Semco Maritime delivered a full electrical engineering, procurement, construction and installation (EPCI) scope for the offshore substations serving the Walney 1 and Walney 2 offshore wind farms in the UK Irish Sea. The work ran over the 2009–2011 period and included electrical and auxiliary systems such as cableways and cable pulling, communication systems, switchboards, firefighting and fire detection systems, weather systems and diesel power generation, as well as project management as part of the EPCI delivery. The customer was CS WIND (previously known as Bladt Industries), with Ørsted Energy stated as end customer.