Germany's MAN Energy Solutions is experiencing record levels of engine orders for cruiseships.
Sales this year are nearing EUR 100m ($116m), it said.
This involves systems for seven new vessels in the first eight months, as well as scrubbers.
The orders total almost 300 MW of installed power for ships ranging in size from 50,000 gt to 140,000 gt, and running on fuel types from HFO to LNG.