Gaznat's high-pressure transport network comprises over 600 km of pipelines as well as 56 stations. It is connected to the high-pressure European network in five different points: La Cure, La Louvière, Bardonnex, Obergesteln and Ruswil.

On a global scale, gas pipelines create a large network of natural gas "motorways", adding up to a total length of 900'000 km. Distances between a gas field and the consumer can exceed 4'000 km. 

Natural gas is extracted at a pressure of 200 to 300 bar. Dried and purified, it is then transported as a gas at a pressure of 80 bar or as a liquid. This pressure is reduced to 5 bar at delivery stations. From these stations, gas is then under the responsibility of distribution companies for delivery to the final consumer. 

From abroad, natural gas in a gaseous state is transported in thick steel pipelines which can reach a diameter of 1,4 meter. Gas pipelines are buried at a minimum depth of 1 metre (underground pipelines) or immersed (undersea pipelines). The outside of the pipe is insulated with a layer of polyethylene. To prevent corrosion on buried metallic structures, an efficient protection technique is used, cathodic protection.  

At high gas speed, friction gradually reduced the gas pipeline internal pressure. For this reason, compression stations are used to bring the pressure back up to 80 bar. These are installed every 100 km.  

A gas pipeline can transport large amounts of energy without overloading road traffic and without polluting the atmosphere. A 40-cm diameter pipeline can easily transport the energy required to safely meet the demand of cities such as Geneva or Lausanne.