Crompton Greaves will design, engineer and supply the substation. It will also integrate all the equipment to connect the 33kV and 156kV networks serving the 80-turbine wind farm using AC/DC technology already deployed at the 330MW Belwind offshore project.
Design and manufacturing will take place during 2012 and the installation is planned for 2013.
Crompton Greaves CEO Laurent Demortier said: "We are confident that our connecting solutions will soon become a standard for the offshore wind industry."
Earlier this month, WPD handed Dutch civil engineering contractor Ballast Nedam a contract for the design, delivery and installation of 80 monopile foundations.