Prysmian partners with DEME Group for significant U.S. submarine cable contract

Prysmian and DEME Win Landmark CVOW BoP Deal

Prysmian Group has partnered with DEME Group to secure a major U.S. submarine cable contract from Dominion Energy Virginia for the Coastal Virginia Offshore Wind (CVOW) project. This award marks a major step for the U.S. offshore wind sector and the first time a U.S. project uses a full Balance of Plant (BoP) contract structure.

Coastal Virginia Offshore Wind: Largest U.S. Project

The CVOW project will deliver 2.6 GW of offshore wind capacity using 176 turbines, each standing more than 800 feet tall off the coast of Virginia. Prysmian will supply approximately 880 km of submarine power cables under the BoP scope, while DEME will deliver the remaining infrastructure and installation works. Together, the partners will help build what is set to become the largest commercial offshore wind farm in the United States.

Technical Details of the Prysmian Dominion Energy Offshore Wind Cables

Under the BoP contract, the DEME–Prysmian consortium will handle transportation and installation of foundations and offshore substations, as well as full EPCI (Engineering, Procurement, Construction and Installation) for the export and inter-array cables. Prysmian’s share, worth about €630 million, covers cable supply and related installation activities within the overall €1.6 billion contract value.

Prysmian will provide three 3-core 220 kV HVAC export cables, each about 62 km long, totaling roughly 560 km, with XLPE insulation and single-wire armoring. The company will also supply 320 km of 3-core 66 kV offshore inter-array cables using the same XLPE technology to connect turbines within the wind farm.

Global Manufacturing Footprint for CVOW

Prysmian will manufacture the export cables at its plants in Arco Felice, Italy, and Pikkala, Finland, which serve as major hubs for high-voltage submarine cables. The inter-array cables will come from its facility in Nordenham, Germany, another center of excellence in Prysmian’s global network. The partners expect to complete the CVOW project by 2026, supporting Dominion Energy’s clean energy and infrastructure strategy.

Strategic Milestone for Prysmian and DEME

“Following the Vineyard offshore project and the SOO Green HVDC link, this Dominion Energy award further confirms our leading role in helping customers achieve their energy transition goals,” said Prysmian Group CEO Valerio Battista. He emphasized that the U.S. remains a key growth market, especially as federal infrastructure and clean energy commitments accelerate new offshore wind investments.

EVP Projects Hakan Ozmen noted that Dominion selected the Prysmian–DEME consortium for its unique mix of financial strength, technical experience, fleet resources, and cable supply capabilities, which reduce interface risk on such a large-scale project. For both Prysmian and DEME, the CVOW BoP contract reinforces their leadership in the global offshore wind supply chain and positions them at the center of the U.S. offshore wind build‑out.

 

 

 

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