Core Viewpoint - The construction of the second phase of the Zhejiang San'ao Nuclear Power Project has officially commenced with the pouring of the first concrete for Unit 3, marking a significant milestone in the project [1][3]. Group 1: Project Overview - The San'ao Nuclear Power Project is the first nuclear power project in China with private capital participation. The newly started Unit 3 is approved by the state and utilizes the "Hualong One" third-generation nuclear technology [3]. - Upon completion, Unit 3 is expected to generate an annual electricity output of 100 billion kilowatt-hours, sufficient to meet the annual electricity needs of approximately 1 million people, thereby supporting the economic and social development of the Yangtze River Delta region with clean energy [3]. Group 2: Construction Details - The total volume of concrete to be poured for this phase is approximately 8,820 cubic meters (excluding the volume of rebar), with the pouring process expected to last for 57 hours [3]. - The project team has implemented various advanced technologies and optimized designs to ensure high-quality progress at critical milestones. Innovations include modular retaining walls and post-pour methods, with plans to introduce 18 additional advanced construction techniques [3]. Group 3: Current Status of the Project - The overall construction of the San'ao Nuclear Power Project is progressing smoothly. Unit 1 has completed the nuclear safety inspection and is entering the fuel loading preparation stage, while Unit 2 is currently in the hot testing preparation phase, focusing on system debugging and equipment installation [3].

Core Insights - The Zhejiang San'ao Nuclear Power Project's Unit 3 has commenced the first concrete pouring for the nuclear island, marking the official start of the main construction phase [1] - This project is notable as the first nuclear power project in China with private capital participation, utilizing the "Hualong One" third-generation nuclear technology [1] - Upon completion, the unit is expected to generate an annual electricity output of 10 billion kilowatt-hours, sufficient to meet the annual electricity needs of approximately 1 million people [1] Group 1 - The total volume of concrete for this pouring is approximately 8,820 cubic meters, expected to last for 57 hours [1] - The project team has implemented various advanced technologies and optimized designs to ensure high-quality progress at critical milestones [1] - Innovative construction techniques such as modular retaining walls and post-embedded methods have been successfully applied, with plans to introduce 18 additional advanced construction technologies [1][2] Group 2 - A significant innovation in this construction is the use of removable prefabricated retaining wall structures, which is the first application of this technology in the "Hualong One" units [2] - The retaining wall, measuring approximately 62 meters in length, has led to cost savings of about 800,000 yuan and a reduction in construction time by approximately 10 days [2] - The project is progressing well, with Unit 1 having completed nuclear safety checks and entering the fuel loading preparation phase, while Unit 2 is in the hot testing preparation stage [2]

Core Points - The Zhejiang San'ao Nuclear Power Project's Unit 3 has officially commenced construction with the first concrete pour for the nuclear island, marking a significant milestone for the project [1][3] - This project is notable as it is the first nuclear power project in China with private capital participation [1] - The overall construction of the project is progressing smoothly, with Unit 1 having completed pre-fuel safety inspections and entering the fuel loading preparation phase, while Unit 2 is in the hot testing preparation stage [1] Project Details - The concrete pour for Unit 3 involves approximately 8,820 cubic meters of concrete and is expected to last for 57 hours [3] - The project team has implemented several advanced technologies and innovative construction processes, including modular retaining walls and post-application methods for the foundation pit [3] - The modular retaining wall, which is a first for the "Hualong One" reactor design, measures about 62 meters in length and has been designed for efficient site utilization, saving approximately 800,000 RMB in costs and reducing the construction period by about 10 days compared to traditional methods [3] Technical Specifications - Unit 3 is expected to generate an annual electricity output of 1 million kilowatt-hours, sufficient to meet the annual electricity needs of approximately 1 million people [1]