Gas grid fact file
The Swedish gas grid extends from Dragör in Denmark to Stenungsund, 50 km north of Gothenburg. Including branch pipelines, the grid is over 600 km long.
Natural gas comes to Sweden from the North Sea off the coast of Denmark and Germany via Denmark. Swedegas gas grid extends from Dragör to Stenungsund. There are around 40 metering and control stations throughout the gas grid. At the stations, the pressure is regulated and the volume of gas is metered to ensure customers receive gas at the correct pressure and the correct charge can be made for gas used. After the stations, the gas enters the distribution grid, where it is distributed to the end-users at a lower pressure.
Active corrosion protection
The gas grid is built up of steel pipes with a polyethylene coat to protect against corrosion and active corrosion protection to ensure that the pipes do not rust. The dimensions of the pipes are set and checked to ensure a gas pressure of 80 bar. The pipeline diameter from Denmark to Helsingborg is 600 mm and from Helsingborg to Gothenburg it is 500 mm. From Gothenburg to Stenungsund the pipeline diameter is 400 mm. The pipes in the gas grid are laid underground with a minimum soil cover of 1 metre. Posts have been placed to mark the route taken by the pipeline.
European gas grid
In Europe, there is a very large gas grid with supply pipelines from gas fields in the North Sea, Russia and North Africa. The majority of European countries have several supply points and are interlinked.