Energy Identification Codes (EICs)

Access EIC list

Over many years, initially within ETSO’s Task Force Electronic Data Interchange and subsequently within ENTSO-E’s Working Group Electronic Data Interchange, a coding scheme has been developed, managed and maintained to facilitate cross-border exchanges and to efficiently and reliably identify different objects and parties relating to the Internal Energy Market (IEM) and its operations.

This is known as the Energy Identification Coding (EIC) scheme, approved by ENTSO-E for the harmonisation and implementation of standardised electronic data interchanges.

The scheme is supported by a central issuing office (CIO – ENTSO-E’s Secretariat) and ENTSO-E-authorised local issuing offices (LIOs) across Europe. These LIOs are electricity and gas Transmission System Operators along with third party associations such as A&B, APCS, BDEW, DVGW, EFET and ENTSOG, which, in liaison with taxation offices also, are responsible for the EIC scheme operations.

Any questions on ENTSO-E’s Energy Identification Code scheme and its supporting structure should be directed to:

For any further information relevant to Electronic Data Interchange please contact EDI at

Energy Identification Codes (EIC) Lists

​​​​​ Access EIC list

This section provides links by code type, to all active and international EIC codes, published by the central issuing office (CIO) along with a tool to validate an EIC code (EIC check digit calculator).

For all existing EIC codes, both local and international, please refer to the EIC LIO Websites page.

Downloadable ZIP Files

Energy Identification Codes (EIC) Documentation

This section provides information and documentation downloads on the fundamentals, governance and operations of the EIC scheme, in relation to both the established local issuing offices [LIOs] and the central issuing office [CIO].



EIC LIO Websites

LIO CodeNameCountryWebsiteEIC WebsiteEmailOperates in Electricity​Operates in Gas
10ENTSO-EEUWebsiteEIC WebsiteEmail​✓
11BDEWDEWebsiteEIC WebsiteEmail​✓
12SwissgridCHWebsiteEIC WebsiteEmail​✓​✓
13A&BATWebsiteEIC WebsiteEmail
14APCSATWebsiteEIC WebsiteEmail
15MavirHUWebsiteEIC WebsiteEmail​✓
16RENPTWebsiteEIC WebsiteEmail​✓​✓
17RTEFRWebsiteEIC WebsiteEmail​​✓
18REEESWebsiteEIC WebsiteEmail​✓​✓
19PSE S.A.PLWebsiteEIC WebsiteEmail​✓
20CREOSLUWebsiteEIC WebsiteEmail
21ENTSO-GWebsiteEIC WebsiteEmail​✓
22EliaBEWebsiteEIC WebsiteEmail​✓
23EFETWebsiteEIC WebsiteEmail​✓ (only X codes)​✓
24SEPSSKWebsiteEIC WebsiteEmail​✓
25AGGMATWebsiteEIC WebsiteEmail​✓​✓
26TernaITWebsiteEIC WebsiteEmail
27CEPSCZWebsiteEIC WebsiteEmail​✓​✓
28ELESSIWebsiteEIC WebsiteEmail​✓
29ADMIEGRWebsiteEIC WebsiteEmail​✓
30TranselectricaROWebsiteEIC WebsiteEmail​✓
31HOPSHRWebsiteEIC WebsiteEmail​✓​✓
32ESO ADBGWebsiteEIC WebsiteEmail​✓
36NOS BIHBAWebsiteEIC Website​✓
37DVGWDEWebsiteEIC WebsiteEmail​✓
38EleringEEWebsiteEIC WebsiteEmail​✓​✓
39FGSZHUWebsiteEIC WebsiteEmail
40EPIASTRWebsiteEIC WebsiteEmail​✓
41LITGRID UABLTWebsiteEmail​✓
42EU-STREAMSKWebsiteEIC WebsiteEmail
43ASTLVWebsiteEIC WebsiteEmail​✓
44Fingrid OyjFIWebsiteEmail​✓ (except X codes)
47EirgridIE, NIWebsiteEIC WebsiteEmail​✓​✓
48NationalGridUKWebsiteEIC WebsiteEmail​✓
49Tennet NLNLWebsiteEmail
50StatnettNOWebsiteEmail​ ✓ (except X codes)
52GTSNLWebsiteEIC WebsiteEmail​✓
53GAZ-SYSTEMPLWebsiteEIC WebsiteEmail​✓
54OSTALWebsiteEIC WebsiteEmail​✓
55XOSERVEUKWebsiteEIC WebsiteEmail​✓
​60Transgaz​RO​WebsiteEIC Website​Email✓​
​61Conexus Baltic Grid​LV​WebsiteEIC WebsiteEmail✓​