A RECORD-BREAKING 700km undersea electricity interconnector linking Britain with Norway is being evaluated by National Grid.
Tenders are being sought to install the single direct current interconnector cable in waters up to 500m deep.
A National Grid spokesman confirmed on Monday that the project had already been technically assessed and judged to be feasible.
'We are about to begin the final evaluation of the commercial feasibility by seeking tenders and talking to market players around Europe, ' the spokesman added.
With a maximum capacity of 1,300MW the interconnector would allow the UK to import cheap peak time electricity generated in Norway's hydropower schemes.
It would also be possible to export off peak power to help conserve Norwegian reservoir levels.
The existing interconnector between England and France has a capacity of 2,000MW. Peak UK demand can top 50,000MW.
In the longer term the link could transmit power to and from other northern European countries.