Balfour Beatty Engineering Services (BBES) has been awarded the electrical infrastructure contract for the extension of Scottish Power Renewables' Whitelee wind farm.
The extension to the wind farm at Whitelee, to the south of Glasgow, will add another 75 turbines raising the generating capacity to 539 MW, enough to power about 300,000 homes.

Whitelee is already the largest onshore wind farm in Europe with the existing 140 turbines having the capacity to generate 322 MW, enough to power around 180,000 homes. The development will see 69 Alstom ECO 100 turbines added, each with a 3 MW capacity and six ECO 74 turbines with 1.67 MW capacity each.

BBES was an integral part of the team responsible for delivering the first phase of the project ahead of schedule.

For the extension, BBES will be working with John Sisk and Son and Roadbridge (Sisk Roadbridge JV) to provide the electrical infrastructure works including the substation and control building services, the supply and installation of switchgear and the installation of around 400,000m of power and control cabling.

Alan McCann, regional director at BBES said: 'Following BBES' involvement in successfully delivering the original Whitelee Wind Farm, we are again very proud to play our part in delivering the country's renewable targets.'

As part of the Balfour Beatty Group, revenues of £550 million and a workforce of 3,200, BBES operations are conducted from centres across the UK.

The extension of Whitelee Wind farm is due to be completed in 2012.