Hydroelectricity

Hydro power cable links Norway to Blyth

Stephanie Finnon

BBC Newcastle

A 450-mile cable being laid between Blyth in Northumberland and Norway will help reduce carbon emissions by 17% by 2030, National Grid says.

Work is already under way on the world's longest "interconnector", which will hook up the two countries' grids and eventually mean water flowing from mountains in Norway will help power British homes.

The renewable power will be carried under the North Sea to a converter station at Blyth and enter the British grid - enough to meet the peak winter power demand of three cities the size of Newcastle.

The £1.8bn collaboration between National Grid and Norwegian Statnett will be completed in 2021 with claims it could reduce customer bills because hydro electricity is cheaper to produce than carbon-based alternatives.