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Terna plan ahead with the Adriatic Link

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Terna plan ahead with the Adriatic Link

The last piece was added in the first months of 2024, with the authorization of the Ministry of the Environment and Energy Security (Mase) for the construction of theAdriatic Linkthe underwater electrical connection that it will unite the Marche and Abruzzo for which Ternathe company that manages the national electricity transmission network, will invest around 1.3 billion euros.

The work, included among the interventions of Pniec (Integrated National Energy and Climate Plan) and recognized as strategic for the country system also by He is nurturing (Regulatory Authority), will consist of two submarine cables of approximately 210 km, laid at a maximum depth of 100 metres, and two terrestrial cables of 40 km. The conversion stations will be built near the existing electricity stations of Cepagatti, in Abruzzo, and Fano, in the Marche. The direct current connection (HVDC, High voltage direct current) will make it possible to increase the exchange capacity between the central-south and central-northern areas of the country by approximately 1,000 MW, transporting the energy produced by the wind and photovoltaic plants of the South towards the consumption centers of Northern Italy.

“The infrastructure will increase the security and resilience of the national electricity transmission network and will contribute to achieving the objectives set by the Pniec, confirming Italy’s role as a European and Mediterranean energy hub,” he declared Giuseppina Di Foggia, CEO and CEO of Terna. But Adriatic Link is only the latest work, in chronological order, with which the company is redesigning the national electricity grid, which will exploit direct current energy transmission (HVDC) technology to achieve the objectives of energy transition and security .

More than 30 infrastructure projects have been included in Terna’s ten-year development plan, which provide for over 21 billion euros of investments in the next 10 years, 17% more than the previous plan. Calculating the entire life cycle of the works included in the plan, beyond the ten-year horizon, the total amount of investments will exceed 30 billion euros. Last year, 23 works were authorized, with a value exceeding 3 billion. The figure is up 20% on 2022, when the overall value of authorized interventions stood at over 2.5 billion, and tripled compared to 2021.

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A result, that of Terna, obtained above all thanks to the green light from Mase for the construction of the ramo ovest del Tyrrhenian Linkthe section of the underwater power line that will connect Sicily and Sardinia, worth over 1.8 billion euros. The other branch of the work, the one that it will unite Sicily and Campaniahad been authorized in 2022. The direct current connection of approximately 970 km underwater and 1,000 MW of power is a strategic work for the Italian electricity system, crucial for achieving the energy transition objectives set by the Pniec.

Another key Terna work, authorized in 2023, is the project called Sa.Co.I 3: the 200 kV direct current submarine cable which will connect Sardinia, Corsica and Tuscany, with a total transport capacity of up to 400 MW. The infrastructure is worth approximately one billion euros of investments and will contribute to strengthening the country’s role as an energy hub for Europe and the Mediterranean area.

Furthermore, again in 2023, two interventions were authorized, both worth approximately 50 million euros, which are part of Terna’s activity plan to increase the safety and efficiency of the high and very high voltage electricity grid in the areas affected by the Milan–Cortina 2026 Olympic and Paralympic Games. Specifically, this concerns the 19 km underground cable power line in Val di Fassa (Trento) “Moena-Campitello” and the 22 km connection, always in underground cable, between Vandoies and Brunico (in the province of Bolzano). Both interventions will increase the meshing and resilience of the energy transmission system in areas affected, in recent years, by frequent extreme weather events. The construction sites of the two infrastructures have already started, the goal is to complete them by the end of 2025.

Overall, the works planned by Terna also have important environmental, social and economic benefits: over 700 km of the new authorized infrastructure will be underwater or underground, with positive impacts for the landscape and local communities. Furthermore, with the implementation of the 23 interventions authorized in 2023, over 60 km of existing overhead lines will be demolished and more than 250 pylons removed, thus freeing up over 500 hectares of territory.

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