Cruise ships, gas carriers cut fuel consumption up to 8%

In another sector, Norwegian shipping company Odfjell has integrated Oceanly’s shaft power limitation (ShaPoLi) technology on its ships. This is designed to intelligently limit shaft power based on dynamic operational data to maintain compliance with emissions regulations by optimising fuel consumption.

Odfjell is using Oceanly software to replace some of its current Energy Efficiency Existing Ship Index (EEXI) engine power limitation processes, which can have a restrictive impact on access to necessary engine power, especially during acceleration.

The ShaPoLi technology offers a more adaptive and responsive power management option, aligning with guidelines in certain jurisdictions, such as the Port of Houston, that prioritise the ability to override power limiters in emergency situations.

Mr Lerche-Tornoe said improving ship efficiency through data analytics is more effective at present than preparing for alternative fuels at reducing overall emissions.

“Focusing on immediate improvements in energy efficiency across the global fleet offers a more achievable path to reducing emissions now,” he explained to Riviera.

“We are not saying green fuels are not part of the future; they absolutely are. But they are not the quick fix many hope for,” he continued.

“First, we need to address the current inefficiencies in our fleet, ensuring shipping is ready for a future powered by renewables. There is a need for balance.”

Mr Lerche-Tornoe points out that, according to DNV’s Maritime Forecast, shipping cannot meet 2030 targets using carbon-neutral fuels alone and the sector must instead focus on the energy-efficient technologies and practices available today, such as wind-assisted propulsion, advanced hull lubrication to reduce water resistance, waste heat recovery systems, and more efficient engine designs.

“Improving energy efficiency across the global fleet is the most important step we can take in the short term,” says Mr Lerche-Tornoe. “By improving how we manage and reduce energy use now, we can prepare for a smoother shift to renewable energy when it is widely available.”

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