Wärtsilä to supply two large-scale biogas upgrading plants to Denmark

In Sweden, Wärtsilä will supply two large-scale biogas upgrading plants to different locations in Denmark. The order was placed by Nature Energy, the world’s leading biomethane company. By injecting biomethane – the end product of upgraded biogas – to the gas grid, Denmark will be taking an important step towards its stated ambition of becoming a climate neutral and fossil-free nation. The agreement with Wärtsilä dates back to early 2019, but the project was delayed because of permit applications. Production of the upgrading unit has been initiated in the fourth quarter of 2020, when also the orders were included in Wärtsilä’s order book. 

Currently biomethane accounts for approximately 20 percent of Denmark’s gas consumption, and the aim is for the grid to become totally green by 2035.

The two plants are to be installed in the towns of Kvaers and Kong, with each plant upgrading more than 40 million Nm3 of biogas each year. This will deliver some 470 GWh of green gas energy, equivalent to providing the fuel for more than 45,000 cars. It is expected that the plants will begin injecting biomethane to the Danish gas grid in 2022.