Nexans gears up modernised US offshore wind cable factory for lead-off Orsted delivery

Contractor to deliver some 110km of high voltage lines from its upgraded South Carolina plant for 132MW South Fork project, expected to start up off New York state in 2023

Nexans inaugurates Charleston cable maker. Nexans refurbished cable making plant in Charleston, South Carolina.
Nexans inaugurates Charleston cable maker. Nexans refurbished cable making plant in Charleston, South Carolina.Foto: Nexans press release

France’s Nexans has won a contract from the Orsted-Eversource Energy joint venture to manufacture the high voltage (HV) subsea cables for the developers’ 132MW South Fork project offshore wind project off the state New York in the US Atlantic.

The contractor will deliver some 110km (68 miles) of three-phase 138kV high voltage alternating current (HVAC) lines out of its plant in South Carolina for the project, located 55km off Montauk Point in the south of the state, to transport produced power to flow into the onshore grid at Long Island.

The contract is the first under a framework supply agreement for up to 1,000km of underwater HV cables in the US by 2027 agreed between Nexans and Orsted Wind Power North America, which has multiple projects along the US east coast from Maryland to Massachusetts, some with joint venture partners, that will need export cables.

“The project represents a great opportunity for Nexans to support the US’ burgeoning offshore wind sector, which is providing better energy security, driving economic development, improving energy price stability, and contributing to the fight against climate change,” said Ragnhild Katteland, Nexans’ executive vice president for subsea and land systems.

The company last November completed a $200m expansion of its cable factory in Charleston, the only facility in the US with the manufacturing capability to deliver subsea cables up to 525kV HV direct current and 400kV HVAC. The contractor recently added a latest addition to its construction fleet, with the launch of the Aurora cable-layer.

Orsted and Eversource expect to begin construction of South Fork this month with commercial operation starting up in December 2023.

The project, being built around Siemens Gamesa SG11.0-200DD turbines and featuring a first US-built substation being supplied by Kiewit Offshore Services, the largest offshore fabricator in the US, will produce electric power for 70,000 homes and businesses under a contract signed last decade with Long Island Power Authority.
The US Biden administration is targeting a national goal of having 30GW of offshore wind capacity online by 2030 and BOEM has ramped up its permitting approvals to reach that objective.
The Department of Interior has set a goal of having 12.5GW of offshore wind online by 2025. A report by American Clean Power released recently forecasts between 23GW and 40GW of offshore wind capacity spurring $120bn in economic investment resulting from development of these proposed areas.
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Published 12 January 2022, 17:17Updated 12 January 2022, 17:25
USOrstedEversource EnergyNexans