Terna Group
transmission system operator based in Rome
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 Peru and USA (2025). With 75,905 kilometres (47,165 mi) of power lines or around 98% of the Italian high-voltage power transmission grid, Terna is the leading independent grid operator in Europe and the sixth largest electricity transmission grid operator in the world based on the size of its electrical grid. Terna is listed on the Borsa Italiana and is a constituent of the FTSE MIB index.
History
On 31 May 1999, Terna was established within the Enel Group, by way of implementation of Italian Legislative Decree No. 79/99 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 November 2005, Terna acquired a business unit from GRTN, as defined by the Prime Ministerial Decree of 11 May 2004. Cassa Depositi e Prestiti became the relative majority shareholder.
In 2010 Terna joined Desertec, 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.
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This entry incorporates text from “Terna Group” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.