ENTSOG Tariff NC - Implementation Document 2nd Edition

Annex M Article 15 – Example of Calculating Seasonal Factors

This is an example for calculating seasonal factors, the sequence will follow the lettering as set out in Article 15(3) of the TAR NC, and will be based on forecasted flows and the following parameters:

PARAMETERS USED

Monthly

Daily

Power

Multiplier

1.4

3

2

Limit

1.5

3

correction factor applied at step (h)

0.946132187 0.883056708

SEQUENCE OF STEPS

15(3)a

15(3)b

15(3)c

15(3)d

15(3)e

Forecasted flows

Sum of Monthly Forecasted Flows

Usage rate: Monthly flows divided by Sum

Preceding (c) values multiplied by 12

Preceding (d) values raised to be power of 2 (Initial Seasonal Factor)

15

113

0.132743363

1.592920354

2.537395254

Jan

14

113

0.123893805

1.486725664

2.210353199

Feb

12

113

0.10619469

1.274336283

1.623932963

Mar

10

113

0.088495575

1.061946903

1.127731224

Apr

8

113

0.07079646

0.849557522

0.721747983

May

6

113

0.053097345

0.637168142

0.405983241

Jun

5

113

0.044247788

0.530973451

0.281932806

Jul

5

113

0.044247788

0.530973451

0.281932806

Aug

6

113

0.053097345

0.637168142

0.405983241

Sep

8

113

0.07079646

0.849557522

0.721747983

Oct

11

113

0.097345133

1.168141593

1.364554781

Nov

13

113

0.115044248

1.380530973

1.905865769

Dec

Sum

113

238 |

TAR NC Implementation Document – Second Edition September 2017