The first power has been generated from the West of Duddon Sands wind farm off the UK coast.
A total of 42 out of 108 turbines that make up the overall project have been installed so far and power from four turbines is being exported to the National Grid.
Once completed, the wind farm will have a total capacity of 389MW – enough to meet the annual electricity demands of around 280,000 households.
Developed by ScottishPower Renewables and DONG Energy, it is located around 20 kilometres off the Barrow-in-Furness coastline in North West England.
Keith Anderson, CEO of ScottishPower Renewables said: “Constructing an offshore wind farm is a major engineering challenge and it is fantastic to see all of the different elements of the project coming together to achieve first power.”
More than 1,000 people are currently working on this project.