ENTSOG BAL NC Monitoring Report 2016

25%

PL: STSP on trading platform/ balancing services

LT: Only balancing services performed

SK: STSP on balancing platform/ balancing services

SE: Weekly or regulated

trades on balancing platform

20%

Balancing services as alternative to balancing platform in place

15%

10%

5%

0%

Greece (TSO bal. = 148 days)

Lithuania (TSO bal. = 362 days)

Slovakia (TSO bal. = 6 days)

Sweden (TSO bal. = 68 days)

Ireland (TSO bal. = 97 days)

UK-NI (TSO bal. = 80 days)

PL-H-gas (TSO bal. = 340 days)

Map 4:  2019 clustered countries – Daily BAL.2 indicator (in %) on days with TSO balancing actions

Map 4 shows countries which applied interim measures (cluster 2019). Compared to most of the countries with a deadline of 1 October 2015, those countries reported much smaller market entry volumes as an indication for the market volume. An exception is Slovakia but it has high transit volumes compared to the inland con- sumption. All of them except Poland reported applying in- terim measures due to the absence of sufficient liquidity of the wholesale gas market. The Polish H-gas balancing zone has the biggest yearly market entry volume of the countries ap- plying interim measures (cluster 2019), but still much smaller than most of countries in cluster 2015. TSO balancing actions occur on 340 days in GY 2015/2016. On those days the daily total TSO balancing volumes relative to the market entry volumes fluctuate in 80% of the time around 2.3% even though in exceptional cases up to 6.3%. The TSO is balancing those volumes via the usage of STSP on a trading platform (with a yearly BAL.1 of 99.91%). Lithuania is a very small gas market. TSO bal- ancing actions occur almost daily in very small volumes, therefore BAL.2 has a very low range below 0.7%. On those days the total TSO bal- ancing is conducted by the usage of balancing services only (BAL.1 is 0%). Slovakia has high transit volumes compared to the internal market consumption. TSO balanc- ing actions occur on only six gas days in GY 2015/2016 on those days the total range is min- imal. The TSO performs its balancing volumes partially via STSP on its balancing platform (BAL.1 of 33.34%), but higher TSO balancing volumes are conducted by using balancing services.

Sweden is one of the smallest European gas markets. TSO balancing action is performed on only 19% of the days in GY 2015/2016, in 80% of the time the range is around 5% of total TSO balancing volumes compared to the market en- try volumes on a daily basis. In exceptional cas- es the indicator can increase up to 10%. The TSO is performing balancing actions by trading the weekly or regulated product when needed on its balancing platform. Ireland, Northern Ireland and Greece are very small gas markets in Europe. The TSOs indicat- ed to perform their balancing volumes by the us- age of balancing services under interim meas- ures as an alternative to a balancing platform. In those countries the number of days when the TSO is performing balancing actions is quite low. Ireland and Northern Ireland balancing actions occur on nearly the same number of days. But the total range of the BAL.2 indicator (of 12.3%) as well as the fluctuation of BAL.2 on 80% of the time (with 5.6%) are higher than in Northern Ireland with a total range of 11.8% and with a fluctuation value of 4.3% on 80% of the time. In Greece the TSO is performing balancing ac- tions on only ca. 40% of days in GY 2015/2016. In those cases one TSO balancing action occurs per day. The range of balancing volumes relative to the market entry volumes is high with 25%, even though in 80% of the time the fluctuation is limited to around 11%. The TSO indicated to keep LNG reserves in LNG terminal tanks when deemed to be necessary for the safe and effec- tive operation of the transmission system. The TSO is procuring those LNG quantities as a balancing service on a daily basis in order to bal- ance the system.

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ENTSOG BAL NC Monitoring Report 2016