We maintain a list of Shippers (ZUP) who offer fall-back supply to final customers connected to the network.

If you hold a valid licence to trade in gaseous fuels and would like to be included in the list of fall-back suppliers:
  1. sign an annex to your transmission contract, in which we will specify the detailed conditions for inclusion or exclusion from the list
  2. submit your application for inclusion in the list
  3. following analysis of your application, we will inform you whether you will be included in the list.