The Danish gas transmission system transports approx. 8 billion cubic metres of natural gas a year. The system consists of a transmission grid and distribution grids on land and of marine pipelines at sea.

Energinet.dk owns the transmission grid running north-south and east-west in Denmark.

From the North Sea to shore
The natural gas from the Danish section of the North Sea is transported in two marine pipelines from the Tyra and Syd Arne fields to the shore just north of Esbjerg.

On land the natural gas passes through a gas treatment plant in Nybro near Varde. Here, the quality of the gas is checked and measured. The plant can also dry and desulphurise the gas, if necessary.

From Nybro, the gas it sent to customers in Denmark and in other countries or for storage at one of two subterranean natural gas storage facilities. The storage facilities are situated in Lille Torup north of Viborg in Jutland and in Stenlille near Sorø on Zealand.

Gas storage facilities
The storage facilities are filled up during the summer months when gas consumption is low in Denmark. As the weather gets colder and consumption starts to exceed the daily gas production, production is supplemented with gas from the storage facilities. Moreover, gas from the storage facilities is used in situations when the supply from the North Sea is disrupted.

Main system
The marine pipelines and the transmission system, also called the high-pressure grid, make up the backbone of the system. In this system, the natural gas is transported at a pressure of more than 50 bar.
 
Energinet.dk owns and operates the Danish transmission grid on land.

From main system to end-users
The distribution grid, which is a low-pressure grid, takes the natural gas from the transmission grid to end-users. There are approx. 17,000 kilometres of distribution pipelines for the transport of natural gas in Denmark.

Part of the European gas system
The Danish gas system is connected with the rest of Europe via pipelines to Germany and Sweden, and Denmark thus enjoys a central position in relation to the transport of, trade in and storage of natural gas.