Dall Energy sets up in Nantes to accelerate the deployment of innovative biomass in France

Dall Energy continues its expansion across France with the opening of a site in Nantes. The Danish company, specializing in high-capacity biomass solutions (4–21 MW), intends to structure its development in France from the western region.

Having arrived in July 2025, Mesut Yentur is leading this new strategic phase. “It’s a strong nationwide rollout. We have a solid order book,” emphasizes the France manager.

Nantes, a new French hub for Dall Energy

With around ten employees in France and about sixty in total, the company has moved in just a few years from startup status to that of an industrial scale-up. Nantes is thus becoming the central hub for commissioning and maintenance activities, close to ongoing projects in western France.

Biomass: from garden waste to district heating

Dall Energy focuses on biomass plants ranging from 4 to 21 MW, intended for metropolitan areas and industries. Its technology is based on a gasification process that allows the use of a wide variety of fuels, such as green waste.

Dall Energy’s patented gasification technology offers a low-emission and high-efficiency alternative to traditional biomass combustion. This solution is particularly suited to district heating networks, industrial applications, and urban energy infrastructure, helping clients achieve their sustainability goals while reducing operating costs.

“We can build exemplary plants that meet all ADEME eligibility criteria by using local hedgerow or landscaping wood chips,” explains Mesut Yentur, director of the Nantes entity. A major advantage in a context of tension in the energy wood market, with costs that can be reduced by up to 30%. Another benefit is lower emissions without the need for additional filters. “Naturally, our solutions release far fewer by-products in the flue gases thanks to condensers, while remaining below European and French standards,” he adds.

A booming market in France

Dall Energy installed its first wood-fired boiler in Rouen in 2020, enabling the city to shift the energy mix of its network from 100% fossil gas to more than 80% renewable energy. Since then, the company has multiplied its projects: Amiens, Caen, Salon-de-Provence, Tours, and Le Mans. It is now aiming for rapid scaling across the country.

“Dall Energy is experiencing strong growth both in terms of projects and the resources behind them,” says the manager. This momentum is notably driven by the growing needs of district heating networks and public funding, particularly from ADEME.

The main clients are major energy operators such as Dalkia, Engie, Coriance, or Idex, which operate long-term heating concessions.

Recruitment and team structuring

The Nantes site, located in the Now coworking offices on Île de Nantes, is accompanied by a recruitment plan. Dall Energy plans to build a team dedicated to service and maintenance of its plants.

“My current need is to strengthen the teams to develop this activity,” explains Mesut Yentur, who has more than 25 years of experience in leadership roles in the energy sector, including at Everllence in Saint-Nazaire. In the short term, at least three positions are expected to be created, primarily for specialized engineers, whose mission will be to monitor installations, optimize their performance, and structure the service offering.

The support provided by Nantes Saint-Nazaire Développement is highly appreciated, particularly in connecting with key decarbonization stakeholders in western France.

A strategic foothold in western France

Although Nantes is not yet hosting a project at this stage, its geographical position is a major asset. Ongoing or planned plants are concentrated within a nearby radius, notably in Tours, Le Mans, and Caen. This choice of location reflects Dall Energy’s intention to establish a lasting presence in the French energy landscape, from Nantes.

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