Nexans' new $200m subsea cable plant in Charleston, South Carolina has been hailed as the start of what is expected to be a massive industrial ramp-up to support the offshore wind sector, after the French manufacturer completed the largest US supply chain investment by a private firm so far.

The 44,000-square-metre Nexans plant was converted from manufacturing high voltage transmission lines to cables for offshore wind farms, and already counts as customers Eversource