Biovoima implemented a large biomethane plant in the Bergen Economic Region in Voss, Norway, where construction and installation started in 2024 and the plant was officially commissioned in April 2026.The plant will process 15,000 tonnes of biowaste from the Bergen Economic Region and 40,000 tonnes of cattle slurry per year. The end product is biomethane, which is used to replace fossil fuels in industry. As a by-product, biofertiliser suitable for soil improvement is also produced.
The plant is invested in and operated by BIR AS, one of Norway's largest waste management companies, responsible for the waste management of nearly 400 000 inhabitants in seven municipalities in the Bergen metropolitan area. The modern biogas plant treats around 15 000 tonnes of municipal and household biowaste and 40 000 tonnes of livestock manure in the Bergen area every year. The end product of biogas processing is clean biomethane, which replaces fossil fuels in transport and industry. As a by-product, the process produces hygienised digestate suitable for use as organic fertiliser.
The biomethane produced at the plant is mainly used as a fuel for BIR's waste collecting trucks and as an environmentally friendly alternative to fossil natural gas and liquefied natural gas (LNG) for industry in the Bergen region. Vehicles are refuelled at the biogas plant site by Biovoima´s BIOpark gas filling station, in addition to which BIR transports gas in pressurised containers to remote gas filling stations to power up the buses in the Bergen area, for example. The vehicles literally run on energy produced from local biowaste and livestock manure.
The Voss biomethane plant in Norway demonstrates Biovoima's role as a technology integrator, delivering tailor-made, end-to-end biomethane solutions also for demanding Nordic conditions. Technology integration in this project also emphasises the seamless integration of waste reception, pre-treatment, digestion, gas upgrading and biomethane utilization technologies, ensuring the plant's operational reliability, high efficiency and long-term sustainability in the Arctic climate.
The client, BIR AS Project Manager Hogne Overaa welcomes the cooperation and the project with Biovoima.
“The Biovoima brought strong technical expertise, proven technology and a well-designed process plant with high-quality components to the Voss project. We have appreciated their delivery performance and found the Biovoima team to be professional and easy to work with throughout the project”, sums up Overaa.
The Voss biogas plant in Bergen region is, to our knowledge, the first biogas plant in the world to be BREEAM (Building Research Establishment Environmental Assessment Method) certified. Certified construction means, among other things, strict requirements for the use of materials and high levels of sorting and reuse. The BREEAM process is coordinated by the main civil engineering contractor responsible for the project LAB Entreprenør, with whom Biovoima worked closely throughout the project. Biovoima Project Manager Tero Kemppi is delighted, proud and relieved to have completed the biggest project to date for Biovoima.
”I would say that the most amazing part of the project was the excellent team spirit between all the key parties - especially the client BIR and the main contractor LAB, but also with the numerous subcontractors and partners. Challenges and differences of opinion cannot be avoided in long projects, but I always felt that everyone was pulling the rope into the same direction. It was this that laid the foundations for the success of the project - above all for BIR, the owner of the plant. The Finnish and Norwegian approaches also turned out to be very similar, which made communication smooth and easy,” says Kemppi.
More information on the project and solutions:
Jani Kangasaho
Sales Director, Suomen Biovoima Oy
050 468 7907
