ABS has awarded approval in principle (AiP) to Daewoo Shipbuilding & Marine Engineering (DSME) for its hybrid power system for use on LNG carriers
The hybrid power system configuration includes an energy storage system (ESS) and shaft generator within an existing power source that will allow LNG carriers to use battery power when needed for spinning reserve or peak shaving to improve efficiency and fuel consumption.
The hybrid system was tested for application on LNG carriers at the South Korean shipbuilder’s ship research and development facility. Such technology is already in use on smaller vessels such as ferries.
With the AiP from ABS, it is now possible to reduce dependence on the generator engine and improve fuel efficiency by including a solution that can improve the performance of the DSME shaft generator. The approval process included a review of the ship’s internal arrangement, function, risk analysis and operation scenarios reflecting actual electrical loads.
“Hybrid electric power systems offer the opportunity to improve safety, reliability, operational efficiency and reduce the fuel consumption, environmental footprint and equipment maintenance when compared with traditional electrical power systems,” said ABS vice president of technology Gareth Burton. “Being able to apply hybrid power systems to large vessels like LNG carriers is another step forward in the drive to meet IMO sustainability goals,” said Mr Burton.
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