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TAR NC Implementation Document – Second Edition September 2017
Post-adjustment exit tariffs and exit revenues:
for exit points to storage facilities, a
tariff discount is applied, as per Article 9(1). For simplicity, one assumes that the
discount at exit points to storage facilities is 50%. This implies that pre-adjustment
tariffs are divided by 2 for exit points to storages only (cf.
TEx
_adjusted
column). With-
out any correction, the TSO would under-recover its allowed revenue at exit points
of 500€ (cf.
RE
x_adjusted
column).
Therefore, adjusted tariffs are rescaled upwards by a multiplicative factor of
500/499.33 (storage points are also rescaled as per Article 6(4)). The final exit tar-
iffs (TE
x_final
) and the final exit revenues (RE
x_final
) are then calculated. One of the
advantages of this multiplicative rescaling factor, compared to an additive rescaling
factor, is that there is no change in the relative tariffs charged at exit points.
TARIFF TABLE AT EXIT POINTS
Storage adjustment at exit points
Exit points W
cex
R
SumEx
R
Ex
T
Ex
Storage? T
Ex_adjusted
R
Ex_adjusted
T
Ex_final
R
Ex_final
A
0.2% 500
0.86 0.8564 yes
0.4282
0.4282 0.4288 0.4288
B
27.6%
137.77 1.5308 no
1.5308 137.7703 1.5328 137.9557
C
0.1%
0.49 0.2437 yes
0.1218
0.2437 0.1220 0.2440
H
12.0%
59.75 0.9959 no
0.9959 59.7530 0.9972 59.8334
I
13.7%
68.72 1.3744 no
1.3744 68.7196 1.3762 68.8121
K
11.5%
57.54 1.4385 no
1.4385 57.5409 1.4405 57.6183
M
21.3%
106.44 1.1826 no
1.1826 106.4365 1.1842 106.5797
N
1.7%
8.33 0.8335 no
0.8335
8.3350 0.8346 8.3462
O
7.9%
39.59 0.7919 no
0.7919 39.5933 0.7929 39.6466
P
2.1%
10.35 1.0348 no
1.0348 10.3478 1.0362 10.3617
R
2.0%
10.16 0.4233 no
0.4233 10.1599 0.4239 10.1736
100.0%
500.00
499.33
500.00
Table 39:
Tariff table at exit points
In conclusion, as described in the TAR NC, the CWD counterfactual is obligatory for
the purpose of consultation per Article 26 unless the proposed RPM fully coincides
with the CWD counterfactual.