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TERNA - Rete Elettrica Nazionale S.p.A. is a major grid operator for electricity transmission. The company is responsible in Italy for electricity transmission activities along the HV grid and is also the main owner of the National Transmission Grid with more than 62 thousand km of electricity lines.

Terna is also responsible for  dispatching electricity throughout the national territory and for safely managing, 365 days a year, 24 hours a day, the balance between the electricity demand and offer. The Company is also responsible for managing the Grid planning, development and maintenance, fully respecting the environment and providing technological expertise and know-how to improve its efficiency. Terna is listed in the Italian Stock Exchange since 2004 (ticker Bloomberg: TRN IM; ticker Thomson Reuters: TRN.MI). Presently, its major shareholder is Cassa Depositi e Prestiti with 29.95% of shares. 65% of its share capital is held by Italian shareholders, while 35% is held by foreign investors (updated as of April 30, 2010).

In compliance with the best practices followed by the major listed companies, Terna adopted a Code of Ethics and yearly publishes its “Sustainability Report”. This publication illustrates how the Company’s responsibility towards the social and environmental impacts of its activities affects management aspects. Moreover, it shows how this is applied to plans and initiatives aimed at creating and maintaining trust with its stakeholders.


Terna was founded in 1999 within the liberalization process of the electricity sector that began pursuant to Legislative Decree n.79/99 (so-called Bersani Decree), followed by Enel’s sale of its national electricity transmission grid.

The company’s present structure is the result of the acquisition made in 2005 of the company branch of the National Transmission Grid Operator (GRTN) relative to electricity transmission and dispatching and to the national transmission grid planning and development.

Pursuing the objective of unifying the grid and in compliance with the provisions of the energy sector restructuring, in 2006 the Terna Group acquired Edison Rete SpA and AEM Trasmissione SpA. In 2007, AEM Trasporto Energia Torino. In 2008, two electricity stations were acquired from Seledison and two segments of  Enipower’s NTG, the power lines in Brindisi and in Ravenna. Lastly, in 2009, the Terna Group acquired from Enel Distribuzione 18,600 km of HV electricity lines becoming the owner and operator of more than 62 thousand km of HV electricity lines.

For further information, visit the company’s website.

Last update:  May 13 2010 - 14:17

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