Core Points - The Jiangsu province has officially put into operation the 500 kV Zhenjiang Substation's transformer capacity expansion project, adding approximately 500,000 kVA of electricity supply capacity, which will significantly enhance the power supply capability and reliability in the western region of Zhenjiang [1][2] - Jiangsu's electricity demand continues to grow, with a total electricity consumption of 264.1 billion kWh in the first four months of 2025, representing a year-on-year increase of 2.2%. The peak load in the summer of 2025 is expected to reach a new high [1] - The State Grid Jiangsu Electric Power Company is advancing 13 key projects for the main grid and 1,415 projects for the distribution network to enhance the power supply capacity ahead of the summer peak [1] - The Zhenjiang Substation is a key project in the main grid and plays a crucial role in ensuring power supply during peak summer demand. It is the first 500 kV substation in the Zhenjiang area, connecting Nanjing to the west and Changzhou to the east [1][2] Project Details - The Zhenjiang Substation has four main transformers, with the 1st and 2nd transformers having a supply capacity of 750 MVA, which are essential for power supply in the western region of Zhenjiang [2] - The replacement of the 2nd transformer with a domestically produced unit aims to better meet the growing electricity demand, following the upgrade of the 1st transformer last year [2] - During the construction, the project team coordinated with construction and supervision units to manage the large number of workers and work sites, implementing a dust-free construction standard and using monitoring facilities to ensure timely completion of the project [2] - After the capacity expansion, all four main transformers at the 500 kV substations in the Zhenjiang area will be domestically produced, enhancing equipment reliability and supporting the region's economic and social development electricity needs [2]