ENTSOG Southern Corridor (SC) Gas Regional Investment Plan (GRIP) 2014-2023 / Main Report

5.2 Conclusions on the existence of congestion of the Region’s Interconnecting Points The graphs and data presented in the previous para- graph indicate that, regarding the sufficiency of techni- cal capacity and the use made of it, the Region’s IPs belong in different categories. \\ Several IPs have a high percentage of spare capacity. In this category belong the supply Import Points from non EU members of Kipi (TK>GR) and Beregdaróc (UA>HU), as well as the IPs of Csanádpalota (HU>RO), of Gorizia/ Šempeter (IT>SI), of Negru Voda 1 (RO>BG) and of Jidilovo (BG>MK). \\ Some IPs seem to be physically congested, presenting a high average ratio of “used over technical” capacity like the IP of Mosonmagyarovár (AT>HU) with flows often higher than firm capacity over the period examined (Oct. 2011 to Sept. 2013) while the majority of the IPs presents intermediate average usage rates, showing however their maximum use close to or even exceeding the declared firm technical capacity in peak demand situations. \\ In some IPs we notice that the technical capacity in winter is higher than the one in summer. This is due to the fact that in winter the gas flowing through the IP is consumed within a shorter distance from the IP and is therefore subject to lower pressure loss. \\ Regarding the comparison between booking capacities and technical capaci- ties, although we notice high average booking rates in the IPs of Oberkappel, (AT>DE), Murfeld/ Ceršak (AT>SI), Baumgarten (SK>AT), Arnoldstein / Tarvi- sio (AT> IT), Velké Kapušany (UA>SK), Lanžhot (SK>CZ), Negru Voda 2&3 (RO>BG), Jidilovo (BG>MK), Rogatec (SI >HR) and Kulata / Sidirokastro (BG>GR), an easy conclusion on contractual congestion in all these IPs should be avoided as the relevant graphs may correspond to very different situations like, indicatively: – In some cases shippers had proceeded, in the past, to long term booking

saturating the technical capacity. Such situations have been mitigated with the progressive entry into force of CMP provisions and early imple- mentation of CAM Network Code. – in some cases, as the actual flows were reduced, the TSOs proceeded to the sale of interruptible capacity to other shippers. This produces the im- age of a congestion situation while an important part of capacity may be available on a non-interruptible basis. – in other cases TSOs may have reduced the technical capacity, leaving however the margin imposed by the above Network Codes available, due to the lack of capacity booking by shippers.

Southern Corridor GRIP 2014–2023 |

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