UK start-up plans worlds longest subsea electric cable with Morocco

A start-up with former Tesco chief executive Sir Dave Lewis as executive chair is planning to build the world's longest undersea electric cable, stretching 3,800km between north Africa and Britain. Lewis said the project was also raising £800m to build three production facilities in the UK in a bid to tap into growing demand for the electric cables used for offshore wind farms and undersea interconnectors. The UK recently completed the world's longest existing interconnector, between Norway and Northumberland in north-east England, which cost about €2bn and stretches 720km across the North Sea. The rise of offshore wind in the UK has made interconnectors even more attractive, because it allows Britain to export power at times of surplus and import it when needed. Tom Edwards, a senior modeller at energy consultancy Cornwall Insight, said importing electricity from Morocco to the UK might not be cost-competitive by the time it starts operating because of the falling cost of wind power.

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