Four next-generation ships worth €800 million each have been ordered for Norwegian Cruise Line.

The vessels are due for delivery in 2022, 2023, 2024 and 2025, with an option for two additional ships to be delivered in 2026 and 2027.

The four 140,000 gross ton ships will each carry 3,300 passengers.

The new class of ships will build on the line’s Breakaway-Plus class and feature “a host of innovative designs”.

Energy efficiency will be a priority, with the aim of optimising fuel consumption and reducing the impact on the environment, according to the company

Details on the ships’ new features will be announced at a later date.

Norwegian Cruise Line Holdings president and chief executive, Frank Del Rio, said: “This new class of ships will continue Norwegian Cruise Line brand’s legacy of introducing meaningful innovation to the cruise industry.

“This order continues to highlight our disciplined newbuild program, extends our growth trajectory well into the future, enhances our already attractive earnings profile, and drives expected long-term returns for our shareholders.”

NCL president and chief executive Andy Stuart added: “For the past 50 years, Norwegian Cruise Line has been focused on offering our guests the very best in cruising.

“It is with great excitement that we look ahead to our next 50 years, which includes this next generation of ships that will offer guests the innovative experiences that have come to define the Norwegian Cruise Line brand.”

Giuseppe Bono, chief executive of Italian ship builder Fincantieri, said: “We are extremely excited to collaborate with Norwegian Cruise Line and this partnership allows us to include a new prestigious client in Fincantieri’s portfolio.

“We are very proud of the innovative design of these ships and recognise the various stakeholders of the export chain who have contributed decisively to achieving this goal.

“The significant value of the order will provide substantial economic benefits by extending the employment horizon of our shipyards, and we are honored to support the growth of our country’s economy.”