The first hybrid tug in China, the Qingdao Port Barge Branch 5200 oil-electric hybrid intelligent tug, is equipped with SETH's cutting-edge S-Hybrid-R hybrid power system, which utilizes DC networking technology. This system is specifically designed to meet the unique operational demands of tugboats and stands as a flagship demonstration project in Shandong Province.

The vessel's comprehensive system is outfitted with a robust lithium iron phosphate battery pack exceeding 2500kWh in capacity. This is seamlessly integrated with SETH's proprietary centralized DC-Link system, which facilitates grid-connected power supply. The system propels two reversible shaft motors and operates in tandem with the main engine and rudder paddle. SETH's innovative S-Hybrid-R hybrid power system has been meticulously designed to align with the operational nuances of port tugs, balancing the imperatives of energy conservation, emission reduction, and sustained operational capability. It adeptly caters to the multifunctional and enduring operational requirements of Qingdao Port's tugs. This system marks a significant milestone in the realm of new energy hybrid power for domestic port tugs and represents a pioneering application of domestic frequency converter in tug market.