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Carnival Corporation has announced a programme of fuel- and energy-saving measures across its nine cruise line brands which will deliver an average of 5-10% fuel savings per ship.

The upgrades, which will be implemented across 2023, include investments in on-demand automation and controls, cooling improvements, LED lighting and efficient HVAC systems.

Carnival says its service power upgrade programme is expected to reduce fleetwide greenhouse gas emissions by more than 500,000 metric tons each year. In addition to the environmental benefits, when completed the programme is expected to generate over $150 million in annual fuel cost savings.

The technical system upgrades on each ship include using variable speed drives and on-demand automated control systems for engine room ventilation, main air conditioning chillers and cooling pumps, which together significantly reduce the energy needed to deliver cooling around the ship.

State-of-the-art LED lighting systems will be installed throughout each ship to reduce both power consumption and heat load generation – creating a dual benefit from lower air conditioning demand.

Expanded remote monitoring and analysis of each ship's energy performance and technical status will also ensure peak efficiency and minimal down times.

‘The Service Power program closely aligns with our long-term sustainability and decarbonisation goals and our highest responsibility and top priority, which is compliance, environmental protection and the health, safety and well-being of our guests, the people in the communities we visit, and our shipboard and shoreside personnel,’ said Bill Burke, chief maritime officer for Carnival Corporation. 

‘Based on our improved fleet composition, including adding six industry-leading LNG-powered ships, and our previous investments to increase efficiency and reduce emissions, our absolute carbon emissions peaked in 2011 despite significant capacity growth over the past decade. These tailored Service Power Packages further build on those efforts as part of our comprehensive approach to sustainability.’

The fleetwide enhancements are part of Carnival Corporation's ongoing energy efficiency investment program and efforts to reduce fuel consumption, including over $350 million invested in energy efficiency improvements since 2016, along with the company's fleet optimisation strategy and design of more efficient itineraries.

Together, these ongoing efforts are expected to drive a 10% reduction in fuel consumption per available lower berth day (ALBD) in the company's first full year of guest cruise operations compared to 2019, along with a 9% reduction in carbon emissions per lower berth distance travelled.


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