WASHINGTON, Sept. 6, 2024 /PRNewswire/ -- Cruise Lines International Association (CLIA), the leading voice of the global cruise industry, today released its annual Global Cruise Industry Environmental Technologies and Practices Report, showing continued progress by the sector in advancing its environmental and sustainability agenda, including investments in ships and technologies for the uptake of transitional and alternative fuels.
"Cruise lines are continuing to reduce their emissions at sea and at berth in pursuit of net zero emissions by 2050," said Kelly Craighead, president and CEO of Cruise Lines International Association. "This year's environmental technologies report demonstrates their progress, with the industry investing in engine technologies with conversion capabilities that will allow ships to use more renewable energy sources as they become available and making important incremental steps to employ a range of other environmental technologies and practices to advance the industry's wider sustainability initiatives."
Highlights from the industry's 2024 Environmental Technologies and Practices report include:
Fleet Profile
- The CLIA-member ocean fleet includes 303 ships and a total capacity of 635,000 lower berths operated by 45 cruise line brands representing 90% of capacity - an increase of 3.6% and 3.34% respectively, compared to the prior year.
- Analysis of the current CLIA member cruise line fleet indicates that the majority of ocean-going ships operated by CLIA member cruise lines are small to mid-size ships, with ship size distribution across the fleet as follows:
- 35% of ships are small ships (fewer than 1,000 lower berths)
- 38% of ships are mid-size ships (1,000 to fewer than 3,000 lower berths)
- 26% of ships are large ships (upwards of 3,000 lower berths)
Fuel Flexibility
CLIA member cruise lines are investing in new ships and engines that allow for fuel flexibility. This includes capability to use renewable biodiesel, investments in the capability to use green methanol when available, and liquified natural gas (LNG). Ships designed with engines and fuel supply systems able to operate on LNG will be able to switch to zero and near-zero fuels such as bio or synthetic LNG in the future, with no engine modifications.
- 19 ships (representing 7% of the fleet and 13% of the fleet's global capacity) are using LNG for primary propulsion.
LNG has virtually zero sulfur emissions and particulate emissions, reduces NOx emissions by approximately 85% and achieves up to a 20% reduction in GHG emissions. Multiple reports confirm that methane slip (small amounts of escaped methane) - an acknowledged issue with LNG engines - is on a path to be nearly eradicated, with some industry stakeholders claiming that slip values of less than 1% is achievable within the next few years.
Selective Catalytic Reduction Technology (SCR)
- 71 ships, representing 25% of the fleet and more than 20% of global capacity, have SCR systems - an increase of 34% from 2023.
Selective Catalytic Reduction technology (SCR) reduces particulate matter and nitrogen oxides emissions, thus helping ships to meet IMO Tier III classification standards for nitrogen oxide emissions (NOx).
Onshore Power Supply (OPS)-also referred to as Shoreside Electricity (SSE) Capability
Plugging in to OPS when ships are in port allows ships' engines to be switched off, achieving significant overall pollutant emissions reductions of up to 98%, depending on the mix of energy sources, according to studies conducted by a number of the world's ports and the U.S. Environmental Protection Agency.
Across the CLIA cruise line member fleet:
- 147 ships are able to connect to OPS (52% of the total number of ships and 61% of capacity) - 23% more than the prior year and 167% more since 2018.
- By 2028, 239 ships that are able to connect to OPS are expected to be in service (based on the number of ships scheduled to be retrofitted and new ships on the order book specified for OPS connectivity). This includes 64 ships currently in service and each of the 28 CLIA member cruise ships on the 2024- 2028 order book - all of which are specified for OPS connectivity.
CLIA champions the advancement of onshore power infrastructure as an important component in the industry's work to reduce emissions and supports continued development of cost-effective infrastructure for clean shoreside electricity in cruise ports when the net impact delivers an overall emission reduction.
- Currently 35 of the ports worldwide where cruise ships call (fewer than 3%) have a cruise berth with OPS.
- 22 additional cruise ports are funded for OPS infrastructure and 16 cruise ports are planning to install OPS - a total of 38 ports.
In 2022, CLIA announced that its ocean cruise line members made a commitment that all ships calling at ports capable of providing OPS will be equipped to either use shore power by 2035 or be able to use alternative low-carbon technologies, as available, to reduce emissions in port.
As part of the EU's Fit for 55 decarbonization regulations, by 2030 major ports in Europe will be required to have shoreside power, which will further accelerate port infrastructure investment in that region.
Advanced Wastewater Treatment Systems (AWTS)
The majority of CLIA-member cruise ships sailing today utilize advanced wastewater treatment systems (AWTS), which are capable of exceeding MARPOL Annex IV requirements and perform better than shoreside treatment plants in some coastal cities. In addition, as part of their overarching sustainability focus, cruise lines have committed to not release untreated sewage anywhere in the world, during normal operations.
- Across the CLIA cruise line member fleet, 225 ships (80% of the total, representing 84% of global passenger capacity) are equipped with AWTS (an 11% increase from 2023 and a 65% increase from 2018).
- More than one-third of the ships equipped with AWTS are capable of meeting the more stringent wastewater release standards of the Baltic Sea Special Area.
Freshwater production
- The majority of CLIA members produce their own fresh water onboard their ships, with 267 ships (representing more than 94% of reporting ships and 96% of global capacity) able to do so - of which 172, nearly 60% of the fleet, are capable of producing enough water to match their total consumption.
About Cruise Lines International Association (CLIA)
CLIA is the world's largest cruise industry trade association, providing a unified voice for the industry as the leading authority of the global cruise community. On behalf of its members, affiliates and partners, the organization supports policies and practices that foster a secure, healthy, and sustainable cruise ship environment, promoting positive travel experiences for millions of travelers who cruise annually. This year, CLIA forecasts that the annual number of passengers will reach 35.7 million passengers- surpassing 2019 levels. The CLIA community includes the world's most prestigious ocean, river and specialty cruise lines; a widespread network of stakeholders, including ports and destinations, ship development, suppliers, and business services; and highly trained and certified travel agent members that represent the largest network of travel professionals specializing in cruise travel. The organization's global headquarters are in Washington, DC, with regional offices located in North and South America, Europe and Australasia. For more information, please visit cruising.org or follow us on Facebook, Instagram, Twitter, and YouTube with our handle @CLIAGlobal-or on LinkedIn.
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