ENTSOG Tariff NC - Implementation Document 2nd Edition

PART II SAME RPM APPLIED JOINTLY BY THE TWO TSOs IN THE SAME ENTRY-EXIT SYSTEM

If there is a merger of the 2 entry-exit systems, the joint application of the RPM by TSOs is the default approach, as per Article 10(1) of TAR NC. After the merger into one entry-exit system, the former IPs that connected the previous entry-exit systems disappear, involving the need for revenue reallocation for each TSO. In the example here, points A1 (for TSO A) and B3 (for TSO B) disappear, and it is therefore necessary to recover the revenues formerly collected there at remaining points. The figure below presents the newly merged entry-exit system.

Entry A2

Connected point A+B

Entry B1

Exit Dom B2

Exit Dom A3

Exit A4

TSO A+B

Figure 67: Map of the network after the merger

The following table represents the remaining points and their technical and forecasted booking capacities, in parallel with the same allowed revenue to recover for each TSO. It is interesting to note that the removal of points A1 and B3 due to the merger has changed the entry-exit split based on the forecasted bookings for both TSOs: it is now 15/85 for TSO A and 80/20 for TSO B.

INPUT DATA

Revenue post-ITC payment

Technical cap. – GWh/h Forecast – GWh/h Entry/Exit Split: Entry Entry/Exit Split: Exit

Entry A2

4

2

TSO A

Exit Dom A3

11

10

15%

85%

70.00m€

Exit A4

3

1

Entry B1

13

12

TSO B

80%

20%

65.00m€

Exit Dom B2

3

3

Entry

17

14

Sum

50%

50%

135.00m€

Exit

17

14

Postage Stamp

CWD

inter-TSO compensation (A -> B)

– 7.32m€

– 6.41m€

ITC value is necessarily defined by RPM calculation (ex post).

Table 45: Input data after the merger (joint case)

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TAR NC Implementation Document – Second Edition September 2017