KIRKWALL, SCOTLAND - MAY 25: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge during a visit to the European Marine Energy Centre on May 25, 2021 in Kirkwall, Orkney, Scotland. (Photo by Jane Barlow - WPA Pool/Getty Images)
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KIRKWALL, SCOTLAND - MAY 25: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge during a visit to the European Marine Energy Centre on May 25, 2021 in Kirkwall, Orkney, Scotland. (Photo by Jane Barlow - WPA Pool/Getty Images)
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KIRKWALL, SCOTLAND - MAY 25: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge on board HMS Puncher during their visit to the Orbital tidal energy turbine at the European Marine Energy Centre on May 25, 2021 in Kirkwall, Orkney, Scotland. (Photo by Jane Barlow - WPA Pool/Getty Images)
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KIRKWALL, SCOTLAND - MAY 25: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge given whisky by CEO Andy Scott (right) to throw overboard to bless the Orbital Marine Power tidal energy turbine at the European Marine Energy Centre on May 25, 2021 in Kirkwall, Orkney, Scotland. (Photo by Jane Barlow - WPA Pool/Getty Images)
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KIRKWALL, SCOTLAND - MAY 25: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge on board the Orbital Marine Power tidal energy turbine at the European Marine Energy Centre on May 25, 2021 in Kirkwall, Orkney, Scotland. (Photo by Jane Barlow - WPA Pool/Getty Images)
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