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TAR NC Implementation Document – Second Edition September 2017 |
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Table 41:
Postage stamp before the merger
Then, tariffs are calculated in the case of the postage stamp RPM and following the
rules of the CWD counterfactual, according to Article 8.
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For postage stamp
, entry (resp. exit) tariffs are derived for each TSO by
multiplying the allowed revenue by the entry (resp. exit) share of revenues, and
dividing the result by total forecasted entry (resp. exit) bookings. Tariffs are
identical for all points in entry and all points in exit: this is a result of postage
stamp. This is shown in the table below.
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For CWD
, given the 2 cost drivers, calculations are more complex. Compared to
postage stamp, it is necessary to consider distances between points. In accord-
ance with Article 8 on CWD counterfactual, distance is here supposed to be
measured by the shortest pipeline distance, which is the actual distance along
pipelines that is necessary to connect two points of the network. Tariffs derived
with the CWD RPM are presented in the above table, but the steps to calculate
them are developed below.
TSO A
TSO B
Exit B3
Exit A4
Entry A1
Entry A2
Exit Dom B2
Exit Dom A3
Distances – km
Figure 66:
Distance map before the merger
Entry B1
250
300
50
50
150
150
500
200
TSO A Total length: 950 km
TSO B Total length: 700 km
TARIFFS €/(kWh/h)/a
Postage Stamp
CWD
TSO A
Entry A1
3.18
3.07
Entry A2
3.18
3.67
Exit Dom A3
3.18
3.00
Exit A4
3.18
5.00
TSO B
Entry B1
2.71
2.71
Exit Dom B2
2.71
2.38
Exit B3
2.71
2.82