Capri - Torre Annunziata
OperationalIsland LinkIT160 MW150 kV31 km2017
Basic information
7 fieldsAlso Known As
Capri-Torre Annunziata · Capri–Torre Annunziata · Capri-Torre Annunziata (150 kV) · Collegamento elettrico Capri-Torre Annunziata · Elettrodotto Capri-Torre Annunziata · Capri-Torre Annunziata HVAC 150 kV · Progetto Insula - Capri-Torre Annunziata
Status
operational
Capacity
160 MW
Owners
Project Company
Type
island link
Website
Supply Chain (1)
Project Timeline (9)
14 Oct 2020Financial Other
On 14 October 2020, at the inauguration of the new Capri–mainland power connection, Terna announced that it had invested a total of €150 million in the project linking Capri with Sorrento and Torre Annunziata via two alternating current undersea cables and associated substation works, delivering environmental benefits and improved security of supply for the island.
Sept 2020Onss Commissioned
At the end of September 2020, the second 150 kV AC undersea cable between Capri and Sorrento and the new Sorrento substation entered operation, closing the Capri–Torre Annunziata–Sorrento electricity ring in which the Capri–Torre Annunziata link forms the first section; this bidirectional 160 MW connection enabled Capri to be fully integrated into the national grid and supported the decommissioning of the island’s diesel power plant with substantial CO2 and cost savings.
2017Commercial Operations Full Power
The Capri–Torre Annunziata 150 kV HVAC submarine cable and associated Capri substation entered operation in 2017, becoming the first undersea power link to Capri and the initial section of Terna’s 160 MW Capri–mainland electricity ring. This 31 km connection between Capri and Torre Annunziata, developed under Terna’s Insula project, was completed and went into service that year, significantly improving the island’s security and reliability of supply ahead of the later Capri–Sorrento link.
14 Nov 2014Cable Installation Complete
The installation of the 30 km submarine cable for the Capri–Torre Annunziata interconnector was completed after three days of offshore works, following the start of full laying operations on 9 November 2014. Cable-laying vessel "Giulio Verne," working for Prysmian on behalf of Terna Rete Italia, finished positioning the high-voltage cable on the seabed between Rovigliano (Torre Annunziata) and Marina di Caterola (Capri), reaching a maximum depth of 119 m and marking one of the most important phases in constructing the new electrical connection and station for Capri.
8 Nov 2014Cable Installation Start
Cable installation for the Capri–Torre Annunziata high-voltage interconnector began on 9 November 2014, when Prysmian, using the cable-laying vessel "Giulio Verne", started full-rate laying of the approximately 30 km submarine cable between Rovigliano in Torre Annunziata and Marina di Caterola in Capri as part of Terna’s project to connect the island to the Italian national grid.
24 Sept 2013Cable Supplier Selected
On 24 September 2013, Terna Rete Italia S.p.A., part of Italian TSO Terna S.p.A., awarded Prysmian Group a contract worth about €70 million to supply and install the 150 kV HVAC submarine and land power cable system linking Capri with Torre Annunziata on the mainland. The turnkey scope covers approximately 30 km of submarine cable and 1 km of land cable, related network components and specialist civil works, with cable manufacture at Prysmian’s Arco Felice plant and marine laying by the vessel Giulio Verne, as part of Terna’s wider ‘Progetto Insula’ to connect Italian islands to the mainland.
2012Early Development Other
In 2012 Terna took the first step toward the Capri–Torre Annunziata submarine power link by launching plans for the initial undersea cable between Torre Annunziata and Capri, associated with construction of a new substation on Capri that would later go into operation in 2017 as part of the island’s definitive connection to the Italian mainland.
22 Nov 2012Planning Consent Awarded
Authority: Mimit · Licence: Authorisation decree for new 150 kV submarine cable "Capri - CP Torre Centrale (Annunziata)" and new 150 kV Capri substation
On 22 November 2012, Italian transmission operator Terna S.p.A. received an authorisation decree from Mimit for the project to strengthen the power supply to the Campanian islands via a new predominantly submarine 150 kV cable "Capri - CP Torre Centrale (Annunziata)" and a new 150 kV substation on Capri.
Date TBDOnshore Construction Start
Terna opened the construction site and began work on the Capri–Torre Annunziata 150 kV AC power link, a 31 km line (30 km submarine and 1 km terrestrial) including a new low‑impact substation at Capri’s Gasto Ecological Island, marking the start of onshore civil works for the project under the Insula programme.