Terna is the largest independent transmission system operator (TSO) in Europe and the sixth largest in the world in terms of kilometres of lines managed.

The Company’s headquarters is in Rome and it is the owner of the Italian National Transmission Grid (NTG), with more than 57,400 kilometres of high-voltage lines (more than 63,400 km of three-phase conductors), 468 transformation stations, and 22 lines interconnecting with foreign grids (data at December 31, 2012).

In Italy, Terna acts as TSO with a monopoly under a government concession. It is responsible for transmitting and dispatching electricity along the high-voltage and very-high-voltage grid throughout the whole of Italy. Terna is also responsible for planning, constructing and maintaining the grid.

The fundamental elements of Terna's mission are:

  • to manage electricity transmission in Italy, guaranteeing its security, quality and affordability over time;
  • to ensure equal conditions of access for all grid users;
  • to develop market activities and new business opportunities with the experience and technical skills gained in the management of complex systems;
  • to create value for its shareholders with a strong commitment to professional best practices and with a responsible approach to the community, respecting the environment in which it operates.