Our electricity management, development, transmission and dispatching activities on the HV grid across the Italian territory.
Terna is the Operator and principal owner of the High voltage National Electricity Transmission Grid.
Terna is the company responsible in Italy for the transmission and dispatching of electricity throughout the territory on the high voltage grid and for safely managing 365 days a year, 24 hours a day, the balance between
electricity demand and supply.
Terna is responsible for planning and developing the National Transmission Grid (NTG). It is in charge of maintaining and developing the NTG fully respecting the environment while also joining expertise and technology for improving efficiency and creating value for shareholders and the community in which it operates.
The Italian electricity system is divided into four segments that form the production process: production, transmission, distribution and sale. Terna’s activities involve the electricity transmission on the high voltage grid.
In greater details:
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Managing the electricity system: Terna guarantees the balance between energy demand and supply. The safe management of the energy flow of the national electricity system is carried out by the National Control Center and by the Territorial Centers. Terna guarantees the maximum efficiency of its infrastructures and their top-level maintenance. Through remote control centers, Terna manages its plants and monitors their operation and activity.
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Engineering and plant management: Terna is responsible for the maximum efficiency of its infrastructures and for their top-level maintenance being strongly committed toward technological innovation and also thanks to a highly specialized operational structure that is present throughout the territory.
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Grid development: Terna resolves and implements development measures for the National Transmission Grid on the basis of a ten year plan approved each year by the Ministry for Economic Development (MSE): the Electricity Grid Development Plan. By completing all the projects, mainly priority work in Italy and new interconnection capacities with other countries, nearly 4,600 km of new electricity lines are expected to be built as well as 111 new transforming stations; overall, the Grid’s transformation power will increase by 22,458 MegaVoltAmpers (MVA). In addition to building new strategic infrastructures for the country, the activity relative to "10 Projects for sustainable development" is underway, the largest electricity grid upgrading project ever implemented in Italy. Thanks to this project, land use will be reduced by removing over 1,200 km of old lines.
Terna’s Remuneration
For its activities, Terna is remunerated on the basis of a tariff system established by the Authority for Electricity and Gas for the two important regulated activities that it carries out in Italy: electricity transmission and dispatching, both in compliance with the concession granted by the Ministry for Economic Development. The first is remunerated on the basis of the terms established by the Authority with resolution No. 199/11, and the second with resolution No. 204/11: on the whole Terna accounts for less than 3% on the total of the electricity bill.