The windfarm turbine array consists of a number of rows of wind turbines connected by cables to one substation, where the voltage is stepped up from 34 kV to 132 kV, before the export cables on the seabed carries the power to shore.

Walney 1
The offshore substation in Walney 1 is placed inside the area of the wind farm, and was placed on Tuesday 15 June 2010, as one gigantic 1,100-tonne lifting operation concluded the installation of the offshore substation.

The blue line marks the export cable for Walney 1 and the red for Walney 2.