SUSTAINABILITY
TECHNICAL
installations in the future – including cruise vessels.
cleaner 2050 Cruising towards a
The need to halve ship greenhouse gas emissions by 2050 and the rise of sustainable tourism demands a comprehensive and proactive response writes Juha Koskela, md, ABB Marine & Ports.
W
hether distinguished by mega scale, adventurous itineraries or sheer luxury, cruise ships built today are
uniformly more effi cient and consume less energy per guest than ever before.
As is the case elsewhere in shipping, regulatory requirements on emissions have led the cruise sector to seek these effi ciencies from less polluting fuels. Environmental restrictions on fuel sulphur content, for example, are one factor behind the arrival of the fi rst mega cruise ships powered by liquifi ed natural gas (LNG) in the market.
However, sustainability is also a reputation issue. Environmental sustainability tops agenda for cruise, as highlighted by industry body Cruise Lines International Association (CLIA) in the 2020 outlook report. Today’s cruise travelers not only expect – they demand sustainable journeys and are passionate that the environment is left unspoiled.
For shipowners, the maneuverability, effi ciency, maintenance and emissions gains available to Azipod® electric propulsion continue to meet the needs on sustainability. Recent references include new and environmentally-aware brands such as the Ritz-Carlton Yacht Collection and Virgin Voyages. Azipod® propulsion has also been chosen for the next-generation cruise vessels by Genting Hong Kong powered by LNG – a fuel that cuts sulphur emissions and particulate matter by 99%, NOx emissions by 85%, and CO2 emissions by 20% when compared to conventional fuels.
seatrade-cruise.com
Industry standard for sustainable cruising, Azipod® propulsion is also the technology of choice for ice-going vessels.
Recent expedition ship orders include the discovery megayacht Scenic Eclipse, the polar class National Geographic Endurance by Lindblad Expeditions, and Ponant’s hybrid Le Commandant Charcot to which ABB is also delivering the energy storage solution. For these vessels, lower vibrations and noise levels achieved by Azipod® units is especially advantageous.
The role of ABB Marine & Ports in ensuring ship sustainability goes far beyond its invention of Azipod® propulsion and extends from bridge to propeller to include the power, automation and control technologies underpinning greater ship effi ciency, enhanced safety and environmental performance.
ABB has led the industry in providing shore connections that allow cruise ships to achieve zero emission operations in ports by drawing on electric power from land. As well as enabling green port calls, shore power helps to reduce vibrations on board and noise pollution in port areas. Zero-emission shipboard energy storage solutions are also part of ABB’s cruise ship newbuilding and retrofi t mix.
Fully electric solutions are already being selected in some parts of the shipping industry today: Niagara Falls tour operator Maid of the Mist recently ordered two all-electric vessels powered by ABB technology. The scene is set for much larger
Among alternative emissions-free technologies, ABB is already well advanced in developing fuel cell power plants for ships, in collaboration with several suppliers.
Recently, ABB signed and MoU with Ballard Power Systems covering the development of a next-generation high power fuel cell power system for sustainable marine e-mobility. ABB and Ballard plan to leverage existing kilowatt- scale fuel cell technologies and optimize them to create a pioneering megawatt-scale solution suitable for powering larger ships, with an electrical generating capacity of 3MW (4000 HP). The new system is envisaged as fi tting within a single module no bigger in size than a traditional marine engine running on fossil fuels.
As a technology enabler, ABB also has suffi cient experience and knowledge to off er informed views on other potential cruise ship ‘fuels of the future’ (biofuel, synthetic, ammonia and hydrogen). We could note, for example, that both synthetic fuels and ammonia are based on hydrogen, or that processing ammonia for shipboard use is more expensive than hydrogen, while the carbon capture involved with processing synthetic fuels makes it more expensive still.
From today’s standpoint, biofuels and hydrogen require less processing and therefore involve lower initial costs. In addition, though, ABB’s view is that biofuels are likely to be more ‘local’ in terms of availability, meaning that their impact on global shipping may in reality be limited.
ABB works with the technologies that prove themselves viable as meeting shipping’s future sustainability needs. Indeed, our ‘Electric. Digital. Connected.’ strategy links to perhaps the broadest range of sustainable technology alternatives available to the cruise ship industry.
In addition, ABB fi rmly believes understanding the progress being made towards more sustainable shipping by the cruise and ferry sectors off ers clear guidance for the wider industry on the technology choices that will help the entire industry meet its environmental responsibilities.
Seatrade Cruise Review 147
PHOTO: ABB
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