As of 2018 when designed, it was expected that Black Pearl could cross the Atlantic using only 20 litres (4.4 imp gal; 5.3 US gal) of fuel, aided by regenerative technologies.[8][needs update] One key technology to support this is to use the speed of the vessel through the water under sail to generate electricity with a variable pitch propeller.[8] The yacht also features heat capture technologies and large scale storage batteries to capture energy generated but not immediately used.

Holy shit that is cool (and equally concerning and inspiring).

Under sea trials, Black Pearl achieved 20 knots of speed on the water, and its developers expected as of 2018 that it might one day be able to transit the Atlantic using no fuel.[8] In its first crossing, 5,600 nm from Montenegro to St. Barths in 2023, Black Pearl sailed approximately 80% of the distance and consumed 32,000 liters of fuel.

Well, that’s disappointing.

A traditional similar-sized yacht would have consumed 200,000 liters for the same passage.[19]

Oh, I guess it’s still a huge improvement, but what the fuck.

Also, how does it only have a capacity of 12? Does it only have sleeping capacity for 12 or can it somehow really not hold more people than that while on the water at over 100m in length?