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Biogas plant contact details


Gasum owns a nationwide network of biogas plants. Our local biogas plants provide services related to biodegradable waste processing, biogas production and production and distribution of recycled fertilizers.

Gasum’s objective is to actively develop the Nordic gas ecosystem.

In addition to Finland, Gasum has expanded its biogas production in Sweden and is the biggest producer of biogas in the Nordic countries.


Biogas from biodegradable waste ending up in general waste - Oulun Energia and Gasum gearing up for new type of investment

Oulun Energia and the energy company Gasum are working together on a local investment in Finland that would allow increased biogas production and processing into a road fuel biogas. The planned biogas plant would be located in conjunction with Oulun Energia’s Laanila eco power plant and, when completed, would be the first biogas plant to use the biodegradable material mixed in with municipal general waste as a feedstock.

Laanila eco power plant converts municipal and industrial waste from across Northern Finland into process steam, electricity and heat. In the joint venture, Oulun Energia is preparing to invest in a waste processing facility that would sort around 45,000 tonnes of biodegradable material from 130,000 tonnes of household general waste each year. Gasum would be responsible for processing the biodegradable waste into biogas and for processing it into a transport fuel.

”A considerable amount of biodegradable waste ends up in general household waste in particular. The treatment process also allows for the recovery of other materials before incineration,” says Pertti Vanhala, Business Director at Oulun Energia.

Biogas helps to curb traffic emissions

Gasum plans to invest not only in the envisaged biogas plant but also in a gas liquefaction unit to enable the biogas produced to be processed into a fuel for heavy duty vehicles. The Laanila plant would be just the second liquefied biogas production plant in Finland.

”Since heavy duty vehicles cannot readily be electrified, liquefied biogas provides the best avenue to cut emissions in truck transport. In May, we opened two new gas filling stations in Oulu, one of which is intended for heavy duty vehicles. During the coming years, Gasum intends to build a total of 50 new liquefied gas filling stations in the Nordic countries,” says Ari Suomilammi, Director, Circular Economy Finland, Gasum.

Besides the new biogas plant, Gasum also plans to enlarge the existing biogas plant in Rusko. The Rusko biogas plant uses separately collected biowaste and local sewage sludge as feedstock from which recycled nutrients are also produced.

Studies show that the Laanila biogas plant would produce around 40,000 MWh of biogas a year. There are plans to increase annual production at the Rusko biogas plant by 20 000 MWh. This additional production would be sent to Laanila for liquefaction and would bring the total annual production of liquefied biogas to 60,000 MWh.

”Together, these projects would produce enough liquefied biogas to replace diesel as fuel in around 120 trucks. Biogas cuts traffic emissions by up to 85% compared with diesel,” Ari Suomilammi sums up.

Local interest is growing in using biogas to reduce traffic emissions. The City of Oulu recently decided to acquire five biogas-powered buses for one of the city’s bus routes.

Aiming to commission the plant in 2021

The environmental impacts of the project have already been assessed and the next steps are to update Laanila eco power plant’s environmental permit and work on the technical design of the project. This will be followed by any investment decision. Similarly, a start has been made on updating the environmental permit for the Rusko biogas plant. The aim is for the Laanila biogas plant to complete during 2021.

“This investment would take the biogas economy forward across Northern Finland by using the latest technology,” Ari Suomilammi and Pertti Vanhala point out.


For more information please contact:

Ari Suomilammi, Director, Circular Economy Finland, Gasum
Phone: +358 400 653 351, firstname.surname(a)

Pertti Vanhala, Oulun Energia, Business Director
Phone +358 44 70 33 701, firstname.surname(a)

The energy company Gasum is a Nordic gas sector and energymarket expert. Together with its partners, Gasum is building a bridge towards a carbon-neutral society on land and at sea.

Oulun Energia is a provider of energy services and clean energy that make everyday life easier in homes, businesses and the society at large. We create brave new innovations in energy production, circulation economy and smart traffic. Our objective: 100% carbon neutral energy production in the 2040s.

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Gasum to strengthen the availability of renewable biogas through acquisition of the Mäkikylä biogas plant in Kouvola, Finland

As the largest biogas producer in the Nordics, Gasum aims to strengthen the availability of biogas in the Nordics. Under the transaction completed on May 17, Gasum has acquired the Mäkikylä biogas plant from water company Kouvolan Vesi Oy. The transaction will allow investments to significantly grow production capacity at the plant. Biogas production must increase in order to meet the ambitious traffic emissions reduction targets looking ahead.

Under the agreement signed between Gasum and Kouvolan Vesi, the Mäkikylä biogas plant and its business, including contracts, will transfer to Gasum on June 17, 2019. The plant comprises the biogas plant building and process equipment located in conjunction with Mäkikylä wastewater treatment plant.

“The transaction now completed ends a process lasting several years during which we have sought an economically and functionally sustainable solution to our biogas plant operations, which are not part of our core business,” sums up CEO Timo Kyntäjä at Kouvalan Vesi.”

The Mäkikylä biogas plant has been underperforming largely because of its small processing capacity. The plant has processed around 20,000 tonnes of biomass a year, which is the amount allowed by its permit. Gasum plans to invest in developing the plant.

