ENTSOG BAL NC Monitoring Report 2016

25%

20%

Max

15%

On 10% of the days when any shipper imbalances occur, the net volume of shipper imbalances relative to the market entry volume of a balancing zone (BAL.4) has a range between +5% and max.+15%. This means that the market is LONG (+) at the end of the days within a range of 10%.

10%

On 80% of the days when any shipper imbalances occur, the net volume of shipper imbalances relative to the market entry volume of a balancing zone (BAL.4) has a range between −5% and +5%. This means that the market is sometimes LONG (+) well as sometimes SHORT (−)at the end of the days within a range of 10%.

5%

0%

– 5%

On 10% of the days when any shipper imbalances occur, the net volume of shipper imbalances relative to the market entry volume of a balancing zone (BAL.4) has a range between −5% and min. −15%. This means that the market is SHORT (−) at the end of the days within a range of 10%.

– 10%

– 15%

Min

– 20%

Balancing zone (no. of days with TSO bal.action)

Map 6:   Example with explanation of the daily BAL.4 indicator in % on days with shipper imbalance volumes in GY 2015/2016

The relationship between BAL.4 and BAL.3 is illustrated in Map 7 below. If BAL.4 is positive, it means that the market is LONG (+), so there is too much gas at the end of the day in the mar- ket. In this case the TSO needs to provide the gas by e.g. selling gas to the rest of the market in order to keep the system balanced (positive BAL.3). If BAL.4 is negative, it means that the market is SHORT (-), so there is not enough gas at the end of the days in the market. In this case the TSO needs e. g. to buy gas from the rest of the market in order to keep the system balanced (negative BAL.3). The countries are clustered in the following maps regarding the applied implementation deadlines into cluster 2015 (Map 8), cluster 2016 (Map 9) and cluster 2019 (Map 10).

Map 8 and map 9 illustrate the countries which applied the implementation deadline by 1 Octo- ber 2015 (cluster 2015). They are differentiated into countries (AT, BE/LU, NL and DK) which indicate the network users with a market signal before undertaking TSO balancing actions on the short term wholesale market (map 8). In oth- er countries (UK-GB, DE, FR, HU and SI) the TSO provides information regarding the overall status of the system, but does not indicate to the network users when undertaking concrete balancing actions on the market. In all 10 countries except Austria, net shipper imbalances occur on a daily basis. On a few days in GY 2015/2016, no shipper imbalances seem to occur at all, the market was completely balanced at the end of the day. Except in the BELUX market areas and NCG where TSO balancing actions have been undertaken on a daily basis, they occurred on less days in the other ones. In all balancing zones the net shipper

25%

20%

BAL.3 (+) = TSO SELL to the market

15%

BAL.4 (+) = LONG market

10%

5%

0%

– 5%

BAL.3 (+) = TSO BUY from the market

BAL.4 (+) = SHORT market

– 10%

– 15%

– 20%

Map 7:   Relationship between daily BAL.4 vs. BAL.3 indicator

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ENTSOG BAL NC Monitoring Report 2016