The Adriatic Backbone (Foggia–Forlì) is a planned HVDC transmission backbone promoted by the Italian TSO Terna to strengthen the Adriatic north–south corridor and increase intra‑Italy exchange and transit capacity. The project is presented within Terna’s Hypergrid/2025–2034 Development Plan as a ...
On 17 July 2025, Terna presented the 2025–2034 National Electricity Grid Development Plan to Apulia’s regional authorities in Bari, highlighting the Adriatic Backbone as one of the region’s major planned projects: an HVDC direct current line connecting Foggia and Forlì to strengthen the Adriatic energy transit corridor, substantially increase exchange capacity, and enable greater integration of expected renewable capacity while improving grid stability and resilience.
Terna’s 2025–2034 National Electricity Grid Development Plan formally identifies the Adriatic Backbone (Foggia–Forlì) HVDC line as a strategic Hypergrid project to be developed by 2034, with ongoing advanced studies and confirmation of its corridor. The plan describes a single up-to-±525 kV direct-current connection between Foggia and Forlì, intended to strengthen the Adriatic north–south corridor, substantially increase inter-zonal exchange capacity and support renewable integration within Italy.
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Adriatic Backbone, Dorsale Adriatica, HVDC Foggia-Villanova-Fano-Forlì, HVDC Foggia-Forlì
On 10 March 2025, Terna published its 2025 Development Plan, which identifies the Adriatic Backbone (code 447-P/HG-5) as a planned single ±525 kV HVDC connection between Foggia and Forlì, to be completed by 2034 as part of the national Hypergrid architecture, and notes that advanced studies and corridor confirmation for this backbone are continuing in preparation for detailed design.
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