Over 18 billion euros of investments in the next 10 years, i25% more than the previous ten-year plan, to enable the energy transition, favoring it development and integration of renewable sources, contributing significantly to the achievement of the objectives of the Green Deal and giving an important boost to the country’s economic recovery. This is the distinctive feature of Terna’s new 2021 development plan for the national electricity transmission grid.
To cope with the profound transformation taking place in the electricity sector, Terna has therefore decided to give “an important acceleration of investments” envisaged in the ten-year plan: the increase in demand and production from renewables, which according to the objectives defined in the current Integrated National Plan for Energy and Climate (Pniec) will have to reaching a share of 55% in 2030 will require a consistent adjustment of the national electricity grid.
In particular, Terna’s investments in transmission grids will serve a increase the mesh, to reinforce the dorsals between South (where the production of electricity from renewable sources will be greater) e North (where the demand for electricity is most sustained), a strengthening the connections between the islands and the mainland and within the islands, developing infrastructures in the weakest areas.
In the development plan, the main lines of action go from strengthening of trade between market areas for greater integration of renewable sources; resolution of critical issues and greater electrification of metropolitan areas; synergies with other systems (gas, railways and telecommunications) to integrate the networks and determine a lower impact on the territory; strengthening of interconnections with foreign countries to increase the exchange capacity with neighboring countries. Projects to be completed in the early years of the 2021 development plan include: the 380 kV ‘Colunga-Calenzano’ power line, which runs for 84 km between the provinces of Bologna and Florence.
The infrastructure, for which it is intended an investment of 170 million euros will ensure a significant increase in the exchange capacity between North and Center-North, strengthening the mesh of the area’s electricity grid. The 380 kV ‘Chiaramonte Gulfi-Ciminna’ line, 170 km long through the provinces of Agrigento, Caltanissetta, Catania, Enna, Palermo and Ragusa, will be the first very high voltage connection in the western part of Sicily and, thanks to an investment of approximately 300 million euros, will make it possible to significantly improve the quality of the regional network. The 380 kV ‘Paterno’-Pantano-Priolo’ power line, along 60 km between Catania and Syracuse, will make it possible to increase the safety and flexibility of the network and will lead to the decommissioning of over 150 km of old overhead lines. The work involves an investment of approximately 70 million euros.