Construction firm Balfour Beatty has finished an £8.75 million scheme to transform power from the world's largest wind turbines for use by National Grid.

The project was for Westermost Rough Limited.

Balfour Beatty has installed an on-shore substation servicing Westermost Rough wind farm, off the coast of East Yorkshire, which is the first in the world designed to process the output of Siemens’ powerful 75 metre bladed 6MW turbines.

The project included the installation of a Gas Insulated Switchgear building housing supervisory control and data acquisition panels, batteries, low voltage panels and controls, transformers, switchgear, high voltage cabling, drainage, roads, fencing and protective blast walls.

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As part of its drive to contribute to local economies where it operates, Balfour Beatty employed local supply chain partners such as Humberside Aggregates and KE Lunness Aggregates, who were also able to reduce carbon emissions and transport costs on the project.

With up to 950 people working on the site from 28 nationalities, the communication of safety information was given high priority and the project was accident free for its lifetime of 589 days.

Balfour Beatty is now carrying out remaining works on site including the provision of access roads, drainage and external works to the perimeter of the substation.

The overall scheme will be complete in 2015.

(CD)