European Network of Transmission System Operators for Electricity

(Redirected from NORDEL)

ENTSO-E, the European Network of Transmission System Operators, represents 39 electricity transmission system operators (TSOs) from 35 countries across Europe, thus extending beyond EU borders. ENTSO-E was established and given legal mandates by the EU's Third Package for the Internal energy market in 2009, which aims at further liberalising the gas and electricity markets in the EU.[1]

European Network of Transmission System Operators for Electricity
Formation19 December 2008; 14 years ago (2008-12-19)
Legal statusAISBL
PurposeENTSO-E promotes closer cooperation across Europe’s TSOs to support the implementation of EU energy policy and achieve Europe’s energy & climate policy objectives, which are changing the very nature of the power system
HeadquartersRue de Spa 8
Brussels, Belgium
Region served
Transmission system operators
Main organ


On 27 June 2008, 36 European electricity transmission system operators (TSOs) signed in Prague a declaration of intent to create the ENTSO-E.[2] ENTSO-E was established on 19 December 2008 in Brussels by 42 TSOs as a successor of six regional associations of the electricity transmission system operators.[3][4] ENTSO-E became operational on 1 July 2009. The former associations ETSO, ATSOI, UKTSOA, NORDEL, UCTE and BALTSO became a part of the ENTSO-E, while still offering data by their predecessors for public interest.[5]

Creation of ENTSO-E was initiated by the adoption of the European Union third legislative package on the gas and electricity markets.[2] In 2003, the European Commission conducted a sector inquiry concerning the competition of electricity market in six European countries.[6] Examining competition in these countries, the final report stated serious issues to be solved.[7] It was noticed that the integration between member state's markets is still insufficient. Additionally, the absence of transparently available market information was assessed.[6] As a result, the third legislative package on the EU gas and electricity markets was adopted by the European Commission in September 2007.[8]


According to its website, "ENTSO-E promotes closer cooperation across Europe’s TSOs to support the implementation of EU energy policy and achieve Europe’s energy & climate policy objectives, which are changing the very nature of the power system. The main objectives of ENTSO-E centre on the integration of renewable energy sources (RES) such as wind and solar power into the power system, and the completion of the internal energy market (IEM), which is central to meeting the European Union’s energy policy objectives of affordability, sustainability and security of supply. [...] ENTSO-E aims to be the focal point for all technical, market and policy issues relating to TSOs and the European network, interfacing with power system users, EU institutions, regulators and national governments."[9]


TSOs are responsible for the bulk transmission of electric power on the main high voltage electric networks. TSOs provide grid access to the electricity market players (i.e., generating companies, traders, suppliers, distributors, and directly connected customers) according to non-discriminatory and transparent rules. In many countries, TSOs are in charge of the development of the grid infrastructure, too. TSOs in the European Union internal electricity market are entities operating independently from the other electricity market players (unbundling).[10]

ENTSO-E contained 39 Member TSOs from 35 countries as of September 2022.[11] Due to Brexit three Great Britain based operators left and only Northern Ireland's SONI remains from the UK.[12]

On 14 January 2016 TEİAŞ signed an agreement with ENTSO-E to become first observer member, the agreement expired in January 2019.[13] On 26 April 2022 Ukrenergo signed Observer Membership Agreement with ENTSO-E.[14] On 13 December 2022 TEİAŞ signed a new Observer Membership Agreement that will run for a period of three years.[15]

