ABB will provide the power solution for South Asia’s first LNG hybrid tug Photo: ABB
ABB’s electric propulsion, power, energy storage, control and automation technology will be deployed by the first tug in South Asia capable of switching between LNG engines and zero-emission battery power.
The tug, which will operate in Singapore harbour, has been ordered by Sembcorp Marine subsidiary Jurong Marine Services for delivery from the Sembcorp Marine shipyard by the end of 2020. Through the use of ABB’s Onboard DC Grid, the vessel will be able to deploy 904 kWh of battery power for zero-emission operation as well as for peak shaving.
“This is a breakthrough in the tug market for the ABB’s energy storage technologies and a strong validation of Onboard DC Grid as the ultimate solution for power management efficiency for hybrid propulsion,” said Juha Koskela, managing director, ABB Marine & Ports. “Future-proofing for a different energy mix makes particular sense for tugs and other port service vessels, as the most likely candidates to face imminent environmental restriction.”
Gas-fuelled engines face a particular challenge when it comes to handling the fast-changing load capabilities demanded by tugs. ABB’s system removes the need for the tug’s engines to be tied to a fixed speed against dynamic loads, instead enabling them to provide energy at variable revolutions per minute.
ABB’s scope of supply also includes the DC drives for the PTI/PTO variable speed shaft generator, which integrates with the energy storage battery.