ENTSOG Tariff NC - Implementation Document 2nd Edition

MONTHLY SEASONAL FACTORS

15(3)f

15(3)h Monthly SF

Preceding (e) values multiplied by the Multiplier (average is outside range)

Preceding (e) values (Initial Seasonal Factors) multiplied by thecorrection factor

3.552353356

2.400711322

Jan

3.094494479

2.091286307

Feb

15(3)g

2.273506148

1.536455246

Mar

We can see from the previous values that the average of the SF x Multiplier is above the range 1 – 1.5 as set out in the TAR NC. To bring them within range the correction factor is applied, which is calculated by dividing 1.5 by the initial sea- sonal factor

1.578823714

1.06698281

Apr

1.010447177

0.682868998

May

0.568376537

0.384113811

Jun

0.394705928

0.266745702

Jul

0.394705928

0.266745702

Aug

0.568376537

0.384113811

Sep

1.010447177

0.682868998

Oct

1.910376694

1.2910492

Nov

2.668212076

1.803200948

Dec

Average

1.585402146

DAILY/WITHIN DAY SEASONAL FACTORS

15(3)f

15(4) Daily/Within day SF

Preceding (e) values multiplied by the Multiplier (average is outside the range)

Preceding (e) values (Initial Seasonal Factors)

multiplied by the correction factor

7.612185762

2.2406639

Jan

6.631059597

1.95186722

Feb

15(3)g

4.871798888

1.434024896

Mar

We can see from the previous values that the average of the SF x Multiplier is above the range 1 – 3 as set out in the TAR NC. To bring them within range the correction factor is applied, which is calculated by dividing 3 by the initial seasonal factor

3.383193672

0.995850622

Apr

2.16524395

0.637344398

May

1.217949722

0.358506224

Jun

0.845798418

0.248962656

Jul

0.845798418

0.248962656

Aug

1.217949722

0.358506224

Sep

2.16524395

0.637344398

Oct

4.093664343

1.204979253

Nov

5.717597306

1.682987552

Dec

Average

3.397290312

Table 65: Sequence of steps taken to calculate the seasonal factors

These calculations derive the monthly and daily/within-day Seasonal Factors. The figure below represents the forecasted flows and the calculated seasonal factors for the monthly seasonal factors.

TAR NC Implementation Document – Second Edition September 2017 | 239