China has successfully installed the “Three Gorges Pilot,” the world’s largest single-unit floating offshore wind turbine, located 70 kilometers off the coast of Guangdong Province. With a massive 16-megawatt capacity, this engineering feat utilizes a semi-submersible platform and an innovative mooring system to harness stronger winds in deep-sea environments. Standing over 270 meters tall, the turbine is designed to withstand extreme marine conditions while generating enough renewable energy to power approximately 24,000 households annually, marking a significant advancement in global offshore wind technology.
The installation of the 16 MW turbine represents a major leap in deep-water renewable energy. The structure features a rotor diameter of approximately 252 meters, covering an aerial area equivalent to seven football fields. Reaching a total height of over 270 meters, the turbine is significantly more efficient than traditional near-shore models. Its massive scale allows it to capture vast amounts of wind energy, positioning it as one of the most powerful offshore systems currently in operation.
The system is supported by a semi-submersible floating platform measuring 80.82 meters in length and 91 meters in width. Weighing roughly 24,100 tons, the platform maintains stability in the open sea through a complex mooring configuration. Unlike fixed-bottom turbines, this unit is secured by nine suction anchors connected by a hybrid system of high-strength polyester fiber cables and traditional anchor chains. This setup acts as a mechanical “spring,” allowing the turbine to adapt to fluctuating waves and currents while remaining securely positioned in deep waters where the seabed is otherwise unsuitable for permanent foundations.
Engineers from the China Three Gorges Corporation (CTG) implemented several pioneering technologies to ensure the turbine’s durability in harsh environments. These include a dynamic monitoring system, an active ballast system, and the first use of 66 kV dynamic submarine cables in China. According to Pan Hongguan, an offshore wind power engineer at CTG, the new mooring design significantly enhances flexibility and mechanical performance, effectively absorbing the physical stress caused by wind and waves to extend the structure’s operational lifespan.
The “Three Gorges Pilot” was fully assembled at Tieshan Port in Beihai before being towed across the Qiongzhou Strait to its deployment site near Yangjiang. Once fully operational, the project is expected to generate 44.65 million kilowatt-hours of clean electricity every year. This output will play a crucial role in reducing CO2 emission levels and fossil fuel dependence. The success of this project underscores China’s strategic shift toward large-scale, deep-water offshore wind farms as a cornerstone of its future energy infrastructure.