ENTSOG Implementation and Monitoring Report 2017 - Balancing Network Code

2.7.2 Information Model

Three different information models for daily and non-daily metered off-takes are allowed in BAL NC. These are a ‘base case’ model, a ‘variant 1’ and a ‘variant 2’. In Article 35 and 36 of BAL NC it is specified how allocation data is calculated and how and whether forecasts are provided. According to the definitions in BAL NC, ‘base case’ means the model for information provision where the information on non-daily metered off-takes consists of day ahead and within day forecasts; ‘variant 1’ means the model for information provision where the information on non-daily metered and daily metered off-takes is based on apportionment of measured flows during the gas day and ‘variant 2’ means the model for information provision where the information on non-daily metered off-takes is a day ahead forecast.

Details per country on the information model adopted can be found in Annex VI.

The following map illustrates which information model applied in the respective countries by 1 October 2017. 21 countries (AT, BE/LU, BG, CZ, DE, DK, EE, ES, FR, HU, IE, IT, LT, LV, NL, PL 1) , PT, SE, SI, UK-GB and UK-NI) reported having chosen an information model by 1 October 2017. Croatia and Romania responded that it is still in pro- gress. Slovakia repeated since having no non- daily metered off-take points connected to the transmission system it is not necessary. Greece stated that their NRA is investigating the adop- tion of the most suitable information model.

1) For the Polish TGPS balancing zone the information model provisions are reported as not applicable as it has no non-daily metered off-takes and no DSO is connected to the system.

Variant 1

Variant 2

Under discussion /n/a

Base Case Model

a) Croatia plans to implement Daily imbalance charge as of 1 April 2017. b) Bulgaria plans to implement Interim imbalance charge during 2017. Map 4:  Information model chosen by NRA by 1 October 2017

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ENTSOG BAL NC Implementation and Effect Monitoring Report 2017