Untangling undersea cabling

A submarine power cable on the seabed. Credit: Shutterstock

With offshore wind generating larger amounts of power, more thought must be given to subsea cable tracing to avoid damage and high insurance claims

According to a 2008 study titled Will British weather provide reliable electricity?, there is enough potential offshore wind power in the North Sea to
meet the UK’s entire domestic demand – about 57 GW – three times over. The British Isles lead the world in the offshore wind segment. Wind farms supplied 14% of British energy in 2017, of which 6.6% was offshore; offshore wind’s total contribution amounted to nearly 5 TW.

It is, however, joined in that endeavour by various European countries on the coast of the North Sea. Germany is the second-biggest player in wind, and is racing Denmark to the bottom in terms of getting the biggest wind farms for the least subsidy cash. With 14,500 km of coastline, many predict huge investment from China in the coming decade too, analysts said. Norway will also join the fold, having announced in March 2019 that its sovereign wealth fund will divest USD7.5 billion worth of oil stocks this year.

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