Recently, the world’s largest power methanol dual-fuel engine, the CMD-Everllence B&W 12G95ME-C10.5-LGIM-EGRTC, built by CSSC Power Group’s subsidiary CSSC-MES Diesel, successfully completed its sea trial.
This main engine is installed on the “OOCL WISDOM,” the world’s first 24,168 TEU ultra-large methanol dual-fuel container ship built by Nantong COSCO KHI Ship Engineering for Orient Overseas, providing strong and stable green power support for this giant vessel.
To ensure the efficient execution of this sea trial mission, CSSC-MES Diesel assembled technical backbone from multiple lines including R&D, electronic control, assembly, and commissioning to form a dedicated sea trial team. The team coordinated the test plan in advance, refined the operation procedures, and reviewed key test nodes one by one. During the sea trial, team members remained at their posts, faced challenges head-on, maintained real-time coordination and close collaboration with all parties at the shipyard, accurately handled various on-site issues, strictly followed test standards to complete all assessment items, and all performance indicators met design requirements, successfully achieving the sea trial objectives, fully demonstrating the team’s strong technical strength and practical work style.
It is understood that the “OOCL WISDOM” is Orient Overseas’ first methanol dual-fuel container ship and the first of seven vessels in the same series. The vessel has an overall length of 399.99 meters, a molded breadth of 61.3 meters, and a molded depth of 33.2 meters. Its deck area is equivalent to 3.5 standard football fields, with a maximum container capacity of 24,168 TEUs, a deadweight of 225,000 tons—comparable in scale to three large nuclear-powered aircraft carriers—and a speed of 22.7 knots. The vessel was delivered and set sail on June 25.
The ship is equipped with a domestically independently integrated methanol-fuel dual-fuel power system, featuring the world’s largest methanol dual-fuel main engine, auxiliary engines, and boiler, allowing flexible switching of fuel modes based on navigation conditions and port environmental requirements. When using green methanol, it can achieve full lifecycle carbon neutrality. It is estimated that a single vessel can reduce carbon dioxide emissions by approximately 150,000 tons per year, equivalent to the carbon sequestration effect of planting 820,000 trees, with near-zero sulfur oxide emissions and significantly reduced nitrogen oxides, easily meeting the world’s most stringent environmental standards.
The successful completion of this sea trial not only demonstrates CSSC Power Group’s manufacturing strength in the field of large green marine power but also marks an important milestone in the industrialization process of China’s high-power methanol fuel engine technology. In the future, CSSC Power Group will continue to break through key core technologies, accelerate digital and intelligent transformation and upgrading, and continuously launch efficient, clean, and energy-saving marine power products to support the green upgrade of the global shipping industry.




