Energy Identification Codes (EICs)

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.

In this section, through the right-hand menu, you will find EIC code lists, documentation and local issuing office website links.

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

For any further information relevant to EDI please contact EDI at

Energy Identification Codes (EIC) Lists

​​​​​ 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.

EDI - Library: Energy Identification Coding Scheme (EIC)

EIC Issuing Offices

List of issuing offices

Downloadable ZIP Files

EIC Check Digit Calculator

List of Allocated EIC Codes

ENTSO-E Disclaimer on Published VAT Codes on the EIC Webpage

The objective of this page is to allow persons involved in the energy market to get information on the Energy Identification Code (EIC) necessary to carry out electronic data interchange (EDI).

In no event shall ENTSO-E be liable for any damages of any kind, including, but not limited to, direct, indirect, general, special, incidental, or consequential damages arising out of any use of the information obtained using this site.

In particular, VAT codes are only provided for information purposes and it is the responsibility of the party to assess the validity using for example the Taxations and Customs Union web site.

In addition, our goal is to minimise disruption caused by technical errors. However some data or information on this page may have been created or structured in files or formats which are not error-free and we cannot guarantee that our service will not be interrupted or otherwise affected by such problems.

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 Reference Manual (version 5.1)

EIC Short guide and FAQ

EIC Data exchange implementation guide
Market Area Analysis v1.0

List of EIC codes


CIO EIC Code Management

ENTSO-E LIO related

ENTSO-E LIO Management

List of allowed EIC functions

All EIC Requests Forms


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 Website Email
27CEPSCZWebsiteEIC WebsiteEmail
28ELESSIWebsiteEIC WebsiteEmail
29ADMIEGRWebsiteEIC WebsiteEmail
30TranselectricaROWebsiteEIC WebsiteEmail
31HOPSHRWebsiteEIC WebsiteEmail
32ESO ADBGWebsiteEIC WebsiteEmail
36NOS BIHBAWebsiteEIC Website
37DVGWDEWebsiteEIC WebsiteEmail
38EleringEEWebsiteEIC WebsiteEmail
39FGSZHUWebsiteEIC WebsiteEmail
EIC WebsiteEmail
42EU-STREAMSKWebsiteEIC WebsiteEmail
43ASTLVWebsiteEIC WebsiteEmail
44Fingrid OyjFIWebsiteEmail (except X codes)
47EirgridIE, NI
WebsiteEIC Website
48NationalGridUKWebsiteEIC WebsiteEmail
49Tennet NLNLWebsiteEmail
50StatnettNOWebsiteEmail (except X codes)
52GTSNLWebsiteEIC WebsiteEmail
53GAZ-SYSTEMPLWebsiteEIC WebsiteEmail
54OSTALWebsiteEIC Website
EIC Website
​61Conexus Baltic Grid​LV​Website​EIC website​Email

Online EIC Codes List

Lio Codelist