What is flowing in our pipelines?

Natural gas is sourced from various locations worldwide and enters Finland through the Balticconnector pipeline as well as the LNG terminals in Inkoo and Hamina. Once the GIPL and Baltic Pipe connections are fully completed, gas can also be imported from Western European sources, such as Norway.

The import of Russian natural gas through the Imatra border point ended on 21 May 2022. Natural gas consists primarily of methane (CH₄), which is lighter than air. It is an odourless and colourless gas, which is why it is odourised to ensure leak detection. When natural gas burns, it forms water and carbon dioxide.

Biogas is a mixture of gases typically containing 40–70% methane. It forms naturally in the environment and is also produced at wastewater treatment plants, landfill sites and with various production technologies. Before injection into the gas network, biogas must be upgraded to increase its methane content.

We define strict gas quality criteria to ensure that customers receive high-quality gas for their usage sites and that equipment can operate efficiently—whether in processes, energy production or as a raw material.

The gas quality properties are indicative.

Component	Biomethane	Natural gas
Methane	95–98 %	85–98 %
Carbon dioxine	0–3 %	< 2,5 %
Nitrogen	0–2 %	< 1 %
Oxygen	0–0,5 %	< 0,02 %
Hydrogen sulphide	Residuals	–
Siloxanes	Residuals	–
Water vapour	Residuals	–
Halogenated hydrocarbons	Residuals	–
Heavier hydrocarbons	–	< 15 %