ENTSOG BAL NC Monitoring Report 2016

Yearly BAL.1 indicator

BAL.1 AT, BE/LU, DK, FR, HU, NL, UK-GB (yearly)

The yearly BAL.1 indicator of 100% has been calcu- lated for nine countries (AT, BE/LU, CZ, DK, FR, HU, NL, UK-GB). The TSOs in those countries have con- ducted only STSP on a trading platform for their balancing purposes in GY 2015/2016. (see figure 1) The yearly BAL.1 indicator with a value less than 100% and >0% has been calculated for five balanc- ing zones in four countries (DE, SI, SK and PL) as these indicated the use of STSPs on a trading and/or balancing platform (under interim measures) as well as additional balancing services in their merit order.

STSP Balancing Services

100

%

Figure 1:  Yearly BAL.1 indicator

Germany (Gaspool)

BAL.1 Gaspool (yearly)

The yearly BAL.1 indicator of ca. 97% indicates that the Gaspool market area has been balanced mainly via STSP with a small percentage of balancing servic- es usage in GY 2015/2016. (see figure 2) The average range of BAL.1 on a daily basis in GY2015/2016 is on a low level, except eight days where only balancing services have been used. On all eight days, no STPS were traded by GASPOOL, which indicates that STSP could not fulfil the needed requirements on these days. From the end of April 2016, only STSP where traded for balancing purpos- es, and on many days no balancing actions occurred at all.

STSP Balancing Services

3.12

96.88

%

Figure 2:  Yearly BAL.1 indicator, Gaspool

BAL.1 Gaspool (daily)

120 %

From beginning of May 2016, no balancing services were in use anymore

100

80

60

40

20

At eight days only balancing services have been conducted

0

01/10/2015

01/11/2015

01/12/2015

01/01/2016

01/02/2016

01/03/2016

01/04/2016

01/05/2016

01/06/2016

01/07/2016

01/08/2016

01/09/2016

Figure 3: Daily BAL.1 Gaspool: Usage of STSPs as % of total balancing volume in GY 2015/2016

ENTSOG BAL NC Monitoring Report 2016 |

97