EnviTec Anlagenbau GmbH & Co. KG has successfully commissioned a combined biogas production and gas upgrading plant for Estonian dairy company Halinga OÜ, supporting the company's environmental and sustainability targets.
Located in Langerma, in the Põhja-Pärnumaa municipality of the Pärnu region, the plant is the fourth gas upgrading facility EnviTec has delivered in Estonia — and the first fully integrated plant the company has built in the country, combining raw biogas production with its EnviThan gas upgrading technology.
Roland Kurney, Project Manager at EnviTec Anlagenbau, said the customer's confidence in the company's membrane-based gas upgrading technology led it to also entrust EnviTec with raw biogas production for the project.
The plant was completed within a year, officially opening on 16 June, with Halinga OÜ handling all civil works, building construction, site setup and interface management during the construction phase.
The plant uses slurry and organic residues from Halinga's dairy operations as feedstock, producing around 600 Nm³ of biomethane per hour. Digested substrates are temporarily stored in two lagoons before being applied to agricultural land as fertiliser. Halinga OÜ, one of Estonia's largest dairy producers, operates with more than 3,000 animals across 3,700 hectares and is a significant regional employer.
Halinga is part of Infortar AS Group, an internationally active consortium of 107 companies focused primarily on maritime transport, energy and real estate. Infortar and its partners have invested around €30 million in biomethane plants to date. Unlike some other European markets, biomethane produced in the Baltic region is not exported but used locally as a transport fuel.
Martti Talgre, Managing Director of Infortar AS, said the introduction of CNG refuelling now allows biomethane produced on site to be used directly as a climate-friendly fuel, closing the company's value chain and supporting sustainable mobility in the region. The main off-takers of the fuel include public transport operators in Tartu, Rakvere and Pärnu.
The project received funding from the European Union's NextGenerationEU Recovery and Resilience Facility, supporting both the green transport sector and regional value creation.
Lars von Lehmden, Managing Director of EnviTec Anlagenbau, said Estonia offered a highly attractive environment for renewable energy investment. EnviTec's EnviThan plants in the country now supply approximately 199 GWh of domestically produced biomethane to Estonia's transport sector annually — enough to fuel an estimated 6,000 to 7,000 trucks a year.
Von Lehmden added that demand is also growing in the CO2 liquefaction market, where liquid CO2 is used across the beverage industry for cooling, freezing and carbonation, as well as in chemical industry applications and the production of synthetic fuels linked to the energy transition.
EnviTec Biogas commissions first fully integrated biogas and biomethane plant in Estonia
