The preferred bidders for a new nuclear power plant with contract values of more than £1.3 billion have been revealed.

EDF Energy announced the names of companies for the Hinkley Point C project in Somerset.

They include joint venture Balfour Beatty Bailey for electrical cabling and equipment installation, ABB UK for power transmission and Laing O’Rourke for construction of workers’ accommodation.

It is estimated more than 60% of the construction cost will be placed with UK firms against an initial estimation of 57%, the Big Six supplier said.

The proposed 3.2GW nuclear power station is expected to meet 7% of the UK’s electricity demand and create 25,000 jobs during construction, including 1,000 apprentices.

Energy Minister Andrea Leadsom MP said: “This is great news – Hinkley Point C offers a tremendous opportunity for the UK supply chain and we’ve worked closely with EDF to ensure British firms benefit.

“As part of our long term plan to support the industries of the future, create jobs and provide secure, affordable energy supplies for hardworking families and businesses, we are backing our nuclear sector by fostering innovation and opportunity as we cut carbon emissions.”