ITALIAN NATIONAL GRID Home About Us Our business Italian national grid Share As Italy’s primary transmission and dispatching operator, we invest in skills, technology and innovation to optimise the management of grid planning, development and maintenance activities (Transmission Operator) and to ensure the stability, security and quality of the electricity service (System Operator) The supply chain of the Italian electricity system is structured in four segments: electricity production, transmission, distribution and sales. Our Group’s main regulated activities are the transmission and dispatching of electricity in Italy. Terna, therefore, occupies the fundamental segment of transmission with a role of TSO (Transmission System Operator) and ISO (Independent System Operator), in a monopoly regime and on the basis of a government concession. The national electricity system supply chain Electric flows Data flow ELECTRICITY TRANSMISSION The process of the regulated activity of electricity transmission, or the activity of the Transmission Operator (TO), breaks down into three areas: planning projects for the development of the Italian National Electricity Grid, construction activities and maintenance of power infrastructure. 01 Planning of works 02 Implementation of development projects 03 Maintenance of infrastructure APPROACH TO SUSTAINABILITY Transparency Dialogue with stakeholder Awareness raising We are responsible for maintaining high-voltage power lines through 3 Territorial Departments, divided into 8 Transmission Operating Areas (TOAs). The 3 departments carry out ordinary and extraordinary maintenance activities, including the renewal of existing assets in order to improve system reliability. In addition, we are responsible for the planning and development of the National Transmission Grid, on the basis of a ten-year plan approved every two years by the Italian Ministry of Economic Development: The Development Plan. Investments for more than € 18 BILLION Additional grid-connectable RES power by 2030 estimated at 40 GIGAWATTS Decommissioning of obsolete infrastructure totalling 4,600 KM 2,000 MILLION KWH a year saved by reducing energy losses -5.6 MILLION TONS/YEAR of CO2 emitted DISPATCHING As System Operator (SO), Terna provides the dispatching service for the Italian electricity system. In other words, we must guarantee that the energy demanded by consumers (households and businesses) is always in balance with the energy produced. The high degree of complexity of this task gives a central coordinator the power of control over a large number of players, as regards both production and demand, and in the last few years, also production from “non-programmable” renewable sources. 01 Planning for unavailability 02 Forecasting national demand for electricity 03 Comparing demand for consistency with planned production 04 Procurement of resources for the Dispatching Services Market (DSM) 05 Monitoring power transported on Italian National Electricity Grid (NTG) Dispatching includes: planning grid unavailability and production plants across different time horizons; forecasting national electricity requirements; comparing the equilibrium between power demand and the production programme, determined as a result of the free energy market (the Italian Power Exchange and contracts outside the Exchange); acquiring resources for dispatching; checking power transits for all of the lines in the grid. Real-time control of the system is provided by our National Control Centre, the nerve centre of the Italian national electricity system, which coordinates the other centres around the country, guarantees monitoring of the system and performs dispatching activities, intervening with indications to producers and remote conduction centres so as to modulate the supply and structure of the grid as required. In order to prevent the risk of extensive blackouts, in emergency situations, it can also intervene to reduce demand. Did you know that... The transition towards a system of "distributed production" of renewable sources is rapidly modifying the market with the rise of a "prosumer" model (producer and consumer together), gradually replacing the traditional "consumer", and with the consequent exponential growth of the active resources connected to the grid. In this context, it is increasingly challenging to maintain the complete observability of resources—as regards both inputs and withdrawals of energy—which has an impact on demand forecasts and, consequently, on the correct management of generation resources. For this, we use highly evolved forecasting and planning tools, procurement of new flexibility resources and of innovative data management & analytics solutions. To get an idea of the electricity flows in Italy and how exchanges happen between the different areas of the country, here is a map of the exchanges between internal market zones: How we are paid Our transmission and dispatching services are compensated on the basis of a tariff system established by the Regulatory Authority for Energy, Networks and Environment (ARERA). ARERA’s Resolutions constitute the basis for compensating transmission (Resolution 654/15) and dispatching services (Resolution 351/07 as amended and supplemented). Did you know that... At 5.6%, Terna’s compensation is the lowest in the Italian electricity sector and is lower than the European average (6.4%). We are compensated based on investments made and only when these investments are actually implemented. Based on the data published by ARERA, it is possible to estimate that the cost of the electricity transmission service on a typical household’s electricity bill is less than 5%. Find out more about the main types of costs recognised. TERNA IS THE FIRST GRID OPERATOR FOR ELECTRICITY TRANSMISSION IN EUROPE. WE PROMOTE THE ENERGY TRANSITION AND SUSTAINABLE DEVELOPMENT BY FOCUSING ON PEOPLE AND INNOVATION. We work every day to build an atmosphere of dialogue and trust in local areas, to which we bring a vital asset for everyone’s economic and social lives: electricity. > FIND OUT MORE Useful links CALENDAR GENERAL ARCHIVE CERT REAL ESTATE ASSETS ACCESSIBILITY PRIVACY COOKIE DECLARATION LEGAL NOTICE INSERT CV Portals PURCHASES SUPPLIERS QUALIFICATION GAUDI GSTAT ENERGY DISTRIBUTORS MY TERNA TITOLARI RTN OUR SITES: OPEN AND TRANSPARENT SETTLEMENT CERTIFICATION WHISTLEBLOWING TERNA PLUS TERNA S.p.A. - Capitale sociale € 442.198.240 interamente versato - Sede Legale in Italia, Viale Egidio Galbani, 70 - 00156 Roma - Tel +39 06 83138111 Registro delle Imprese di Roma - Codice fiscale e Partita IVA 05779661007 - R.E.A. di Roma 922416