ENTSOG Tariff NC - Implementation Document 2nd Edition

PARAMETERS USED TO CALCULATE THE EX-POST DISCOUNT FOR A DAILY INTERRUPTION

Multiplier for daily standard capacity product

M = 2

Reference price

T = 1€/(kWh/d)/year

Number of Days on which an interruption occurred

D = 5d

Interrupted capacity

I = 1,000 kWh/d

Table 68: Parameters used to calculate the ex-post discount for a daily interruption

The formula below is not set out in the TAR NC and is constructed per ENTSOG’s assumption that it could take account of the amount of interrupted capacity. This formula can be used for ex-post compensation for interruptions on within day products.

Example for a within day interruption

Ex-post compensation = 3 × (M × S × T/365) × (I × D/24)

Where: M

is the level of the multiplier corresponding to the daily standard firm capacity product; is the level of seasonal factor corresponding to the daily standard firm capacity product, if any;

S

T

is the reserve price for yearly firm capacity product;

D

is the number of interrupted hours;

D/24 represents the proportion of the gas day for which the capacity was interrupted ; For leap years, the formula shall be adjusted so that the figure 365 is substituted with the figure 366; I is the amount of interrupted capacity.

PARAMETERS USED TO CALCULATE THE EX-POST DISCOUNT FOR A WITHIN-DAY INTERRUPTION

Multiplier for daily standard capacity product

M = 2

Reference price

T = 1€/(kWh/h)/year

Number of hours on which an interruption occurred

D = 5h

Interrupted capacity

I = 1,000 kWh/h

Table 69: Parameters used to calculate the ex-post discount for a within-day interruption

TAR NC Implementation Document – Second Edition September 2017 | 243