“As a company we are committed to growing the supply of biogas as a renewable traffic fuel and as an enabler to achieving traffic emissions reduction targets. This requires increased production of biogas. The transaction will allow us to invest in the expansion of the Mäkikylä plant with the aim of increasing biogas production at the plant. We will also modernize the processes at the plant to bring them into line with today’s requirements,” says Ari Suomilammi, Director, Circular Economy Finland, Gasum.

Gasum currently owns 12 biogas plants in Finland and Sweden, and buys biogas from three partner plants, of which the Mäkikylä plant is one. Gasum has invested in the construction of a biogas plant in Lohja (Finland) and in Nymölla (Sweden) and in the expansion of the Turku biogas plant. The company’s current biogas capacity is around 650 GWh a year.

Completed in 2011, the Mäkikylä bioplant was built by Kymen Bioenergia Oy, whose main owner was KSS Energia Oy. The City of Kouvola transferred the bioplant and its processing plant to the Waterworks in 2014–2015.


For more information please contact:

Ari Suomilammi, Director, Circular Economy Finland, Gasum
Phone: +358 400 653 351, firstname.surname(a)

The energy company Gasum is a Nordic gas sector and energymarket expert. Together with its partners, Gasum is building a bridge towards a carbon-neutral society on land and at sea.

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Biowaste ending up in mixed waste to be used to make road fuel – collaboration for new climate solutions

Finland generates an annual total of more than a million tonnes of mixed waste burnt at waste incineration plants. Mixed waste sent for incineration also contains significant amounts of biodegradable waste that is a valuable feedstock in biogas production. The use of renewable biogas can help achieve significant transport emission cuts. Together with the waste management company Lounais-Suomen Jätehuolto owned by 17 municipalities in Southwestern Finland and the waste-to-energy company Lounavoima, Gasum is looking for a solution on how biowaste included in incinerable waste sent to an upcoming waste-to-energy plant could be utilized in biogas production.

Mixed waste generated in homes typically contains 35-40% biodegradable waste such as food scraps and kitchen paper that is not of significant use at incineration plants in terms of energy production. A larger proportion of waste can be recovered for energy by utilizing biodegradable fractions in biogas production.

Gasum, Lounais-Suomen Jätehuolto and Lounavoima are partnering in a joint project to explore the opportunity to build a waste pre-processing system that will enable the utilization of biodegradable fractions in biogas production to make fuel for transport.  The pre-processing equipment would also enable the removal of other waste fractions such as recyclable metal from waste suitable for incineration.

The separation of biodegradable fractions from mixed waste will not eliminate the need for separate collection of biowaste. Instead, it will supplement existing solutions.

"The best alternative would be no biowaste ending up in mixed waste and all biowaste being delivered via separate collection directly to biogas plants.  However, the separate collection of biowaste does not make that much sense in areas with mainly detached and semi-detached homes or in sparsely populated areas as the volumes per household are low in relation to the collection costs. For as long as there is biodegradable waste ending up in mixed waste, it is important to find solutions on how to utilize it," says Ari Suomilammi, Director, Circular Economy Finland, Gasum.

Increased biogas production plays a major role in action to reach transport emission reduction targets

Reaching the climate targets set requires significant increases in renewable energy production and, consequently, new collaboration models and solutions. Biogas is a local and renewable fuel that can help cut greenhouse gas emissions from transport by up to 85%.

"The Waste-to-Energy plant’s annual volume of 120,000 tonnes of incinerable waste could provide feedstock for the production of more than 40 GWh of biogas – enough to fuel around 4,000 cars for a year,” says Ari Suomilammi.

Gasum has made a strong commitment to transport emission reduction targets by building the Nordic filling station network for heavy-duty road vehicles and offering consumers biogas at Gasum's filling stations in Finland.

A biogas plant is being planned in conjunction with the project, but no construction investment decision has yet been made and the type of collaboration between the partners involved in the project will be specified further later on this year. The feasibility study involves a comparison of the suitability of the Topinoja, Turku, and Korvenmäki, Salo, waste treatment centers for waste pre-processing and biogas production. Gasum will continue the planning of similar projects with other eco-power plants, too. 

For more information please contact:

Ari Suomilammi, Director, Circular Economy Finland, Gasum
Phone: +358 400 653 351, firstname.surname(a)

The energy company Gasum is a Nordic gas sector and energymarket expert. Together with its partners, Gasum is building a bridge towards a carbon-neutral society on land and at sea. Gasum imports natural gas to Finland and promotes circular economy by processing waste and producing biogas and recycled nutrients in Finland and Sweden. The company offers energy for heat and power production, industry as well as road and maritime transport. Gasum is the leading supplier of biogas in the Nordic countries. The company has a gas filling stations network, that also serves heavy-duty vehicles. Gasum is also the leading liquefied natural gas (LNG) player in the Nordic market. The company continues to strengthen the position and infrastructure of LNG and supplies LNG to maritime transport, industry and heavy-duty vehicles in Finland, Sweden and Norway.

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