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Contractor picked for exploratory works on £1bn pumped hydro scheme

Strabag UK has been picked to finish exploratory works for a £1bn pumped hydro mission at Coire Glas in Scotland.

The 1,500MW mission on the shores of Loch Lochy is backed by SSE Renewables and is the primary scheme of its variety within the UK for 3 many years.

Pumped hydro tasks are designed to make use of renewable vitality to put water into an higher reservoir, which shops the water, and when it’s launched it generates electrical energy from generators. The Coire Glas mission will contain the development of an higher reservoir, measuring as much as 92 metres deep and 0.6 miles broad.

A 4 metre-diameter tunnel of as much as 0.6 miles lengthy will probably be constructed to attach the higher reservoir and the loch, in addition to an underground energy station advanced.

Preliminary plans for the Coire Glas project envisaged a 600MW-capacity scheme, however this was revised to 1,500MW, and it was authorised by the Scottish Authorities in October 2020. The mission is anticipated to take 5 to 6 years to finish and the ability may have an operational lifespan of greater than 50 years.

Of the mission’s estimated price of greater than £1bn, over 70 per cent is for the civil engineering constructions.

4 groups had been invited to tender for the Scottish mission’s exploratory works in February. These included:

  • Bechtel, Acciona Construcción and Webuild consortium;
  • Bam Nuttall, Eiffage Génie Civil and Marti Tunnel consortium;
  • Dragados and BeMo Tunnelling UK consortium; and
  • Strabag UK.

The findings of the exploratory works will probably be used to tell the ultimate design and will probably be an necessary consideration in SSE Renewables’ closing choice on whether or not to proceed with the Coire Glas mission.

Coire Glas mission director Ian Innes stated: “Coire Glas is likely one of the most important engineering tasks to happen within the UK for a few years and this was mirrored within the high quality of the tenders SSE Renewables obtained for the exploratory works.

“With Strabag UK in place, we will improve our deal with the native provide chain, and ensuring that Coire Glas supplies a legacy of jobs and funding for companies within the space. We look ahead to continuing with the exploratory works later this yr and taking one other vital step ahead within the growth of Coire Glas.”

The Coire Glas scheme is one in every of a lot of pumped hydro tasks at present below means in Scotland. In June 2021, the Scottish authorities authorised a £550m scheme on the shores of Loch Ness.