Core Points - The successful installation of the rotor for the first unit (Unit 4) of the Yebatang Hydropower Station marks the full entry into the assembly phase of the project [1][2] - The Yebatang Hydropower Station, located at an average altitude of 3000 meters, is a significant project under China's 14th Five-Year Plan, featuring a dam height of 217 meters and a total installed capacity of 2.24 million kilowatts [2] - The rotor has a diameter of 12.6 meters, a height of 3.2 meters, and a total lifting weight of 1085 tons, making it the heaviest core component in the installation process [2] - The project aims to achieve the first batch of units to be operational by the end of this year, with an average annual power generation of 10.205 billion kilowatt-hours, equivalent to saving 3.99 million tons of standard coal and reducing carbon dioxide emissions by 7.37 million tons [4] - The clean electricity generated will be transmitted to central China through the Jinshang to Hubei ±800 kV DC transmission project, contributing to the country's green and low-carbon energy transition [4]

Core Viewpoint - The Yebatan Hydropower Station, located in the upper reaches of the Jinsha River, has successfully extracted a concrete core sample measuring 38.10 meters, setting a record for similar dam types in China [1][2]. Group 1: Project Overview - The Yebatan Hydropower Station has a total installed capacity of 2.24 million kilowatts and is being developed by China Huadian Corporation [2]. - The dam has a maximum height of 217 meters, making it the highest hyperbolic arch dam under construction in China [2]. - The project is part of the national "14th Five-Year Plan" and serves as a significant project for the "West-East Power Transmission" initiative [6]. Group 2: Construction and Quality Control - The core sample extraction was part of a random sampling process during the dam's construction, spanning 13 pouring units and 12 horizontal construction seams [2]. - The extracted core sample was found to be complete, smooth, and dense, indicating excellent inter-layer bonding and uniform aggregate distribution [2][4]. - Advanced technologies such as intelligent pouring, temperature control, and quality control techniques were employed to mitigate the risk of cracking due to significant temperature fluctuations at the site [4]. Group 3: Environmental Impact and Energy Production - Once fully operational, the Yebatan Hydropower Station is expected to generate an average annual electricity output of 10.205 billion kilowatt-hours [6]. - The project is projected to save 3.99 million tons of standard coal annually and reduce carbon dioxide emissions by 7.37 million tons [6].