中国水利水电第四工程局有限公司(简称“水电四局”)6月3日发布消息称，由该局第一分局承建的中国西部装机容量最大的抽水蓄能电站——哇让抽水蓄能电站建设从施工准备全面转入主体工程建设期。

On June 3rd, China Water Conservancy and Electric Power Fourth Engineering Bureau Co., Ltd. (referred to as "Hydroelectric Fourth Bureau") released a statement saying that the construction of the Wajian Pumped Storage Power Station, the largest pumped storage power station in western China in terms of installed capacity, has shifted from the construction preparation stage to the main construction period under the supervision of the first branch of the bureau.

哇让抽水蓄能电站坐落于青海省海南藏族自治州贵南县境内，于2023年8月正式开工建设，总投资达159.4亿元，总装机容量280万千瓦。

The Wailian Pumped Storage Power Station is located in Guinan County, Hainan Prefecture, Qinghai Province. It officially started construction in August 2023, with a total investment of 15.94 billion yuan and a total installed capacity of 28 million kilowatts.

项目整体建设周期约8年，计划2030年9月实现首台机组发电，2031年12月全面并网投产。据测算，电站投运后，每年可替代燃煤消耗182万吨，减少二氧化碳排放455万吨。

The overall construction period of the project is approximately 8 years. It is planned to start generating electricity with the first unit in September 2030, and achieve full grid connection and commissioning in December 2031. According to calculations, after the power station is put into operation, it can replace 1.82 million tons of coal consumption annually and reduce carbon dioxide emissions by 4.55 million tons.

电站主体工程涵盖上水库、下水库进出水口、输水系统、地下厂房及地面开关站等核心设施，投运后可全面发挥储能、调峰、填谷、调频、调相及电网紧急事故备用等重要作用，为区域风电、光伏等新能源大规模消纳提供保障。

The main construction of the power station includes the upper reservoir, the intake and outlet structures of the lower reservoir, the water transmission system, the underground powerhouse, and the ground switch station, among other core facilities. Once put into operation, it will fully exert its functions such as energy storage, peak load regulation, valley filling, frequency regulation, phase adjustment, and emergency backup for the power grid, providing a guarantee for the large-scale consumption of new energy sources like wind power and photovoltaic power in the region.

本次贯通移交的通风兼安全洞是电站建设的关键先导工程，施工过程中面临涌水、断层破碎带、软弱夹层等不良地质难题，技术难度大、安全防控风险高，对此施工团队全程依托超前地质预报技术，逐项破解难题，顺利完成隧道贯通移交。

The ventilation and safety tunnel that was completed and handed over this time is a key pioneering project in the construction of the power station. During the construction process, it encountered various adverse geological problems such as water gushing, fractured zones, and weak interlayers. The technical difficulty was high and the safety control risks were also significant. To overcome these challenges, the construction team relied on advanced geological prediction technology throughout the process and solved each problem one by one, successfully completing the tunnel's completion and handover.