Demand for advanced propeller retrofits and energy-saving devices (ESDs) has nearly quadrupled since 2020 to enhance energy efficiency to meet tightening emissions regulations.
However, according to a new report from British class society Lloyd’s Register (LR), while high-efficiency propellers can deliver fuel savings of between 3-10%, and popular devices such as rudder bulbs can achieve 3.5% reductions, only 1.74% of the global fleet currently features the rudder bulb, the most popular device, with the report making a strong case for retrofitting, giving clients an idea of payback times for their investments (see below).
The orderbook tells a different story, with 8.42% of vessels on order choosing to install ESDs. The proportion of vessels on the orderbook fitted with a particular device is between two and six times higher than for those vessels already in service.
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