
Carbon-Based Capacitor Energy-Saving Technology Launched in Shenzhen Port
A breakthrough in green port operations has arrived in Shenzhen. With guidance and support from the Shenzhen Municipal Transportation Bureau, China Merchants Port (South China Operations Center) and Shenzhen Tumen New Energy Co., Ltd. have successfully implemented the nation’s first carbon-based capacitor energy-saving technology demonstration project at the Shekou Container Terminal (SCT).
This innovative project marks a major milestone in sustainable port operations. The carbon-based capacitor technology utilizes nano-level activated carbon materials, combining the high power charge-discharge capabilities of capacitors with the high energy storage density of batteries. This hybrid approach makes it particularly well-suited for port cranes, which require short-term, high-frequency, and high-power energy support during daily operations.

The system captures and stores energy generated during crane operations, such as braking or lowering heavy loads, and redistributes it when needed—significantly reducing energy consumption and operational costs, while lowering carbon emissions.
Industry experts believe this advancement sets a new standard for energy efficiency in port logistics, providing a scalable solution for green transformation in maritime infrastructure. It is also expected to inspire further application of new energy storage technologies across ports in China and beyond.
The successful rollout in Shekou not only demonstrates Shenzhen’s commitment to innovation and sustainability but also highlights the city’s role as a leader in smart port development within the Greater Bay Area. As global ports face increasing pressure to reduce their environmental footprint, Shenzhen’s pioneering efforts may serve as a blueprint for eco-friendly port modernization worldwide.



