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23.06.2026
Lantakaasu’s biogas plant in Nurmo started operating in spring 2026. In the foreground is a gas-powered lorry used for transporting slurry.
At Suomen Lantakaasu’s biogas plants, agricultural side streams, such as livestock manure and field biomass, are processed into biofuel for heavy-duty transport. The same process produces biofertilisers prized by farmers. As production grows, it is increasingly integrated into the broader gas market and infrastructure development.
The agricultural sector produces many side streams that can be converted into biogas. At Suomen Lantakaasu’s biogas production plants, renewable fuels are produced from livestock manure.
“We are developing industrial-scale production of biogas for use as, for example, a renewable fuel for heavy-duty transport, replacing fossil diesel,” Suomen Lantakaasu’s CEO Leena Helminen explains.
The company’s aim is to build 5–7 biogas plants in Finland, located in areas with intensive livestock production.
The first plant was inaugurated in spring 2026 in Nurmo, Southern Ostrobothnia. Initially, it will be able to process 240,000 tonnes of manure and produce 100 GWh of liquified biogas annually. This equals to around ten million litres of diesel.
“We are already planning an investment in Nurmo that would double the current production capacity,” Helminen says.
Suomen Lantakaasu’s second biogas plant will start operations in Kiuruvesi, Upper Savo. It will be the largest liquefied biogas facility in Finland, capable of annually processing some 460,000 of manure and field biomass collected from nearby farms.
“The project also includes satellite plants to be built in Lapinlahti and Nurmes. These plants will produce compressed biogas to be transported to Kiuruvesi and will be completed in summer 2026,” Helminen says.
These are significant investments for the communities dependent on agriculture. The investment in Kiuruvesi is valued at roughly EUR 80 million and in Nurmo at around EUR 60 million.
The company is currently conducting a feasibility study concerning a biogas plant in the Kronoby and Pedersöre region in Ostrobothnia.
“The region has a high concentration of livestock farms, and local farmers have shown strong interest in collaboration,” says Helminen.
At the core of a biogas plant are the digesters in which manure from farms is broken down by microbes under anaerobic conditions. This results in biomethane, which is recovered and liquified.
“The remaining solid fraction is a nutrient-rich fertiliser, which farmers can spread on their fields. The digestate can be processed into fertiliser products with higher phosphorus or nitrogen content depending on the farms’ needs,” Helminen explains.
Biogas production integrates the energy system and nutrient cycling: it generates renewable energy while reducing reliance on fossil-based fertilisers and improving resource efficiency in agriculture.Manure-based biofertiliser enables farms to reduce their use of fertilisers made from fossil-based raw materials. Farmers are also interested in Suomen Lantakaasu’s fertilisers because their nitrogen content is in a more readily available form than in artificial fertilisers.
“Plants can utilise it more efficiently, which also reduces the risk of nutrient runoff.”
Biogas plants also produce biogenic carbon dioxide. There is currently no commercial market for it, but in the future it could be captured and utilised, for example, in the production of e-fuels or to replace fossil carbon dioxide in industrial processes.
Industrial-scale biogas production from manure is still relatively new in Finland. However, there is significant untapped potential.
According to a study by the Natural Resources Institute Finland from a few years ago, approximately 17.3 million tonnes of manure are produced on farms each year. Surplus grass and straw could also be used as feedstocks for fuel production.
The Finnish Biocycle and Biogas Association estimates that two terawatt-hours of biogas could be produced from agricultural and food industry waste and side streams by 2030.
“Suomen Lantakaasu aims to produce one terawatt-hour of liquefied biogas annually, equivalent to 100 million litres of diesel. Alongside emission reductions, this also strengthens Finland’s energy self-sufficiency and security of supply,” Helminen explains.
More extensive use of biogas requires both production and efficient transmission and distribution solutions. While there are currently no plans for Gasgrid’s transmission network to be built near the existing plants, infrastructure expansion and regional networks could enable more efficient biomethane transport across Finland and to export markets in the longer term.
“For example, Denmark already has a gas network in place. Network infrastructure could be one way to speed up the utilisation of agricultural bio-based materials for biogas production,” Helminen concludes.
The role of biogas in Finland’s energy system will increase as production, infrastructure and markets develop. The development of the biogas market depends largely on how production is integrated into national and regional gas infrastructure.
Gasgrid is developing Finland’s gas transmission network and related market solutions that enable the efficient use and trading of renewable gases, such as biomethane.
– Suomen Lantakaasu is a joint venture of biomethane company St1 Biokraft and food company Valio.
– The company produces liquified biogas from manure for heavy-duty transport as well as bio-fertilisers for farms.
– The aim is to build 5–7 biogas plants in Finland. The first two biogas plants are located in Nurmo and Kiuruvesi.
– The company aims to produce one terawatt-hour of liquefied biogas annually, equivalent to 100 million litres of fossil diesel.
Text: Matti Remes
Photos: Photo of Helminen by BrankPhoto, photo of the plant by Suomen Lantakaasu
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