Seatrium deploys LNG tug powered by hybrid system in Singapore

Seatrium has deployed an LNG tug powered by a hybrid system with mtu gas engines from Rolls-Royce in Singapore, Rolls-Royce announced on May 24.

The new 29-meter, 65-tonne bollard pull tug, JMS Sunshine, has been designed, built, and operated by Seatrium. Rolls-Royce supplied two 16-cylinder mtu Series 4000 M55RN gas engines and the gas regulating unit (GRU) for the harbor tug.

According to Rolls-Royce, the mtu gas engines already meet current emission guidelines (such as IMO III) without the need for exhaust gas aftertreatment. The particulate mass is below the detection limit, and they emit only small quantities of nitrogen oxides.

The tug is equipped with a battery capacity of 904 kilowatt-hours. The battery power is used to absorb peak loads, for example, during acceleration, to maneuver purely electrically in port, and to supply the ship with electricity on board.

Rolls-Royce’s Power Systems division has already received orders for mtu gas engines as propulsion systems and onboard gensets for a total of eleven ships worldwide, including ferries, tugs, and government vessels.