8月31，中国能建葛洲坝机电公司承建的世界第一高坝大渡河双江口水电站第三台（4号）机组投产发电至此一期三台机组全部投产发电。

On August 31, the third (4th) unit of the Shuangjiangkou Hydropower Station, the world's highest dam, constructed by China Energy Engineering Group Gezhouba Hydropower Machinery Company, was put into operation and began generating electricity. Thus, all three units of the first phase have been put into operation and generating electricity.

双江口水电站位于四川省阿坝藏族羌族自治州马尔康市、金川县，是国家重点能源项目、大渡河上游控制性水库和龙头电站，功能以发电为主，兼顾防洪。电站大坝是砾石土心墙堆石坝，最大坝高315米，为世界第一高坝。

It is a key national energy project, a control dam on the upper reaches of the Dadu River and a leading power station. Its main function is power generation, while also considering flood control. The dam of the power station is a gravel soil core-wall rockfill dam, with a maximum height of 315 meters, making it the world's highest dam.

电站总装机容量200万千瓦，共装设4台单机容量50万千瓦的立轴混流式水轮发电机组，葛洲坝机电公司承担电站全部发电机组及其辅助设备安装等任务。

The total installed capacity of the power station is 2 million kilowatts. A total of 4 single-unit generators with a capacity of 500,000 kilowatts each, of the vertical-axis mixed-flow type, have been installed. The Gezhouba Electrical Machinery Company is responsible for the installation of all the power generation units and their auxiliary equipment of the power station.

面对工序交叉及高标准技术规范等多重考验，项目团队以安全为基、质量为本，通过精益化施工组织与动态化进度管控，构建起全周期攻坚体系。现场成立党员突击队、组建技术攻关小组，破解关键技术瓶颈，保障各关键节点顺利推进。机组投产各关键节点均经过严格检验，实现三个月内三台机组连续投产。

Facing multiple challenges such as overlapping processes and high-standard technical specifications, the project team took safety as the foundation and quality as the core. Through lean construction organization and dynamic progress control, they established a full-cycle breakthrough system. On-site, a Party member task force was established and a technical research group was formed to solve key technical bottlenecks and ensure the smooth progress of each key node. All key nodes of the unit's commissioning were strictly inspected, and three units were put into operation consecutively within three months.

目前，项目正全力推进最后一台机组调试工作，预计2026年年底实现全容量并网发电。双江口水电站全面投产后，年发电量将超70亿度，预计每年可满足约326万户家庭的全年用电需求，年减排二氧化碳约718万吨，将整体提升大渡河流域防洪、发电综合效益，成为长江上游重要的安全屏障和能源枢纽，在清洁能源供应、绿色转型与区域发展中发挥重要作用。

Currently, the project is making every effort to complete the commissioning of the last unit. It is expected that full-scale grid connection and power generation will be achieved by the end of 2026. After the Dianjiangkou Hydropower Station is fully operational, its annual power generation will exceed 7 billion kilowatt-hours. It is estimated that it can meet the annual electricity demands of approximately 3.26 million households. Annually, it will reduce carbon dioxide emissions by approximately 718,000 tons, thereby enhancing the overall flood control and power generation benefits of the Dagua River Basin. It will become an important safety barrier and energy hub in the upper reaches of the Yangtze River, playing a significant role in clean energy supply, green transformation, and regional development.