ENTSOG Tariff NC - Implementation Document 2nd Edition

To sum up, in Germany there are 4 simple configurations at storage facilities connected to more than one entry-exit system (other configurations exist, where network users partly transfer gas and partly withdraw it into the TSO system from which it was previously injected, but these configurations are not considered here): \\ Case 1: The network user registers on the non-discounted account of the storage operator, and they transfer gas from an entry-exit system to another. In such case, the storage facility is simply used as an IP. The network user pays what they should pay if the storage was an IP (no discount), there is no discrim- ination against a competing IP, and there is no discount reduction . \\ Case 2: The network user registers on the discounted account of the storage operator, and they do not transfer gas from an entry-exit system to another. In such case, the storage facility is simply used as a ‘standard’ storage facility. The network user pays what they should pay for any ‘standard’ storage facility (the 50% discount), there is no discrimination against an IP since the storage facil- ity is not used ‘as an IP’, and there is no discount reduction . \\ Case 3: The network user registers on the non-discounted account of the storage operator, but they do not transfer gas from an entry-exit system to another. There is no discrimination against an IP since the storage facility is not used ‘as an IP’. There is no discount reductio n, since no gas is flowed between entry-exit systems. \\ Case 4: The network user registers on the discounted account of the storage operator, but they transfer gas from an entry-exit system to another. In such case, the storage is used as an IP. To avoid discrimination against some network users, a discount reduction applies . Storage facilities allowing for cross-system use in the Netherlands Gasunie, the Dutch TSO, currently applies a 25% discount at all storage connection points, regardless of whether they are ‘regular’ or ‘cross-system’ storages. No trans- fer fee is used. Only one account per entry-exit system side is used. The process of implementing the TAR NC may alter the provisions at storages allowing for cross-system use. Storage facilities allowing for cross-system use in Slovakia Eustream, the Slovak TSO, has recently applied a reform whereby there is one single domestic entry-exit point. This point covers connection to the TSO, to DSOs and to storages. Therefore, one single entry and exit tariff applies in Slovakia for distribution and storages, implying the lack of a discount for storages currently. Cross-system storages in Slovakia are connected both to the Eustream TSO system and to DSOs

and the Austrian TSO system of Gas Connect Austria. Only one account per entry-exit system side is used.

212 |

TAR NC Implementation Document – Second Edition September 2017