Meyer Group, which entails the shipyards in Papenburg and Rostock in Germany and Turku in Finland, has unveiled a design for a 150 metre megayacht that is powered by fuel cells and batteries.

Called ONE 50, the design has an engine output of 25,000kW and it can attain a top speed of 23 knots. It has six decks and accommodation for 44 guests. The vessel has a two deck spa, cinema, infinity pol and an art gallery.

Megayachts are a new area of interest to the group and senior officials say they can be built at all its three yards.