Awarded to Balfour Beatty Utility Solutions, Amec Group, MSVE Transmission, a joint venture of Morgan Sindall and Vinci Energies United Kingdom, and Babcock Networks, the contracts have a cumulative value of approximately £450m.

SHE Transmission Transmission director David Gardner said the contracts, along with some of the industry’s global experts will help deliver the infrastructure that is needed to support the connection of renewables, as well as providing a boost to the local communities where the company operates.

"These awards follow on from our announcement in March 2013 where we placed contracts for the value of £600m to facilitate the delivery of new electricity substations in the north of Scotland," Gardner added.

The contracts are expected to generate more than 600 jobs, while providing a boost to local economies associated with the projects.

The transmission network development forms an integral part of the investment program and will help to facilitate the connection of more renewable generation in the north of Scotland.

SHE Transmission is upgrading and reinforcing the network, with a £1.5bn capital investment program, which has the flexibility to increase by a further £4bn, if required.

More than 2,600MW of renewable energy have been connected to date in the SHE Transmission licensed area.