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World’s largest offshore wind farm opens in England

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LONDON: The world’s largest offshore wind farm opened on Thursday off the northwest coast of England when Danish energy group Orsted unveils the Walney Extension project. The wind farm has a capacity of 659 megawatts (MW), enough to power almost 600,000 homes, and overtakes the London Array off England’s east coast which has a capacity of 630 MW.


Walney Extension is made up of 87 turbines built by Siemens Gamesa and MHI Vestas, and covers 145 square kilometres (55 square miles), which is equivalent to around 20,000 football pitches.


The 40 eight-megawatt MHI Vestas turbines being used stand 195 metres (213 yards) tall and are the largest wind turbines in operation globally. Orsted said they have been optimised to generate as much as 8.25 MW each.


Matthew Wright, Orsted UK managing director, said in an interview Britain’s offshore success was due to a combination of strong wind speeds and shallow waters in the North Sea and Irish Sea as well as continued support from the government.


Britain is the world’s largest offshore wind market, hosting 36 per cent of globally installed offshore wind capacity, data from the Global Wind Energy Council showed.


Walney Extension was among the first renewable projects to secure a so-called contract for difference (CFD) subsidy from the British government in 2014.


The contract guarantees it a minimum price for electricity of £150 ($195) per megawatt hour (MWh) for 15 years. Since this was awarded, the cost of offshore wind has fallen dramatically to a low of £57.50 per MWh in the last auction held in 2017.


Blades for both sets of turbines were made at British factories, in Hull and the Isle of Wight, and Wright said the company was keen to use local facilities. “Approximately 50 per cent of the value of the project over its lifetime will have come from UK sources,” he said.


— Reuters


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