The $235m Connecticut State Pier offshore wind redevelopment finally received a key federal permit after lengthy delays that strained relations with backers including global development giant Orsted.

The US Army Corps of Engineers (ACE) – which has jurisdiction over all activities in US inland and coastal waters – issued its permit on 16 December, enabling the Connecticut Port Authority (CPA) to authorise the project to proceed.

The redevelopment – a collaboration between Orsted and its local utility partner Eversource with the state – will position the 35-acre (14-hectare) port in New London as a major offshore wind manufacturing and marshalling hub.