[citation needed] The gas turbine generator is a General Electric LM2500, producing a peak of 25,000 kW (34,000 hp) fueled by MGO.

[citation needed] There are two propulsion electric motors, driving fixed-pitch propellers and six thrusters used during maneuvering – three at the bow and three at the stern.

)[citation needed] In June 2017 Diamond Princess was retrofitted with a hull air lubrication system to reduce fuel consumption and related CO2 emissions.

Starting in 2014, she undertook cruises from Yokohama for Tokyo or Kobe in the northern summer season.

[9] Kota Kinabalu was added as part of her destination along with Vietnamese port of Nha Trang in December 2016.

[11] After the 2018 Australia and New Zealand cruises, Diamond Princess was re-positioned into South-East Asia for most of 2018, varying between Japan, South Korea, Singapore, Vietnam, Taiwan and Malaysia.

[12] In February 2016, Diamond Princess experienced a gastroenteritis outbreak, caused by norovirus sickening 158 passengers and crew on board, as confirmed after arrival in Sydney by NSW Health.

He visited a local Hong Kong hospital, six days after leaving the ship, where he later tested positive for COVID-19 on 1 February.

[14] On its next voyage, 4 February, the ship was in Japanese waters when 10 passengers were diagnosed with COVID-19 during the early stages of the COVID-19 pandemic.

As of 1 March, all on board including the crew and the Italian captain Gennaro Arma had disembarked.

[28] Japan ended up paying 94% of the medical expenses incurred by the Diamond Princess passengers.