ENTSOG Tariff NC - Implementation Document 2nd Edition

ARTICLE 13 LEVEL OF MULTIPLIERS AND SEASONAL FACTORS

Responsibility: subject to consultation per Article 28(1) by NRA; subject to decision by NRA

General The level of multipliers must fall within the ranges, 1–1.5 for quarterly and monthly products and 1–3 for daily and within-day products, as shown in Figure 22. Where seasonal factors are applied, the arithmetic mean of the multiplier for the applicable standard capacity product and the relevant seasonal factors (M x SF) must be within the same range as shown in Figure 22, over the gas year. Where the resulting value is outside the range a correction factor should be applied in order to bring the value within the required range applicable to the relevant standard capacity product. For quarterly and monthly products the correction factor is calculated by dividing the resulting value above the range by 1.5, and where the resulting value is below the range, 1 should be divided by this value. For daily and within-day products the values 3 and 1 should be used. For an example in calculating the seasonal factors and applying the correction factor to the value derived from multiplying the seasonal factor and multiplier, please see Annex M – example of calculating seasonal factors.

quarterly & monthly

0

1

1.5

3

?

duly justified cases

daily & within-day

duly justified cases

Pre April 2023 Post April 2023 0

quarterly & monthly

1

1.5

duly justified cases

daily & within-day

Figure 22: Level of multipliers and seasonal factors

Below are sections dedicated to Articles 14 and 15, explaining how to calculate reserve prices without and with seasonal factors.

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TAR NC Implementation Document – Second Edition September 2017