The West of Duddon Sands Offshore Windfarm is a joint venture project between ScottishPower Renewables and Ørsted, comprising 108 wind turbines with a total installed capacity of 389 megawatts. West of Duddon Sands was officially opened in October 2014. 

Located in the East Irish Sea approximately 14 km from the nearest coast on Walney Island, Cumbria, West of Duddon Sands Offshore Windfarm is situated in the vicinity of nearby operational windfarms: Barrow, Walney and Ormonde.

West of Duddon Sands has an attractive offshore location with excellent wind resources, favourable water depths and grid access relatively close to the shore.The short onshore distance to the grid makes this area particularly suitable for development, construction and operation of an offshore windfarm.

The construction work offshore included installation of foundations and wind turbines, export and array cables, and offshore substation.Onshore construction work included the onshore substation, as well as grid connection in Heysham, Lancashire, and building brand new bespoke O&M facilities for West of Duddon Sands in Barrow-in-Furness.

All 108 wind turbines used in the project are Siemens Wind Power SWP 3.6 megawatts with a 120 metre rotor diameter.