ISO country code Country TSO Abbr.
AL Albania Operatori i Sistemit te Transmetimit OST
AT Austria Austrian Power Grid AG APG
AT Austria Vorarlberger Übertragungsnetz VUEN
BA Bosnia and Herzegovina BiH Independent System Operator NOS BiH
BE Belgium Elia Transmission Belgium Elia
BG Bulgaria Electroenergien Sistemen Operator ESO
HR Croatia Croatian Transmission System Operator HOPS
CY Cyprus Cyprus Transmission System Operator Cyprus TSO
DK Denmark Energinet
EE Estonia Elering
FI Finland Fingrid
FR France Réseau de Transport d'Électricité RTE
DE Germany TransnetBW TNG
DE Germany Tennet TSO TTG
DE Germany Amprion
DE Germany 50Hertz Transmission 50Hertz
GR Greece Independent Power Transmission Operator IPTO (or ADMIE)
HU Hungary MAVIR Magyar Villamosenergia-ipari Átviteli Rendszerirányító ZRt. MAVIR
IS Iceland Landsnet
IE Ireland EirGrid
IT Italy Terna
LV Latvia Augstsprieguma tīkls AST
LT Lithuania Litgrid
LU Luxembourg Creos Luxembourg
MK North Macedonia MEPSO
ME Montenegro Crnogorski elektroprenosni sistem AD CGES
NL Netherlands TenneT TTN
NO Norway Statnett
PL Poland Polskie Sieci Elektroenergetyczne PSE
PT Portugal Redes Energéticas Nacionais REN
RO Romania Transelectrica
RS Serbia Elektromreža Srbije EMS
SK Slovakia Slovenská elektrizačná prenosová sústava SEPS
SI Slovenia Elektro-Slovenija ELES
ES Spain Red Eléctrica de España REE
SE Sweden Svenska Kraftnät SVK
CH Switzerland Swissgrid Swissgrid
GB United Kingdom System Operator for Northern Ireland SONI


ISO country code Country TSO Abbr.
UA Ukraine Ukrenergo Ukrenergo
TR Turkey Turkish Electricity Transmission Corporation TEİAŞ

Geographical areaEdit

Map of the extent

The geographical area covered by ENTSO-E's member TSOs is divided into five synchronous areas and two isolated systems (Cyprus and Iceland). Synchronous areas are groups of countries that are connected via their respective power systems. The system frequency (50 Hz, with usually very minor deviations) is synchronous within each area, and a disturbance at one single point in the area will be registered across the entire zone. Individual synchronous areas are interconnected through direct current interconnectors.

The benefits of synchronous areas include pooling of generation capacities, common provisioning of reserves, both resulting in cost-savings, and mutual assistance in the event of disturbances, resulting in cheaper reserve power costs (for instance in case of a disturbance or outage).[16]

Legal basisEdit

The Third Energy Package and Regulation (EC) No 714/2009[17] on conditions for access to the network for cross-border exchanges in electricity regulation stipulate ENTSO-E's tasks and responsibilities. Regulation (EU) 838/2010[18] on guidelines relating to the inter-TSO compensation mechanism sets out the methodology by which TSOs receive compensation for the costs incurred in hosting cross-border flows of electricity. Regulation (EU) 347/2013[19] on guidelines for trans-European energy infrastructure defines European Projects of Common Interest (PCIs)[20] identifies ENTSO-E's ten-year network development plan (TYNDP)[21] as the basis for the selection of PCIs. ENTSO-E is also mandated to develop a corresponding cost–benefit methodology[22] for the assessment of transmission infrastructure projects.

The Transparency Regulation (EU) No. 543/2013[23] on submission and publication of data in electricity markets makes it mandatory for European Member State data providers and owners to submit fundamental information related to electricity generation, load, transmission, balancing, outages, and congestion management for publication through the ENTSO-E Transparency Platform.[16]

Key activitiesEdit

Pan-European Transmission Network plans and cost–benefit analysisEdit

The ten-year network development plan 2016 (TYNDP)[24] is drafted by ENTSO-E, in close cooperation with stakeholders, under scrutiny of ACER and is finally adopted by the European Commission. It is the only existing pan-European network development plan. It is the basis for the selection of EU projects of common interest (PCIs).[25] The list of PCIs is not fixed by ENTSO-E and is subject to a different process led by the European Commission and EU Member States.

The TYNDP is updated every two years. For inclusion in the TYNDP, each project, whether transmission or storage, has to go through a cost–benefit analysis. The benefit analysis methodology[22] is developed by ENTSO-E in consultation with stakeholders and adopted by the European Commission. It assesses projects against socio-economic and environmental criteria.[16]

Adequacy forecastsEdit

ENTSO-E publishes summer and winter generation outlooks,[26] well as a long-term system adequacy forecast, the Scenario Outlook & Adequacy Forecast (SO&AF).[27] The seasonal outlooks assess if there is enough generation to cover supply and highlight possibilities for neighbouring countries to contribute to the generation/demand balance in critical situations in a specific country. The SO&AF analyses system adequacy on the long-term and is connected to investment decisions.[16]

