Ramboll has partnered with Kiewit – the largest offshore fabricator in the US – to design and build a high-voltage alternating current (HVAC) offshore substation topside for the South Fork Wind project being led by Ørsted and Eversource. The project will bring New York its first offshore wind farm and will be the first American built offshore topside platform in use for the wind industry. Once operational, the 12-turbine offshore wind farm is expected to power over 70,000 homes on Long Island.
Over the next two years, the 1,500-ton, 60-foot-tall substation topside will be built at Kiewit’s facility in Texas before being transported to the Eastern seaboard. The platform will be designed as a Type A normally unmanned platform to be manned only during service and repair work. Control and monitoring activities will be carried out from the onshore control station.
The Ramboll team has played a pivotal role in tailoring the design to the US market, accounting for local regulatory compliance and permitting standards. In August, the Bureau of Ocean Energy Management (BOEM) issued its final environmental impact statement (EIS) and is expected to issue a record of decision in October. The project – which is only the second commercial-scale offshore wind project in the US – is on track to be fully permitted in early 2022 and projected to be fully operational by the end of 2023.