The first framework is for the provision and maintenance of high voltage cabling and the second will provide and maintain substations.
The cabling framework consists of four lots split into categories of work such as cable design and survey. The substation framework consists of five lots covering categories including civil works, design and ventilation works.
Contracts awarded through the frameworks will include the design and installation of power electrification equipment and the provision of electrical infrastructure for onboard air-conditioning.
The frameworks run for eight years with a four-year extension option. They are anticipated to contain projects worth in the region of £25m to £30m. The first contract is expected to be awarded this summer.
Balfour Beatty power systems managing director Mark Griffiths said: “We are delighted to have been awarded these framework appointments and to have been recognised as first place contractor in seven out of the total nine framework lots awarded putting us in prime place to bid for initial work. Our longstanding relationship with London Underground Limited, directly employed workforce and our in-house manufacturing facility give us the ability to provide a safer, cost effective delivery of electrification works for London’s tube network.”
Balfour Beatty’s Power Systems Traction Unit worked on London Underground’s £55m Metropolitan Line power upgrade, the £44m power upgrade to the District Line, the installation of new substations at West Ham and Upminster Bridge, and the provision of three new 22kV cable routes. It is also currently delivering the Traction 3A works valued at £42m.