ENTSOG GRIP SNC 2014-2023

The section below tries to illustrate market behaviour for the relevant interconnec- tion points within the region as observed for the period 2012–2013. An aggregated view per IP is given by combining measured flows, booking data, technical capacities and interhub price spreads on a monthly basis. Special attention should be paid to the evaluation of the presented results as for instance technical, contractual and flow data are always the result of a dual input from both sides of the border, where in case of differences a lesser rule is applied. An important aspect concerns the technical capacity on an interconnection point, as it is not straightforward to determine such a value in a uniform way in an integrated entry-exit system where the considered capacity on one IP has a direct impact on all other IPs of the market area. These firm technical capacities are calculated in advance based on a worst case combination of flow patterns on the concerned grid, where in reality flows on a specific IP could be higher because of favourable flow conditions on other IPs free- ing up space in the network. This implies that on a short-term basis more capacity can become available than was originally calculated on a firm basis from a long term planning perspective. Flows can be even higher when considering the possible ac- tivation of interruptible capacity and operational swaps between adjacent operators. It should be noted that the technical capacities are the result of yearly numbers on both sides of the flange on which the lesser-rule is applied, so not taking into account possible short-term additional capacities made available on the concerned intercon- nection points to accommodate requested nominations.

94

137

312

342

230

37

640

163

567

223

270

230

583

627

392

255

L-gas

H-gas

Figure 3.14: IPs and related technical firm capacities in the South-North Corridor (Source: ENTSOG Capacity Map 2014)

South-North Corridor GRIP 2014–2023 |

37