Wärtsilä Gas Solutions, part of the technology group Wärtsilä, has received an order to supply a biogas upgrading plant (PuregasCA) for Danish renewable energy solutions provider Bigadan AS. The facility will play a key role in increasing the efficiency and usability of biogas as a renewable energy source, with an upgrading capacity of 6,000 Nm³ per hour of raw biogas. The order with Wärtsilä was placed in Q3 2025.
The project represents a significant step in increasing energy production and biogas utilization in Denmark and will make an important contribution to the country’s green transformation. The plant will be located at Bigadan’s biogas facility in Horsens.
Wärtsilä Gas Solutions’ solution is based on amine scrubber technology, which enables efficient and effective biogas upgrading to meet Danish gas grid standards.
“We are committed to supporting and promoting the green transformation, and Wärtsilä’s biogas upgrading solution will strengthen our efforts. This is an exciting example of renewable energy technology development. Biogas has enormous potential as a sustainable energy source, as it aligns with global efforts to reduce carbon emissions and promote cleaner energy sources,” comment Casper Krog Hansen, Project Manager at Bigadan AS, and Christian A. Tidmarsh, Business Development Manager at Bigadan AS.
The Wärtsilä PuregasCA solution is expected to be fully implemented and operational in Q3 2026, delivering upgraded gas to the Danish national gas grid. Wärtsilä’s scope of work includes installation and commissioning of the plant.
“The integration of biomass and biogas, together with wind and solar energy, is an essential element in creating a comprehensive energy strategy, and the cooperation between Wärtsilä and Bigadan contributes significantly to its implementation. The innovative technology we are able to deliver is based on our extensive experience and deep internal knowledge, and our established reputation and track record were important factors in awarding this contract,” says Goran Gajski, Sales Manager, Wärtsilä Gas Solutions, Biogas.
About Wärtsilä Energy Wärtsilä Energy leads the transition towards a 100% renewable energy future. The company helps customers and the energy sector accelerate the decarbonization process through its market-leading technologies and expertise in energy systems. Wärtsilä’s solutions include flexible engine power plants, energy storage and optimization technologies, and services for the entire lifecycle of our installations. The company’s engines are future-proof and can be powered by sustainable fuels. The company’s portfolio includes 79 GW of power plant capacity, of which 18 GW is covered by service agreements, and over 125 energy storage systems in 180 countries worldwide. More information: https://www.wartsila.com/pol/energetyka
About Wärtsilä Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. The company emphasizes innovation in sustainable technologies and services to help our customers continuously improve their environmental and economic performance. A dedicated and passionate team of 17,800 professionals in over 280 locations across 79 countries is shaping the decarbonization transformation of our industries worldwide. In 2023, Wärtsilä’s net sales amounted to EUR 6 billion. Wärtsilä is listed on Nasdaq Helsinki. More information: https://www.wartsila.com/pol
