The Energy Identification Code (EIC) is a 16-character identifier (code) used in Europe to uniquely identify market participants and energy resources (entities and objects) related to the electricity and gas sector.

EIC codes are used for:

  • Transmission System Operators, Market Participants such as traders, producers, consumers, power exchanges, grid operators, suppliers, agents, service providers, etc.
  • Local grids where metering points are situated, Market Balance Areas consisting of several local grids, Control Areas, Bidding Zones, etc.
  • The physical lines that connect adjacent market (balance) areas or internal lines within an area, including Transmission lines.
  • Metering points
  • Physical or logical places where an identified object or the IT system of an identified object is or could be located.
  • Any object that generates or consumes energy, including Substations, Generation units and Power plants.

The EIC codes are used — among others — in platforms that support EU regulations on transparency and integrity:

  • ENTSO-E Transparency Platform for electricity[1]
  • ENTSO-G Transparency Platform for gas[2]
  • ARIS platform

Actors involved in the EIC coding scheme

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The scheme is supported by a central issuing office (CIO), which function is exercised by the ENTSO-E Secretariat for both the electricity and gas sectors, and ENTSO-E-authorised Local Issuing Offices (LIOs) in Europe. As of 2024-12-17, there are 62 LIOs[3]

EIC consists of 16 characters structured as follows:[4][5]

  • 2 digits: LIO id
  • 1 letter: resource type as per the table below.
  • 12 chars: LIO-specific identifier, padded on the right with dashes
  • 1 char: checksum

EIC types (see EIC Definitions for more details[6]):

typename
ASubstation
TTieline
VLocation
WResource Object
XParty
YArea or Domain
ZMeasurement point

On 2021-12-16, IANA registered the urn:eic URN namespace,[7] so now EIC can be used in making semantic triples of Common Information Model (electricity) data or other energy Linked Open Data.

References

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  1. ^ "ENTSO-E Transparency Platform". Retrieved 22 August 2022.
  2. ^ "ENTSO-G Transparency Platform". Retrieved 22 August 2022.
  3. ^ "EIC LIO Websites". Energy Identification Codes (EICs). ENTSO-E. Retrieved 17 December 2024.
  4. ^ "THE ENERGY IDENTIFICATION CODING SCHEME (EIC) REFERENCE MANUAL" (PDF). ENTSO-E. 2022-02-01. p. 16. Retrieved 17 December 2024.
  5. ^ "EIC Codes". BulgarTransGaz. Retrieved 17 December 2024.
  6. ^ "Definitions of EIC functions" (PDF). ENTSO-E. October 2024. Retrieved 17 December 2024.
  7. ^ "Namespace Registration for Energy Identification Coding Scheme (EIC)". IANA. 16 December 2021. Retrieved 22 August 2022.


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