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TAR NC Implementation Document – Second Edition September 2017
Multiple TSOs at either or each side of the border
Figure 30 below illustrates the simplest example of multiple TSOs at either/each side
of the border between the entry-exit systems: two TSOs at only one side of the
border. The example assumes that these two TSOs are within the same entry-exit
system, and that each applies the RPM separately
1)
with forecasted contracted
capacity as an input parameter.
In this example, the calculations by each TSO will not suffice for deriving one VIP
tariff at the side of the border with two TSOs; an additional calculation is necessary.
TSO C and TSO E must calculate an average of the respective values resulting from
their fulfilment of the first step. It is suggested that this should be a weighted average,
where the weights depend on the key cost driver such as forecasted contracted
capacity.
1) For details on approaches for applying RPM(s) in a multi-TSO entry-exit system within a MS, see
Chapter II ‘Reference price methodologies’, Section ‘Articles 10 and 11 – multi-TSO arrangements’.Figure 30:
Illustration of the VIP with two TSOs at one side of the
border
entry-exit system 1
entry-exit system 2
TSO C
€ 0.6 / MWh
TSO E
€ 1.6 / MWh
TSO E
€ 0.4 / MWh
TSO C
€ 1.0 / MWh
CAP 20
CAP 140
Red IP
Green IP
VIP
TSO D
€ 1.8 / MWh
TSO D
€ 2.0 / MWh
CAP 40
CAP 20
CAP 60