The varying gas qualities are due to natural variations in the gas from the North Sea and withdrawals from the gas storage facilities. This also means that consumers may be supplied with gas that is a mixture from several supply areas.
The variations in the gas quality are made public day by day and month by month for natural gas in the Danish natural gas system in order to make it possible to evaluate the operating conditions. These data are collected from Energinet.dk’s control centre. The information cannot be used for settlement of natural gas.