GAZ-SYSTEM implements the new version of Edig@s-XML format used in data exchange between TSO and network users in nomination process

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In accordance with point 20.1.4 of TNC obliging the TSO to provide information on new data exchange formats six months in advance, we inform that GAZ-SYSTEM will enable the usage of additional version of Edig@s-XML format (version 6.1.) in the data exchange in nomination and matching process as of October 2025.

Edig@s 6.1. is the newest version of Edig@s-XML format used in data exchange between gas market participants in accordance with Commission Regulation (EU) 2015/703 od 30 April 2015 establishing a network code on interoperability and data exchange rules. It further harmonizes the different messages exchanged by gas players to achieve a more aligned implementation across Europe. With regards to nomination process it optimizes the content of NOMINT and NOMRES message depending on the type of connection point. Network users may receive more information in the nomination process for the interconnection points with the adjacent systems (i.e. additional time series with nominations submitted by the counterparty to the adjacent system operator).

Edig@s 6.1. messages will be exchanged using the AS4 protocol as well as via the Information Exchange System (IES) similarly as Edig@s 5.1.

Edig@s format documentation is available at website www.edigas.org.

Detailed information regarding GAZ-SYSTEM implementation are published at the website: For Customers/ Market information/ Data exchange/ Edig@s (link: https://www.gaz-system.pl/en/for-customers/market-information/data-exchange.html).  

GAZ-SYSTEM provides the possibility of continuing to use Edig@s 5.1.
 
Network users currently using Edig@s 5.1. and AS4 protocol in the nomination process may continue this approach until they implement Edig@s 6.1. Also interactive data exchange with Information Exchange System (IES), which may be used as a backup solution, will enable exchanging Edig@s 5.1 messages.

It should be noted that when switching from Edig@s version 5.1 to 6.1. the network users shall ensure that one Edig@s version is used for a given gas day ((in case nomination was submitted in Edig@s 5.1. – the renominations should also be submitted in version 5.1.)