Terna Group

Terna S.p.A. is a transmission system operator (TSO) based in Rome, Italy. It operates through Terna Rete Italia, that manages the Italian transmission grid and Terna Plus which is in charge of new business opportunities and non-traditional activities in Italy and abroad.[3] With 72,900 kilometres (45,300 mi)[1] of power lines or around 98% of the Italian high-voltage power transmission grid, Terna is the first independent electricity transmission grid operator in Europe and the sixth in the world based on the size of its electrical grid.[4] Terna is listed on the Borsa Italiana[5] and is a constituent of the FTSE MIB index.[6]

Terna S.p.A.
Società per azioni
Traded asBITTRN
HeadquartersRome, Italy
Key people
ServicesTransmission system operator
Revenue€ 2,248 million (2017)[1]
€ 1,077.4 million (2017)[1]
€ 688.3 million (2017)[1]
Total assets€ 16,916.8 million (2017)[1]
Total equity€ 3,803.3 million (2017)[1]
Number of employees
3,897 (2017)[1]
SubsidiariesTerna Rete Italia S.p.A. (100%), Rete S.r.l. (100%), Terna Crna Gora d.o.o. (100%)[2]


On 31 May 1999, Terna was established within the Enel Group, by way of implementation of Italian Legislative Decree No. 79/99[7] which within the context of the process for the deregulation of the Italian electricity sector, sanctioned the separation between ownership and management of the national transmission grid.

On 23 June 2004, following the Prime Minister's Decree issued on 11 May of the same year, Terna was put on sale with an IPO on Borsa Italiana.

In 2010 Terna joined Desertec,[8] a project aimed at producing and transmitting renewable energy in the Middle East and North Africa (MENA) to meet local needs and be assigned in part to the European interconnected grid.

In 2011, Terna Group adopted a new organizational structure. Through Terna Rete Italia[9] safely manages the Italian electricity system with more than 63,500 kilometers of high voltage lines. Through Terna Plus manages new business opportunities and non-traditional activities, in Italy and abroad.

2011 was the 7th consecutive year of growth for the Group. A dividend of €21 was paid per share. The 2011 results were submitted by the CEO Flavio Cattaneo during the Terna Board of Administration meeting held to approve the Strategic Plan 2012-2016.

In 2012 Terna consolidated Revenues stood at 1,806 million euros, +10.4% compared to 2011, mainly due to the Grid Transmission Fee and to the results from Non Traditional Activities carried out by the Group.[10]

On 31 January 2012 Terna presented the Development Plan of the National Electricity Transmission Grid[11] for the decade 2012-2021. The plan is drafted and updated every year and, in 2012, it included investments for over 7 billion euro aimed at increasing efficiency for the electricity system, including the reduction of energy losses and the reduction of CO2 emissions.

In 2013 Terna consolidated Revenues stood at 1,896 million euros, with an increase of 90.5 million euros (+5%) compared to 2012. Ebitda stood at 1,281 million euros (+6,5%), Group Net income at 514 million euro (+10,8%).[12]


Informazioni su un traliccio elettrico di Terna
Information panel on a Terna high voltage line

Terna is responsible for national electricity transmission management and development in Italy. Terna's assets include:

  • 72,900 km of lines [1]
  • 871 transformation and switching stations [1]
  • 1 National Control center (CNC)
  • 8 Distribution Centers (CR)
  • 3 energy conduction Centers (CTI)
  • 25 lines of interconnections with other countries (CTI) [1]
  • SA.PE.I. the longest underwater cable in the world (435 km), with a capacity of 1000 MW

To safeguard its assets, Terna has created an organization capable of protecting the company’s physical and technological infrastructures, also through the prevention and management of episodes of corporate fraud. In this framework, in order to guarantee the maximum safeguarding of said infrastructures and investments, it has signed memoranda of understanding, first of its kind and type with the Ministry of the Interior, Carabinieri and Guardia di Finanza.

In 2010 the company invested €1.06 billion that financed the construction of 1000 km of new electrical lines and 48 new stations. Terna's transmission lines carried 326.16 billion kWh in 2010, of which:[13]

  • 286.53 billion generated by power plants in Italy
  • 45.76 billion imported
  • 1.81 billion exported
  • 4.31 billion for pumping stations

In turn, 286.53 billion kWh were generated by:

Board of directors

Board members:[14]

  • Catia Bastioli - Chairwoman
  • Luigi Ferraris - Chief Executive Officer
  • Fabio Corsico
  • Luca Dal Fabbro
  • Paola Giannotti
  • Yunpeng He
  • Gabriella Porcelli
  • Stefano Saglia
  • Elena Vasco


Terna has been listed in the Italian Stock Exchange since 2004. Its major shareholder was Cassa Depositi e Prestiti, with 29.85% of shares, which in 2014 transferred to a sub-holding companies CDP Reti, a joint venture of CDP and State Grid Corporation of China. The remaining nearly 70% is held by other institutional and retail investors.[15] Among the principal shareholders of the company: Romano Minozzi with 5.6%, Blackrock Inc. with 2.4% and Assicurazioni Generali with 2.0%.


According to the Edison Electric Institute, Terna is the best European company among utilities by total return of shares in 2010–2012.[16] In these three years Terna's return stood at 24%, compared to average returns in the sector (DJ Stoxx-10%, Ftse Mib-21%). In 2010 Terna did receive the same recognition for the 2007-2009, as Terna's share return stood at +40%, achieving a net overperfomance (nearly 55%) compared to the European sector that registered -15%.


