Maersk is piloting a battery system to improve vessel performance and reliability while reducing CO2 emissions. “This trial will provide a greater understanding of energy storage that will support Maersk in moving towards further electrification of its fleet and port terminals. Maersk will continue to facilitate, test, and develop low-carbon solutions on our journey to become carbon neutral by 2050,” explains Søren Toft, Maersk COO.
Propelling marine vessels with battery power alone is still years away from being a technically- and economically viable option. However marine battery systems can be used to improve the efficiency of a vessel’s onboard electrical systems such as the Maersk Cape Town’s generators. By maintaining the vessel’s auxiliary generators at a more optimal load, and avoiding running generators when not needed, overall fuel consumption can be reduced.
The Maersk Cape Town includes a waste heat recovery system, which is a special feature of many Maersk container vessels. This system increases overall efficiency, as it allows the batteries to charge by capturing electrical energy from heat that would otherwise have been lost out of the exhaust gas system for the main propulsion.