ENTSOG Tariff NC - Implementation Document 2nd Edition

Annex F Article 9 – Example of a Discount Reduction at Storage Facilities with Access to More than One System As a default rule, the TAR NC states that storage tariffs require a 50% discount, with the potential for higher discounts up to 100%. However, there is the potential for an exemption where the location of storage results in the entry and exit of gas being used as an IP. Such storage facilities that are connected to several systems and are actually used as IPs constitute a minority of storage facilities across Europe. In practice, the commercial handling of these storages differs from one MS to another. This Annex aims to provide a panorama of the different approaches used by European TSOs connected to such storage facilities. The approaches currently followed in Austria, France, Germany, the Netherlands and Slovakia are described hereafter. They may have to change to ensure compliance with the TAR NC. Storage facilities allowing for cross-system use in Austria Gas Connect Austria, the Austrian TSO concerned by such storages, applies discounts for all storage facilities. They are based on tariffs derived from the reference price methodology, an equalisation adjustment, and tariffs cannot in- crease beyond a certain threshold which is defined by comparison with the last regulatory period. Only one account per entry-exit system side is currently used at such specific storages.

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