en.Wedoany.com Reported - On June 19, the first batch of units of China's largest single-unit capacity plateau mountain wind power project—the expansion project of China Datang Julongliang Wind Farm—successfully achieved grid-connected power generation, marking a new breakthrough in the large-scale application of high-capacity wind power units in high-altitude, cold environments.
Located in Xundian Hui and Yi Autonomous County, Kunming City, Yunnan Province, the project site has an average altitude of 3,239 meters. With a total installed capacity of 158.22 MW, the project is equipped with a 220 kV transmission line spanning approximately 40.271 kilometers, ensuring stable production and efficient delivery of clean wind power.
The 11.1 MW units put into operation this time are custom-developed to adapt to the special environment of plateau mountains. Each unit features a tower height of 125 meters, a rotor diameter of 221 meters, and a swept area equivalent to approximately 5.5 standard football fields, offering outstanding advantages such as high wind energy capture efficiency, strong environmental adaptability, and high intelligence in operation and maintenance. To address challenges such as low air density and strong turbulent winds at high altitudes, the project has carried out specialized optimizations for unit operation algorithms, nacelle temperature control systems, and blade aerodynamic structures, effectively mitigating operational risks like stall and vortex-induced vibration. Considering the differentiated wind speed characteristics of the region, the project has comprehensively optimized unit configuration based on substation access capacity and site conditions, avoiding energy efficiency waste caused by access bottlenecks and ensuring optimal overall power generation benefits. Both unit models of the project have obtained product certifications from authoritative institutions, with excellent tower safety coefficients, fully ensuring equipment quality and long-term operational reliability. This project has accumulated valuable practical experience for China's high-altitude wind power development and will continue to inject green momentum into the construction of China's new energy system.
According to relevant officials, the expansion project of China Datang Julongliang Wind Farm is a key practice for improving the quality and efficiency of plateau mountain wind power, helping to accelerate China's onshore wind power industry toward a new stage of high-quality development characterized by scale, efficiency, and low cost. Once fully completed and put into operation, the project is expected to generate an annual on-grid electricity output of 462 million kWh, saving 140,000 tons of standard coal and reducing carbon dioxide emissions by 380,000 tons each year. This can meet the annual electricity needs of 180,000 three-person households, playing a significant role in optimizing the regional energy supply structure and promoting green and low-carbon development.
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