Network codesEdit

ENTSO-E's network codes are binding pan-European rules drafted by ENTSO-E in consultation with stakeholders, with guidance from ACER. Network codes are grouped in three areas:

  • connection codes connecting electricity generators, demand, and direct current lines to the transmission grids;
  • operational codes governing how the pan-European electricity systems are operated;
  • and market codes facilitating and harmonising electricity trading across European borders.[16][28]

The drafting and adoption process of network codes is defined by the Third Package. ACER develops a framework guideline setting the policy choices for each code. On this basis, the codes are drafted by ENTSO-E in consultation with stakeholders. After ACER's opinion and recommendation for adoption, each code is submitted to the European Commission for approval through the Comitology process, i.e., to be voted on by Member State representatives and thus to become EU law, directly binding and implemented across all Member States.[16]

Transparency Platform (TP)Edit

ENTSO-E's Central Information Transparency Platform[29] provides free access to fundamental data and information on pan-European wholesale energy generation, transmission, and consumption.[30]

Research, development, and innovation (RDI)Edit

ENTSO-E's R&D Roadmap[31] provides the ENTSO-E vision on grid projects to be carried out by TSOs to meet EU objectives. The roadmap is supported by the annual R&D Implementation Plan,[32] which combines both top-down and bottom-up approaches in meeting the requirements of the roadmap. ENTSO-E publishes annually a R&D Monitoring Report[33] that assesses the progress of TSO-related R&D work.[16]


ENTSO-E is an international non-profit association (AISBL) established according to Belgian law. ENTSO-E is financed by its members. The TSOs contribute to the budget according to the number of countries and the population served.[16]

The highest body of ENTSO-E is the Assembly, which is composed of representatives at CEO level of all the currently 43 members. The ENTSO-E Board is elected every two years from the overall membership and through the Assembly. It includes 12 representatives. The president, vice president, and committee chairs are invited to board meetings. The board coordinates the committees and LRG work and implements Assembly decisions.[16][34]

ENTSO-E has established four specialized committees[35] composed of managers from member TSOs. Each committee leads a number of regional groups and working groups.

At the same level as the four committees, the transversal Legal & Regulatory Group[36] advises all ENTSO-E bodies on legal and regulatory issues. In addition, expert groups on data, network codes implementation, and EU affairs provide specific expertise and work products to the association.[16]

ENTSO-E's Secretariat is based in Brussels. It is headed by the secretary-general and represents ENTSO-E to the European institutions, regulators, and stakeholders.

Organizational chartEdit

Position Name
President Hervé Laffaye
Vice President Zbyněk Boldiš
Chair of the Board Joachim Vanzetta
Vice Chair of the Board Liam Ryan
Secretary General Sonya Twohig
Head - Policy, Communication and Stakeholder Management Derek Lawler
Head - Digital & IT Section Nicolas Richet
Head - Corporate Services Bertrand Macabeo
General Counsel - Governance Affairs Florence Melchior
Head - Legal Ivan Taleski
Head - Market Zoltan Gyulay
Head - Innovation Norela Constantinescu
Head - System Development Edwin Haesen
Head - System Operations Bruno Gouverneur

Key figures (2022)Edit

  • 39 transmission system operators
  • 35 European countries
  • 532 million customers served
  • 312,693 kilometres (194,298 mi) of transmission lines
  • 3,174.2 TWh electricity transported
  • 423,586 GWh of electricity exchange between member TSOs
  • 1,023,721 MW net generation capacity connected to the grid[16]

