Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

Balfour JV secures £185M interconnector work

Interconnector tunnel

Eurotunnel subsidiary ElecLink has awarded a joint venture between Balfour Beatty and cable manufacturer Prysmian Group the £185M contract to install a 65km high voltage direct current interconnector in the Channel Tunnel.

The interconnector is the first in the world to be installed in a live rail tunnel.

Europe’s planned super gird project could be supported by the interconnector. The super grid would enable regions to share energy,  boosting renewables use and lowering costs.

With a 1GW capacity the interconnector could power up to 2M homes per year.

“As global leaders we have been trusted with the first ever installation of a High Voltage Direct Current interconnector in a live rail tunnel environment,” said Balfour Beatty power transition and distribution managing director Ian Currie.

“We will draw on our extensive experience of cable tunnel engineering projects, including the London Power Tunnels electricity superhighway, to deliver the project successfully.”

Two 50km cables will be laid through the Channel Tunnel’s north bore, connecting to converter stations in northern France and Kent. Cable manufacturer Prysmian Group will design and manufacture the 320kV cables and joints.

Offsite jointing facilities in Calais and Folkestone will be used to assemble 2.5km sections of cable.

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.