Finland's Wartsila has clinched a deal to provide equipment for Virgin Voyages' newbuilding vessels.
The trio of 2,800-passenger vessels are to be built by Italy's Fincantieri.
Wartsila will supply engines, hybrid exhaust cleaning scrubber systems and selective catalytic reduction (SCR) gear, as well as integrated navigation systems.
The ships will be powered by two eight-cylinder and two twelve-cylinder Wartsila 46F engines.