See alsoEdit


  1. ^ ENTSO-E. "ENTSO-E official mandates". European Network of Transmission System Operators for Electricity. Brussels, Belgium. Retrieved 14 February 2022. Page not dated.
  2. ^ a b "TSOs for electricity are founding new association" (Press release). ENTSO-E. 1 July 2008. Archived from the original on 20 July 2011. Retrieved 17 January 2010.
  3. ^ "TSOs for electricity have founded a new association" (Press release). ENTSO-E. 19 December 2008. Archived from the original on 20 July 2011. Retrieved 17 January 2010.
  4. ^ "European TSOs established new organisation ENTSO-E" (Press release). Statnett. 19 December 2008. Archived from the original on 23 September 2009. Retrieved 17 January 2010.
  5. ^ "ENTSO-E, fully operational as of 1 July, welcomes the adoption of the EU's 3rd energy package" (Press release). ENTSO-E. 1 July 2009. Archived from the original on 20 July 2011. Retrieved 17 January 2010.
  6. ^ a b "Inquiry pursuant to Article 17 of Regulation (EC) No 1/2003". European Commission. 2005. Archived from the original on 23 January 2010. Retrieved 17 January 2010.
  7. ^ "Communication from the Commission – Inquiry pursuant to Article 17 of Regulation (EC) No 1/2003 into the European gas and electricity sectors". European Commission. 2007. Retrieved 12 March 2010.
  8. ^ "Energising Europe – a real market with secure supply (Third legislative package)". European Commission. Archived from the original on 8 April 2010. Retrieved 17 January 2010.
  9. ^ "Who Is ENTSO-E?". Retrieved 30 July 2015.
  10. ^ "Market legislation - Energy - European Commission". Retrieved 30 July 2015.
  11. ^ "ENTSO-E Member Companies". Archived from the original on 17 September 2022. Retrieved 8 January 2021.
  12. ^ 12 February 2021 EC Notice to Stakeholders on the Withdrawal of the UK and EU rules in the field of the Internal Energy Market.
  13. ^ "International Organizations". Archived from the original on 18 July 2022. Retrieved 2 November 2022.
  14. ^ "ENTSO-E welcomes Ukrenergo as Observer Member". Archived from the original on 17 October 2022. Retrieved 2 November 2022.
  15. ^ "New Observer Membership Agreement formalised with TEİAŞ". Archived from the original on 21 December 2022. Retrieved 24 January 2023.
  16. ^ a b c d e f g h i j k "ENTSO-E at a Glance". Retrieved 31 July 2015.
  17. ^ "REGULATION (EC) No 714/2009 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL". Retrieved 1 December 2016.
  18. ^ "COMMISSION REGULATION (EU) No 838/2010". Retrieved 1 December 2016.
  19. ^ "REGULATION (EU) No 347/2013 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL". Retrieved 1 December 2016.
  20. ^ "Energy topics - European Commission". Retrieved 1 December 2016.
  21. ^ "R&D Implementation Plan 2016–2018". Archived from the original on 10 July 2015. Retrieved 1 December 2016.
  22. ^ a b "Cost Benefit Analysis Methodology CBA 1.0 for TYNDP Project Assessment". Retrieved 1 December 2016.
  23. ^ European Commission (15 June 2013). "Commission Regulation (EU) No 543/2013 of 14 June 2013 on submission and publication of data in electricity markets and amending Annex I to Regulation (EC) No 714/2009 of the European Parliament and of the Council (text with EEA relevance)". Official Journal of the European Union. Vol. L 163. pp. 1–12. Retrieved 17 June 2021.
  24. ^ "Ten-Year Network Development Plan 2016". Retrieved 1 December 2016.
  25. ^ "Projects of common interest - European Commission". 8 November 2016. Retrieved 1 December 2016.
  26. ^[dead link]
  27. ^ "Scenario Outlook & Adequacy Forecasts". Retrieved 1 December 2016.
  28. ^ "Network Codes". Archived from the original on 7 January 2016. Retrieved 31 July 2015.
  29. ^
  30. ^ Hirth, Lion; Mühlenpfordt, Jonathan; Bulkeley, Marisa (1 September 2018). "The ENTSO‑E Transparency Platform: a review of Europe's most ambitious electricity data platform". Applied Energy. 225: 1054–1067. doi:10.1016/j.apenergy.2018.04.048. ISSN 0306-2619. CC‑BY‑4.0 license.  
  31. ^ "R&D Roadmap 2017–2026". Retrieved 1 December 2016.
  32. ^ "R&D Implementation Plan 2016–2018". Retrieved 1 December 2016.
  33. ^ "R&D Monitoring Report 2015". Retrieved 1 December 2016.
  34. ^ "ENTSO-E Governance". Retrieved 31 July 2015.
  35. ^ "ENTSO-E Working Committees". Retrieved 1 December 2016.
  36. ^ "Legal and Regulatory Group (LRG)". Retrieved 1 December 2016.

External linksEdit