ENTSOG GRIP South - Main Report

6.1.1 Remaining Flexibility

The results of the ENTSOG simulations (Figures 6.3 a+b) show a good level of Remaining Flexibility in the South Region as well as in the rest of the countries in- cluded theNorth-SouthCorridor inWesternEuropeconsideringaReference supply situation. The key conclusion from themodelling is that the gas system in theSouth Regionwill have sufficient capacity to achieve a full supply-demand balance under the scenarios analysed. Additionally, no impact in the South Region has been detected in the analysed supply disruptions. For the simulations, the missing gas supply derived from the Supply Stress is managed by rerouting supply of the interrupted sources through alternative routes (if any) and, finally, by additional gas fromUGS and LNG.

6.1.2 UGSand LNGTerminalsuse:

themainroleofthese facilities

The UGS and LNG Terminals play an important role contributing to cover demand fluctuations, seasonal modulation as well as daily peaks. Although pipeline also contributes to demand fluctuations, the storage dimension makes UGS and LNG Terminals especially appropriate to increase or decrease their level of emission into thenetwork. Taking intoaccount theseaspect, the simulationsdoneconsidering the useof these facilities “as last resort”, try tocapture their featureproviding short term flexibility and security of demand. As it ismentionedbefore, the availability of gas in the facilities to be used as a “last resort” could have a high impact in the SouthRegionRemaining Flexibility. In the results of the analysis developed in the ENTSOG-TYNDP highlighted in the Figure 6.3 it is implicitly assumed that there is enough gas in the LNG tanks to in- crease theSend-out up to thecapacity level; aswell as thewithdrawal from theUGS is not limited by the available Working Gas Volume when the high demand even occurs. These hypotheses must be taken into account in the interpretation of the results for the SouthRegionwhere the role of the LNG Terminals andUGS are very important. For this reason, this report includes specific analysis of these facilities.

Image courtesy of Enagás

ENTSOG–GRIPSouth 2013–2022 |

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