As global wealth has grown in recent decades and the concept of enjoying a foreign holiday has become standard for many people, so accordingly has the cruise trade grown. Once the preserve of the very rich, cruises are now affordable to many and this segment has experienced significant growth.
Today’s cruise ships must accommodate high demands for reliable, comfortable and silent power generation onboard.

As cruise vessels typically sail in environmentally sensitive areas, the engines employed in this segment must meet stringent emission regulations in terms of NOx, SOx and particulate matter.

While ensuring minimal impact on the environment operators also seek to keep operating costs at economic levels in order to offer affordable holiday experiences to their customers.


MAN Energy Solutions offers a wide range of highly efficient and reliable common-rail engines for powering cruise ships. Common-rail technology allows the independent setting of injection timing, duration and pressure for each cylinder. This flexibility promotes the highest possible degree of freedom of optimisation in fuel consumption, NOx and smoke emissions along the engine’s operating profile, especially at part-load.

Our four-stroke engines are also available as dual-fuel engines capable of running on gas, as well as on fuel oils, to ensure compliance with existing and upcoming regulations on permissible NOx and sulphur emissions.  To our customers this solution adds the benefit of fuel flexibility. For engines running on fuel oils, we offer exhaust-gas-cleaning systems such as SCR (Selective Catalytic Reduction) to minimize NOx and scrubbers to reduce SOx.

We supply complete generating sets to secure reliable and economical power generation and distribution. Modern auxiliary engines run on the same high-viscosity fuel grades as the main engines to maximize economy. Overall installation costs can be minimised by using compact modular fuel treatment systems, available in standard sizes.

Generally speaking, we offer a high degree of redundancy in our engine solutions, whether diesel-electric or mechanical propulsion plants. Customers can also choose to maximize engine availability through one of our optimized maintenance planning programs.

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