en.Wedoany.com Reported - Zhejiang Huadian Wuxijiang Hybrid Pumped Storage Power Station recently officially commenced electromechanical equipment installation. The project's powerhouse excavation work surface has been handed over, and the electromechanical equipment installation engineering has started, marking the halfway point of the construction tasks.
The Wuxijiang Hybrid Pumped Storage Station is a key project in the National Energy Administration's "Medium and Long-Term Development Plan for Pumped Storage (2021-2035)" and a core project of Zhejiang Province's "Thousand Projects and Trillions of Investment" initiative, as well as a key new energy project with significant equity participation from Qujiang Construction Investment Group. Located in the Wuxijiang River basin, a tributary of the upper Qiantang River in Qujiang District, approximately 40 kilometers from downtown Quzhou City, this hybrid pumped storage station has an installed capacity of 298 MW. The total estimated investment for the project is 2.3 billion yuan. It utilizes the existing Hunanzhen Reservoir as the upper reservoir and the existing Huangtankou Reservoir as the lower reservoir.
The core single structure of the station is a shaft-type main powerhouse, which is China's first and currently largest elliptical semi-underground powerhouse. It is also the only hydropower project in eastern China where the entire engineering work is situated in columnar jointed surrounding rock. On April 30, 2026, the powerhouse shaft excavation was completed one month ahead of schedule, achieving zero safety accidents and zero quality hazards, with powerhouse deformation monitoring results not exceeding 8 millimeters.
The completion of the powerhouse excavation cleared the obstacles for electromechanical equipment installation. A person in charge of the Wuxijiang Hybrid Pumped Storage Project stated that in the next step, all participating construction units will work together to vigorously advance the subsequent construction work.
Once the project is completed, the Wuxijiang Hybrid Pumped Storage Station will effectively enhance the peak-shaving and energy storage system of the western Zhejiang power grid, improve the stability of regional power grid supply and the consumption capacity of new energy, and support the realization of Zhejiang Province's "dual carbon" goals. At the same time, the project will be deeply integrated with local tourism and new energy industries, empowering the coordinated development of the region's secondary and tertiary industries. Leveraging this project, Qujiang Construction Investment Group will further integrate diverse new energy sectors such as pumped storage, photovoltaic power generation, and new energy charging, perfecting the green energy industry layout and boosting the construction of a green energy hub in the Quzhou region.
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