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TAR NC Implementation Document – Second Edition September 2017 |
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Annex A
Articles 3(19) and 6(4)(b) –
Example of Clustering and
Equalisation
Entry-exit system with two entry points (IP) and three exit points to consumption (C).
Objective: Equalisation applied to the consumption points.
Clustering
Representation of one unique consumption cluster, or virtual consumption point
(VCP), e. g. by using the longitude, the latitude and the capacity of each consump-
tion point.
As explained in Part 1 ‘Overview of the TAR NC requirements’, Chapter II ‘Reference
price methodologies’, Section ‘Article 8(1)(c) – distance calculation’, the calculation
of the shortest pipeline distance can be determined by: (1) selecting a focal point
within the grid representing the cluster; or (2) calculating the weighted average
distance of all physical points combined in the cluster. The tariff at VCP may be
calculated by taking this cluster as one exit point following either of these two
approaches. Applying the RPM will calculate one single exit tariff to each of all three
consumption points.
Figure 59:
A simplified network
C3
C2
C1
IP 1
IP 2
Figure 60:
A simplified network with clusters
VCP
IP 1
IP 2
C1
48,79
2,14
0
15
C2
48,83
2,25
0
10
C3
48,78
2,45
0
5
VCP
48,80
2,28
Table 21:
Clustering points
lat
long
Capacity
Entry
Capacity
Exit