Barrow Offshore Wind Farm

The project of Barrow Offshore Wind Farm

British and Danish energy groups Centrica and DONG Energy have developed a 90 MW wind farm in the East Irish Sea approximately 7km south west of Walney Island, near Barrow-in-Furness. The project is called Barrow Offshore Wind (BOW).

The wind farm comprises 30 modern, efficient, wind turbines, each capable of producing 3MW of electricity, delivering power to the existing grid system at Heysham via buried subsea and onshore cables.

Anticipated annual production will be 305 GWh, which is capable of supplying around 65,000 homes. This figure is based on average wind availability and efficiency ratings of the wind turbines.

For further infomation, visit the website of Barrow Offshore Wind Farm.

BOW's rectangular site covers an area of approximately ten square kilometres around 7km from Walney Island and the farm has its own offshore substation. It consists of a total of 30 turbines in four rows, two with seven turbines and two with eight. The turbines arespaced 500 metres apart. The rows are spaced 750 metres apart.

• Wind turbine type (Vestas) V90/3.0 MW
• Total output 90 MW
• Expected average annual output 305,000 MWh
• Rotor diameter 90 m
• Hub height 75 m
• Weight, blade 7 tonne
• Weight, nacelle 91 tonne
• Weight, tower 153 tonne
• Total weight per wind turbine 765-845 tonne
• Cut-in wind speed 4 m/s
• Full power output from 14 m/s
• Cut-out wind speed 25 m/s
• Mean wind speed at 75 metres' height 9 m/s
• Depth of water 15 - 20 m
• Distance from shore 7.5 km
• Distance between wind turbines 500 m (750 m between rows)
• Wind farm site 10 km²