile, millions of trailers on the road today contribute nothing to efficiency. They are dead weight in a system that desperately needs smarter solutions.

Cova Smart Trailer

Trailers that 

power themselves.

Cova Smart Trailer transforms trailers from passive cargo carriers into powered, intelligent assets. With built-in propulsion, battery storage, and smart control, each trailer works seamlessly with existing tractors to save fuel and cut CO₂ from day one.

*concept render

Complete trailer electrification drop‑in solution

A digital rendering of a futuristic, transparent device with visible circuitry and glowing lines, featuring a white, rectangular component at the top with a curved arrow symbol. A digital rendering of a futuristic, transparent device with visible circuitry and glowing lines, featuring a white, rectangular component at the top with a curved arrow symbol. A digital rendering of a futuristic, rectangular device with transparent layers showing internal circuitry and glowing components, viewed from above, with a sleek, dark background.

In-wheel Propulsion

Compact, efficient, and powerful. Our in-wheel technology delivers instant power and torque and precise control directly at the wheels, enabling smarter, cleaner, and more adaptable trailer movement, without the need for complex drivetrains.

Close-up of cylindrical battery cells arranged in metal trays, each labeled with a large letter “C” on the side, suggesting a modern, clean energy storage or battery system. Close-up of cylindrical battery cells arranged in metal trays, each labeled with a large letter “C” on the side, suggesting a modern, clean energy storage or battery system. Close-up of cylindrical battery cells arranged in metal trays, each labeled with a large letter “C” on the side, suggesting a modern, clean energy storage or battery system.

High-capacity Battery

Built for endurance and efficiency. The high-capacity battery system ensures reliable power delivery and extended range, optimized for heavy-duty performance and fast integration into existing platforms.

Close-up view of a computer circuit board with various electronic components, ports, and a metallic central chip displaying a stylized "C" logo, set against a dark background. Close-up view of a computer circuit board with various electronic components, ports, and a metallic central chip displaying a stylized "C" logo, set against a dark background. Close-up view of a computer circuit board with various electronic components, ports, and a metallic central chip displaying a stylized "C" logo, set against a dark background.

Intelligent control

At the core of every Cova Power system is advanced control intelligence. Seamlessly managing propulsion, energy, and communication, it ensures the entire trailer system operates safely, efficiently, and intelligently.

Smarter trailers.
 Stronger fleets.

*

Up to

54%

less diesel 
consumption

*

Up to

30%

less total 
energy consumption

*

Improved traction and stability

in challenging conditions

* Based on research and simulations conducted by the University of Oulu

A diagram shows a timeline with "1 year" at the center. To the left, red triangles slope downward, and to the right, green triangles slope upward, illustrating negative and positive growth over time. A diagram with a vertical line labeled "1 year" at the center, red triangles expanding left to represent negative growth before 1 year, and green triangles expanding right to show positive growth after 1 year.

Savings that pay for themselves.

In Nordic duty cycles, each Smart Trailer can save up to €30,000 per year in fuel. Payback arrives within the first year of operation, while continuing to generate cost and emission reductions for the lifetime of the trailer.

Proven experience.
Real-world results.

2019

Ahola Group launches the world’s first e‑trailer project

2022

First generation of 
e‑trailers on public roads

2025

Cova Power and the Cova Smart Trailer 
are launched

Proven experience. Real-world results.

Cova Power builds on years of pioneering work. Ahola Group launched Europe’s first e-trailer project in 2019 and placed prototypes on public roads in 2022. In 2025, Ahola joined forces with electrification specialist Donut Lab to form Cova Power and revolutionize the industry with the Cova Smart Trailer.

Learn more

Ready to electrify your fleet?

Whether you’re an operator, a rental company, or an investor, Cova Smart Trailer delivers value from day one.

Contact Us

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