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We guarantee a service in the national public’s interest: the transmission and dispatching of electricity in Italy, by

  • operating the high-voltage grid
  • maintaining infrastructure
  • planning grid development
  • constructing the grid.

Unlike other energy sources, electricity is difficult to store. We therefore need to ensure a constant balance between supply and demand.

Economic benefits for the community

Our services contribute to Italy's growth. The development of the electricity grid is especially significant, for the following reasons:

  • More interconnections with neighbouring connections mean that we can import energy at more competitive prices than that of national production, can have added power reserves available and can guarantee greater competition on the energy market.
  • Reducing congestion on the grid improves the utilisation of production sources to meet requirements and makes it possible to use the more competitive plants, creating a positive impact on competition in the generation sector and on end prices.

Our 2018-2022 strategic Plan projects investments of around € 5.3 billion over the next five years. In 2017, we invested € 958 million in regulated activities.

All our investments in development are subject to preliminary verification. To maximise the cost/benefit ratio, we compare the estimated costs for implementation with the expected benefits on the reduction of the system's overall costs. This ratio should always be above 1.5. Every Euro invested by Terna on average generates a multiple of savings for grid users, which impacts on the end consumer.

Did you know
Based on data published by ARERA, it is possible to estimate that, for a typical household, the cost of electricity transmission service on the electricity bill is equal to around 3.5%. According to European Commission data, in both the household and industrial segments, the so-called “network costs” incurred by Italian consumers are below the European average.

Security of the electricity system

The Security Plan, prepared on an annual basis by Terna and approved by the Ministry of Economic Development, is a four-year programme based on initiatives to prevent disruptions on the electricity grid, and if these should occur, to mitigate potential consequences.

The Security Plan takes into account eight different areas, including scheduling, control, regulation and protection, restarting and monitoring of the electricity system, in addition to an area for the secure and optimal management of renewable sources.

Did you know
In 2017, investment carried out for projects provided for the Electricity System Security Plan totalled approximately € 63 million.

Dialogue with the community

Local communities are our primary stakeholders. We aim to create and maintain a solid and cooperative relationship throughout the nation, by sharing the grid's development requirements with local institutions, listening to stakeholders’ opinions and looking for shared solutions regarding the positioning of new infrastructures and the reorganisation of existing ones.

By operating in this manner, we build a collaborative network, and thus develop the grid together. In so doing, our enterprise is more sustainable, focusing not only on the quality of the service we provide, but also on the impact on the environment and natural landscape. During 2017, Terna held a total of 303 meetings with local authorities, involving around 260 bodies.

To learn more about our dialogue with local bodies, click here

“Terna meets” the public

We have a direct dialogue with residents living in the areas where the main development work on the National Transmission Grid is taking place. In 2017, Terna held 13 “Terna incontra” events (in Auronzo di Cadore, Cortina D’Ampezzo, Vaiano, Formazza, Domodossola, Comignago, Avigliana, Val di Susa and Chiomonte, Volpago, and Scorzè), attended by around 343 local residents.

To learn more, click here.