Gas1 Hankkeet
Gas1 turns biogas plans into reality
Botnia Gas Oy | Kaustinen
A large-scale biogas plant is being developed in Kaustinen.
The biogas plant will process the same material streams that were previously used for fur animal feed production. In addition, local agricultural partnerships will contribute manure and field biomass to be processed at the plant. Local farms have shown strong interest in cooperating with the plant.
The biogas plant aims to achieve annual energy production of more than 100 GWh.
The residual materials from production are excellent fertilisers for farms. In this way, the project will make a significant contribution to the region’s green transition.
The project will have a significant direct and indirect employment impact. In addition, the project is located in an area undergoing structural change.
An investment grant of approximately €23.5 million was applied for the project in August 2026 under the Ministry of Economic Affairs and Employment’s Large Demonstration Projects funding programme.
Gas1 will build a biogas plant in Rantsila, Northern Ostrobothnia, using sustainably produced grass as its primary feedstock
A project company, Rantsilan Metaani Oy, has been established for the project. The project company has agreed on the possibility of initiating the permitting process on an approximately eight-hectare area owned by the municipality in Tuohimaa.
The final size of the project will be determined during a more detailed assessment, but according to a preliminary estimate, the area has the potential for annual production of more than 100 GWh. In upgraded form, this corresponds to more than ten million litres of diesel. The production is intended to be used as liquefied biomethane for heavy-duty transport.
The total estimated cost of the project is approximately €50 million, and construction is scheduled to begin at the latest once the EIA process has been completed.
– During 2026, the aim is to initiate the permitting processes and assess the eligibility for investment support, says Mika Kallio, CEO of Gas1 Oy.
The project has been prepared in close cooperation with the Municipality of Siikalatva. Municipal Manager Pekka Iivariviews the project positively.
– Cattle farming has declined significantly in Siikalatva, and particularly in the Rantsila area, in recent years. The region’s fields are ideally suited to grass production, so we believe that the biogas plant will strengthen the operating conditions for agriculture throughout the area, says Municipal Manager Iivari.
According to the assessment, the area has at least 300,000 tonnes of grass, most of which is intended to be used as animal feed outside the region. Of this amount, at least 100,000 tonnes consists of fractions best suited for biogas production. The biogas plant will also create the conditions for other business activities in the area.
A significant amount of carbon dioxide is generated in the upgrading of biomethane. Carbonaide Oy, a VTT spin-off company, has actively expressed its interest in utilising it. The company aims to use the carbon dioxide to reduce the need for cement in the manufacture of its customers’ concrete products and elements. At the same time, this would enable the use of alternative binders produced in the region.
– We have many potential customers in the Oulu region that could utilise biogenic carbon dioxide on a significant scale. Most likely, we would transport the liquefied carbon dioxide to an existing customer facility. However, from both an economic and ecological perspective, the optimal solution would be for the production of concrete products to take place within the same ecosystem where the carbon dioxide is generated. I see a business opportunity for concrete product manufacturers in Rantsila, envisions Jonne Hirvonen, Chief Operating Officer of Carbonaide Oy.
Lännen Biokaasu Oy, Kurikka
Gas1’s and Kurikan Energia’s joint venture Lännen Biokaasu has received an €11.6 million investment grant from the Ministry of Economic Affairs and Employment. The project company has been brought to investment readiness, and the final investment decision is still expected during the latter part of 2026.
The project includes agreements with several farm-scale biogas plants. Their production will be supplemented by a dedicated biogas plant to be built in Ikari, Kurikka. This will help balance variations in production and improve the overall security of supply. All biogas plants will be connected to a common raw gas collection network, which will transport the gas to the liquefaction plant.
One of the significant competitive advantages of the Kurikka ecosystem is the location of the liquefaction plant. A site has been reserved next to Jalastuuli, one of Finland’s busiest service stations. The location enables transport operators using liquefied gas to refuel in a familiar service-station environment and provides an opportunity to sell liquefied gas directly at the production site. The location of the liquefaction plant also enables the utilisation of waste heat generated in the process in the district heating network of central Jalasjärvi.
The project will have a significant positive impact on the regional economy and will substantially reduce carbon dioxide emissions caused by the use of fossil fuels.
Rannikon Biokaasu, Kristiinankaupunki
A biogas plant is planned for Härkneva in Kristiinankaupunki, with our partner Rannikon Biokaasu Oy. The company is backed by companies operating in the waste and environmental sectors, a potato processing company, a transport company and one of Finland’s largest cattle farms.
Our plan is to build a biogas plant that meets the needs of all stakeholders.
The production volume will be approximately 34,000 tonnes, making it possible to implement the project without an EIA procedure.
The project is part of the Smart Modular Plants as a Decentralised Biogas Production Solution initiative.
Ylä-Savon Biokaasu
Gas1’s core team delivered a biogas terminal to Vieremän Lämpö ja Vesi in autumn 2023. The next step in developing biogas operations was an expansion of the biogas collection pipeline network carried out by the Municipality of Vieremä in 2026.
The Municipality of Vieremä has applied to the Regional Council of North Savo for investment support for the construction of the biogas terminal. A biogas plant owned by Ylä-Savon Biokaasu Oy will be built next to the terminal. The plant will process material streams from several farms in Vieremä.
Gas1 will become a shareholder in Ylä-Savon Biokaasu, be responsible for the project delivery of the plant and manage the plant’s assets as part of lifecycle services.
The project’s financing base is nearly complete. The environmental permit is expected to become legally valid shortly. The aim is to begin construction of the plant during 2026.
Case Orimattila
Janne Ekholm is one of the founders of Gas1 Oy. Ekholm began his career in biogas by managing the Horsepower from Horse Manure project as a project manager in 2018–2019.
At that time, the conditions were not yet right for a biogas plant based on horse manure, but many of the same industrial side streams are still not being utilised to their full value. The project can therefore now be brought to completion.
In addition to horse manure, other manure fractions and field biomass will be used as feedstocks. The production volume will be approximately 15 GWh.
Construction of the project will begin at the earliest in 2027.
The plant is part of the Smart Modular Plants as a Decentralised Biogas Production Solution project.
Satakaasu, Kouvola
The project company owned by Gas1 Oy is set to secure a site in Kouvola in November 2026, close to industrial operations.
Together with our partners, we have been carrying out preparatory work among agricultural entrepreneurs in the area for several years.
Our aim is to sign dozens of letters of intent by March 2027, at which point the project’s feasibility study can be presented to financiers.
Satakaasu Oy is part of the Smart Modular Plants as a Decentralised Biogas Production Solution project.