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INPUT DATA FOR
INDICATOR BAL.1
DEFINITION
Total volume of STSP for
balancing purposes:
The total gas volumes of all short term standardised products (STSP) [SELL +BUY] which are sold to the market
[SELL] or bought from the market [BUY] by the TSO for balancing purposes on a short-term wholesale market via a
trading platform (Art. 10) where trade notifications are taking into account in its balancing system or via a balancing
platform (art. 47) following the merit order (art. 9).
Formula:
Total volume of STSP [in MWh/runtime/balancing zone] =
∑ volumes of title STSP [SELL +BUY] + ∑ volumes of locational STSP [SELL+BUY] +
∑ volumes of temporal STSP [SELL +BUY] + ∑ volumes of temporal locational STSP [SELL +BUY].
Total volume of Balancing
Services:
The sum of gas volumes [SELL
1)
+BUY
2)
] of all balancing services (according to article 8) which are conducted by the
TSO following the merit order (art. 9) for balancing purposes.
Formula:
Total volumes of Balancing Services [in MWh/runtime/balancing zone] =
∑ volumes of balancing services
1
[SELL+BUY] + ∑ volumes of balancing services
2
[SELL +BUY] +…
+ volumes of balancing services
n
[SELL+BUY].
Total volume of Interim
Measures
The sum of gas volumes [SELL +BUY] of all Interim Measures which are conducted by the TSO following a merit
order for balancing purposes.
Formula:
Total volume of Interim Measures [in MWh/runtime/balancing zone] =
∑ volumes of Interim Measure
1
[SELL +BUY] + ∑ volumes of Interim Measure
2
[SELL +BUY] +…
+ volumes of Interim Measure
n
[SELL+BUY]
Total TSO balancing volume
The sum of gas volumes [SELL +BUY] of all balancing products which are conducted by the TSO following a merit
order for balancing purposes.
Formula:
Total TSO balancing volume [in MWh/runtime/balancing zone] =
Total volumes of STSP [in MWh] + total volumes of balancing services [in MWh] +
Total volumes of Interim Measures [in MWh].
Indicator BAL.1
Indicator BAL.1 (per year) =
Total volume of STSP for balancing purposes/Total TSO Balancing volume
[in % per year].
Indicator BAL.1 (per gas day) =
∑ Total volume of STSP for balancing purposes per gas day/∑ total TSO balancing volume per gas day [in %].
DATA REQUIREMENTS
Unit
Absolute volumes in MWh (provided per gas day)
Minimum unit
MWh (provided per gas day)
Requested runtime
1 October 2015 – 30 September 2016 (gas days)
1) In this case the gas is withdrawn from the network system.
2) In that case, gas is injected into the network system.
INDICATOR BAL.1
DEFINITION
STSP volume as % of total
TSO balancing volume
The BAL.1 indicator is calculated per runtime by dividing the total quantity of gas traded by the TSO via STSPs for balancing
purposes through the total volume of all TSO balancing volumes per balancing zone. The indicator is provided for a yearly
runtime and where additionally balancing services are used in GY 2015/2016 also on a daily basis. (Different runtimes might
be provided for the future.)
If no STSP is implemented in the balancing merit order and/or no balancing actions have been undertaken by the TSO for the
gas day, the BAL.1 indicator is not calculated.
Formula:
= Total traded volume of STSP by TSO (for balancing purposes)/Total TSO balancing volume
[in %/runtime]
Unit
STSP volume of total TSO balancing volume in %
Aim
Maximisation of STSP % rate, where possible.
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ENTSOG BAL NC Monitoring Report 2016