  1. ^ a b c d e f g h i j "Annual Report 2017" (PDF). Retrieved 25 June 2018.
  2. ^ "Annual Report 2017" (PDF).
  3. ^ Terna - The Wall Street Journal
  4. ^ Terna official website Archived 2012-05-18 at the Wayback Machine
  5. ^ Terna - Borsa Italiana
  6. ^ TEXT-S&P affirms Terna SpA ratings - Reuters
  7. ^ Oecd - Economic survey of Italy 2007: Enhancing competition and productivity in services
  8. ^ Desertec: Terna becomes shareholder of Dii Archived 2013-01-21 at Archive.today
  9. ^ Terna Rete Italia Official Website
  10. ^ "Terna's Board of Directors: 2012 results approved". Retrieved 14 January 2016.
  11. ^ "Grid Development Plan Summary". Retrieved 14 January 2016.
  12. ^ Terna’s Board of directors: 2013 results approved
  13. ^ "Terna Annual Report 2010" (PDF). Retrieved 14 January 2016.
  14. ^ "Annual report 2017" (PDF). Retrieved 24 May 2018.
  15. ^ "Shareholding structure and shareholders' agreements". Retrieved 14 January 2016.
  16. ^ Terna the best European utility for shareholder return

External links


Independent Power Transmission Operator S.A. (IPTO or ADMIE from "ΑΔΜΗΕ" - Ανεξάρτητος Διαχειριστής Μεταφοράς Ηλεκτρικής Ενέργειας A.E. in Greek) is the Transmission System Operator for the Hellenic Electricity Transmission System. The mission of the Company is the operation, control, maintenance and development of the national transmission system of Greece to ensure the reliable and efficient electricity supply, as well as the operation of the electricity market following the principles of transparency and equality.

Since February 2012 it is independent in operation and management, retaining the necessary independence required for compliance with 2009/72/EC EU Directive.

Till the end of June 2017 it was a wholly owned subsidiary of Public Power Corporation of Greece (PPC S.A.).

As of June 20, 2017 ADMIE follows the model of proprietary separated Administrator (Ownership Unbundling) and is fully harmonized with the Directive 2009/72/EC.

The current shareholder structure of ADMIE is as follows:



24% State Grid Europe Limited.

Until 31 January 2012, ADMIE was a joint company with the Hellenic Electricity Market Operator S.A. (now called LAGIE S.A. from "ΛΑΓΗΕ" - Λειτουργός Αγοράς Ηλεκτρικής Ενέργειας A.E. in Greek) under the name "Hellenic Transmission System Operator S.A." (HTSO or DESMIE from "ΔΕΣΜΗΕ" - Διαχειριστής Ελληνικού Συστήματος Μεταφοράς Ηλεκτρικής Ενέργειας Α.Ε. in Greek).ADMIE's compliance with the requirements applicable to the model of the Independent Transmission Operator was certified by the Regulatory Authority for Energy (RAE) in December 2012.

As of 30 June 2012, the Hellenic Electricity Transmission System comprised 11.303 km of transmission lines and 291 Substations with a total installed capacity of 50.749 MVA :

2632 km of 400 kV lines (overhead and underground)

267 km of D.C. 400 kV lines (overhead and submarine)

8349 km of 150 kV lines (overhead, submarine and underground)

55 km of 66 kV lines (overhead, submarine and underground)ADMIE S.A. is a member of ENTSO-E (the European Network of Transmission System Operators for Electricity).

Cassa di Risparmi di Livorno

Cassa di Risparmi di Livorno is a former Italian regional bank and charity organization, based in Livorno, Tuscany. In 1992 the organization was split into a limited company (società per azioni) and a banking foundation Fondazione Cassa di Risparmi di Livorno (currently Fondazione Livorno).

The S.p.A. was sold to Banca Popolare di Lodi, which was completed absorbed into the saving bank of Lucca, Pisa & Livorno in 2006 (along with fellow saving bank in Pisa). Livorno Foundation, found 1992, still operates as a non-profit organization.

Crnogorski Elektroprenosni Sistem

Crnogorski Elektroprenosni Sistem AD (MNSE: PREN) (CGES; former name Prenos AD; meaning: Montenegrin Electrical Transmission System) is an electric power transmission system operator located in Podgorica, Montenegro. It is a member of European Network of Transmission System Operators for Electricity. AD stands for Akcionersko Drustvo, or Joint Stock Company.

In 2009, the company broke away from EPCG and partly privatized, with 43.7% stake in the company acquired by the Italian utility company A2A. 22% stake is owned by Italian electricity transmission company Terna.CGES and Terna are planning to build a 450-kilometre (280 mi) 1,000 MW submarine cable between Tivat and Pescara. The cable to be operational by 2015.

The European Bank for Reconstruction and Development is preparing a €65 million syndicated loan for the company. The loan would be used for the construction of a new substation at Lastva, and a new line from Lastva to Pljevlja to be connected to the Italy–Montenegro interconnector.

Electricity distribution companies by country

This is a list of Electricity distribution companies by country.

Index of Italy-related articles

The following is an alphabetical list of articles related to Italy.

List of electric power companies in Greece

This is a list of every electric power company producing electrical energy in Greece as of March 2007.

FTSE MIB companies of Italy


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