Recently, Guizhou province transformed a hillside into what’s being dubbed a ‘giant power bank,’ drawing widespread attention. In reality, this project is a large-scale pumped-storage hydropower station. It leverages the elevation difference between two reservoirs: during periods of surplus electricity, water is pumped from the lower reservoir to the upper one for storage; during peak demand or power shortages, the stored water is released to generate electricity—effectively ‘storing’ and ‘releasing’ energy. This technology, often referred to as a ‘physical battery,’ offers significant advantages including high storage capacity, long service life, and enhanced safety. Guizhou’s mountainous terrain and abundant water resources make it ideally suited for such facilities. Beyond improving grid flexibility and peak-load regulation, the station also helps integrate intermittent renewable sources like wind and solar power, supporting China’s dual carbon goals. Once fully operational, this ‘hillside power bank’ will serve as a key green energy hub in Southwest China, providing stable support to the regional power system.
贵州近日将一座山坡改造成‘巨型充电宝’，引发广泛关注。这一项目实际上是一座大型抽水蓄能电站，利用山体高差，在电力富余时将下水库的水抽到上水库储存；在用电高峰或电力短缺时，再放水发电，实现电能的‘存储’与‘释放’。这种技术被称为‘物理电池’，具有储能容量大、寿命长、安全性高等优势。贵州地形多山，水能资源丰富，非常适合建设此类设施。该电站不仅有助于提升电网调峰能力，还能促进风电、光伏等间歇性可再生能源的消纳，助力实现‘双碳’目标。这座‘山坡充电宝’建成后，将成为西南地区重要的绿色能源调节枢纽，为区域电力系统提供稳定支撑。
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