ENTSOG Implementation and Monitoring Report 2017 - Balancing Network Code

PART II SECOND ENTSOG REPORT ON EFFECT MONITORING OF BAL NC

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EXECUTIVE SUMMARY

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1 INTRODUCTION

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2 DESCRIPTION, PRESENTATION OF THE RESULTS   AND ANALYSIS OF THE FIVE EFFECT MONITORING   INDICATORS 47 2.1 Indicator BAL.1: Balancing means used by TSO as % of total TSO balancing volume ��������� 47 2.2 Indicator BAL.2: Total TSO balancing volume as % of market volume ��������������������������������� 50 2.3. Indicator BAL.3: Net TSO balancing volume as % of market volume vs. Indicator BAL.4: Net shipper imbalance volume as % of market volume ������������������������������������������������������� 54 2.4. Indicator BAL.5: Average shipper’s cost of being balanced by a TSO ����������������������������������� 59

3 CONCLUSION

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4 ANNEXES

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Annex I: Yearly market (entry) volumes and domestic consumption ��������������������������������������� 62 Annex II: Number of days a TSO has taken balancing actions ������������������������������������������������� 63 Annex III: Yearly volume trade per TSO, market entry volume and percentage of TSO gas traded compared to the market volume ������������������������������������������������������������������� 64 Annex IV: Yearly volume trade per TSO, domestic consumption and percentage of TSO gas traded compared to the domestic consumption ������������������������������������������������������� 65 Annex V: Numbers of days during the year TSO are taking buy actions and sell actions ����������� 66

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ENTSOG BAL NC Implementation and Effect Monitoring Report 2017 | 3

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