Fred Olsen Cruise Lines has used shore power for the first time.
Borealis and Bolette both connected to shore power during recent voyages, with the latter utilising up to 27,000 kilowatts of renewable hydropower after a seven hour connection in Bergen.
Bolette will connect again when it returns to the Norwegian city on May 23.
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Stuart Ferguson, head of quality and resource at Fred Olsen Cruise Lines, said: “Our sister ships Bolette and Borealis, the newest additions to our fleet, have brought a number of benefits to our brand, not only with enhancing onboard facilities but also with innovative new technologies that allow us to sail the world more sustainably.
“Being able to connect to shore power allows us to turn off our engines and make use of renewable energy to keep our ships running while in port.
“Cruising has pioneered the way among the shipping and maritime industries with these sustainable developments in engineering and we look forward to being able to connect in more ports as shore power technology becomes more accessible across the world.”