Wärtsilä Gas Solutions, a division of the technology group Wärtsilä, has secured a contract to deliver a biogas upgrading system to Danish bioenergy provider Maabjerg Biogas, a subsidiary of Skovgaard Energy. The facility will have the capacity to upgrade 6,000 Normal Cubic Metres per Hour (Nm³/h) of raw biogas, significantly enhancing Denmark’s biogas production and utilisation. The order was booked in the first quarter of 2025.

The plant’s large-scale upgrading capacity is essential in optimising the efficiency of biogas as a renewable energy source. It will contribute to Denmark’s broader energy strategy, which aims to integrate multiple renewable sources, including wind, solar, and biomass, into a cohesive energy network.

The facility will utilise Wärtsilä’s Puregas CA80 upgrading technology, which achieves over 99.9 percent biomethane recovery by separating CO₂ from raw biogas through chemical adsorption. In addition to supplying the technology, Wärtsilä will provide long-term support through a five-year service agreement.

“Wärtsilä Gas Solutions has a proven and impressive track record in designing and implementing biogas upgrading systems. We consider their experience and expertise to be essential to this project, which highlights once again the latest advancements in renewable energy technology and our commitment to the green transition,” said Claus Lindholt Mikkelsen, CEO of Maabjerg Biogas.

Strengthening Denmark’s Renewable Energy Framework

The project represents a key step in advancing biogas as a sustainable energy solution, further reinforcing Denmark’s commitment to renewable energy integration.

“This project showcases the potential of biogas as a sustainable energy solution and the importance of long-term collaboration between stakeholders in defining the solutions needed for a renewable energy future. It also marks a pivotal advancement in the integration of renewable energy sources in Denmark, reinforcing their commitment to a sustainable energy framework,” said Goran Gajski, sales manager at Wärtsilä Gas Solutions, Biogas.

The plant, located within the Maabjerg Energy Centre in Maabjerg, West Jutland, Denmark, is expected to be fully operational in the first quarter of 2026. The upgraded biogas will meet Danish national gas grid standards and will be injected directly into the national gas grid, further supporting the country’s transition to a cleaner energy future.