6月2日，从水电八局获悉，6月1日，由其承建的广西首座抽水蓄能电站——南宁抽水蓄能电站上水库大坝V期填筑完成，实现全面封顶。

On June 2nd, the Eighth Hydropower Bureau announced that on June 1st, the V-phase filling of the upper reservoir dam of the first pumped storage power station in Guangxi - the Nanning Pumped Storage Power Station - was completed, marking the full topping out of the project.

6月1日，广西首座抽水蓄能电站——南宁抽水蓄能电站上水库大坝V期填筑完成，实现全面封顶。水电八局供图6月1日，广西首座抽水蓄能电站——南宁抽水蓄能电站上水库大坝V期填筑完成，实现全面封顶。水电八局供图抽水蓄能，指的是电力富余时，用电能将水从下水库抽至上水库，将电能转化为水的势能“储存”起来；在电力紧张时，再放水发电，将势能重新转化为电能，反哺电网。

On June 1st, the V-phase filling of the upper reservoir dam of the Nanning Pumped Storage Power Station, the first pumped storage power station in Guangxi, was completed, achieving a full closure. Photos provided by the Eighth Engineering Bureau. On June 1st, the V-phase filling of the upper reservoir dam of the Nanning Pumped Storage Power Station, the first pumped storage power station in Guangxi, was completed, achieving a full closure. Photos provided by the Eighth Engineering Bureau. Pumped storage refers to when there is excess electricity, water is pumped from the lower reservoir to the upper reservoir using electricity, converting the electricity into the potential energy of water for storage; when there is a shortage of electricity, water is released to generate electricity, converting the potential energy back into electricity to feed back to the power grid.

南宁抽水蓄能电站位于广西南宁武鸣区太平镇，巧妙利用群山间400米的自然落差，建设上、下水库及山体内的地下厂房等系统工程。在用电低谷时，它吸纳风电、光伏等富余电力，将水从下水库抽至上水库储存；在用电高峰时，上水库放水发电，每小时可转化为120万千瓦时清洁电能，满足20万户居民一日用电需求，被誉为广西电网的“超级充电宝”。

The Nanning Pumped Storage Power Station is located in Taiping Town, Wuming District, Nanning City, Guangxi Province. It ingeniously utilizes a 400-meter natural drop between the mountains to construct systems such as the upper and lower reservoirs and underground power plants within the mountains. During periods of low electricity demand, it absorbs surplus electricity from sources like wind power and photovoltaics and pumps water from the lower reservoir to the upper reservoir for storage. During peak electricity demand periods, water is released from the upper reservoir to generate electricity, which can be converted into 120 million kilowatt-hours of clean energy per hour, meeting the daily electricity needs of 200,000 households. It is hailed as the "super battery" of the Guangxi power grid.

南宁抽水蓄能电站也是“十四五”期间华南地区首个核准的抽水蓄能项目，总投资约80亿元人民币，共安装4台单机容量30万千瓦的机组。上水库主坝为混凝土面板堆石坝，最大坝高92.5米，坝顶长499.5米，填筑总量585.61万立方米。

The Nanning Pumped Storage Power Station is also the first approved pumped storage project in South China during the "14th Five-Year Plan" period. With a total investment of approximately 8 billion yuan, it is equipped with 4 units with a single-unit capacity of 30 megawatts. The main dam of the upper reservoir is a concrete-faced rockfill dam, with a maximum height of 92.5 meters and a total length of the dam crest at 499.5 meters. The total filling volume is 585.61 million cubic meters.

南宁抽水蓄能电站被誉为广西电网的“超级充电宝”，于2025年12月提前投产发电。水电八局供图南宁抽水蓄能电站被誉为广西电网的“超级充电宝”，于2025年12月提前投产发电。水电八局供图据知，项目团队开展“优化土石方调配快速筑坝关键技术研究”课题，提出“分区开挖、分期填筑”的总体方案。通过抢抓外部协调与内部精心组织，创下单月填筑67.2万立方米的高强度纪录；同时创新采用“大流量抽水+小流量稳压”的蓄水方式，在保障大坝安全稳定的前提下大幅提高了蓄水速度。最终，电站于2025年12月提前投产发电。

The Nanning Pumped Storage Power Station is hailed as the "super battery" of the Guangxi power grid. It is scheduled to go into operation and generate electricity ahead of schedule in December 2025. Photos provided by the Eighth Engineering Bureau. The Nanning Pumped Storage Power Station is hailed as the "super battery" of the Guangxi power grid. It is scheduled to go into operation and generate electricity ahead of schedule in December 2025. Photos provided by the Eighth Engineering Bureau. It is known that the project team carried out the research project "Optimization of Key Technologies for Rapid Dam Construction through Soil and Rock Allocation", proposing a general plan of "separate excavation and staged filling". Through seizing external coordination and meticulous internal organization, they set a high-intensity record of filling 672,000 cubic meters in a single month; at the same time, they innovatively adopted the water storage method of "large flow pumping + small flow stabilization", which significantly increased the water storage speed while ensuring the safety and stability of the dam. Eventually, the power station went into operation and generated electricity ahead of schedule in December 2025.

水电八局相关负责人介绍，自下闸蓄水以来，大坝面板无渗漏点，坝体变形监测和渗水量均满足设计要求，坝体运行安全状态优异，各项监测数据平稳可控。

A relevant official from the Eighth Hydropower Bureau stated that since the water storage began, there have been no leakage points on the dam's surface. The deformation monitoring of the dam body and the seepage volume have all met the design requirements, and the operation safety status of the dam is excellent. All monitoring data are stable and controllable.

值得一提的是，建设过程中，项目团队建成投用了抽水蓄能重卡换电站，每年可节省燃油消耗68万升，并应用了云车平台等新设备，为同类大型工程提供可借鉴的创新实践样本。

It is worth noting that during the construction process, the project team built and put into use a pumped storage heavy truck charging station, which can save 680,000 liters of fuel annually. They also applied new equipment such as the cloud vehicle platform, providing a sample of innovative practices that can be learned from for similar large-scale projects.