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TAR NC Implementation Document – Second Edition September 2017 |
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CAA RELATING TO TRANSMISSION SERVICES
REVENUE FROM CAPACITY-BASED TARIFFS
This Part considers the CAA on
capacity-based
transmission tariffs.
In this Part, one assumes that contracted capacity at exit IPs corresponds to ‘cross-
system network use’ and contracted capacity at domestic consumption points cor-
responds to ‘intra-system network use’.
Further, Cost Drivers in this Scenario are
a combination of distance and capacity
.
For the expected revenues, the allowed total capacity revenue and a split of this into
exit and entry share is given.
Table B: Average Distance to a specific exit (or entry)
TABLE B: AVERAGE DISTANCE TO A SPECIFIC EXIT (OR ENTRY)
Average distance (km) for each exit point to the group of entry points
IP 1
IP 2
IP Exit 5
IP 3
Consumption
345
509
543
408
282
Average distance (km) for each entry point
to intra exits
to cross exits
LNG
460
663
IP 1
200
436
IP Entry 4
270
460
IP 2
270
328
IP 3
170
413
Table 26:
Average distance to a specific exit (or entry)
Taking into account the capacity and the distance of every entry of the system to one
specific exit, a capacity weighted average distance can be calculated for this exit
point. Capacities are shown in the following Table C. This average distance of one
exit point is determined by the sum of each entry capacity, times the distance to this
respective entry point from the considered exit point, divided by the sum of all entry
capacities. An average distance for a specific exit point would be calculated as in the
following equation.
The calculation of average distances for each entry point to the group of exit points
is carried on by analogue processing. In contrast to exit points, for entry points there
is a distinction regarding the average distance to intra-system exit points and to
cross-system exit points. The distance to intra system exit points is the actual
distance to the exit point Consumption, while the distance to the cross-system exit
points is again calculated with the formula above as the capacity weighted average
between the cross-system exit points. This distinction is made to later define the
intra/cross system drivers for entry points.
PART I