en.Wedoany.com Reported - The Jinchuan Hydropower Station on the Dadu River in Sichuan Province recently reached a significant construction milestone—the first batch of generating units (Units 4, 3, and 2) successfully passed start-up acceptance, marking a breakthrough phase achievement for the project and officially starting the countdown to power generation. 
Located in Jinchuan County, Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province, the Jinchuan Hydropower Station is the 6th cascade station in the 28-stage development plan for the main stream of the Dadu River. It has a total installed capacity of 860 MW, equipped with four 215 MW Francis turbine-generator units. The station features prominent technical challenges, with the dam site situated on a deep overburden layer over 100 meters thick. With a dam height of 112 meters, it is a typical project in China for constructing concrete-faced rockfill dams under such geological conditions.
As a key project participant, PowerChina Guiyang Engineering Corporation undertook the supervision of works including the diversion tunnel, flood discharge and emptying tunnel, dam and spillway, curtain grouting and cutoff wall, and safety monitoring of key structures. The project faced complex engineering geology, high slope construction risks, a dam located in a deep overburden area, and significant challenges in coordinating cross-construction activities. The supervision team performed their duties proactively, closely monitored critical milestones, and strictly implemented quality and safety on-site supervision alongside schedule closed-loop control responsibilities, providing engineering assurance for the units' on-schedule commissioning.
Once fully operational, the station will provide approximately 3.5 billion kWh of clean electricity annually, equivalent to reducing coal consumption by about 1.07 million tons and cutting carbon dioxide emissions by roughly 3.22 million tons per year. The Jinchuan Hydropower Station is a key project for China Energy's hydropower development on the Dadu River basin and an important component of Sichuan Province's "14th Five-Year Plan" for energy development. It holds significant importance for optimizing Sichuan's energy structure, enhancing clean energy supply capacity, and serving the "dual carbon" strategy.
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