The capacity expansion project of main transformer at the 500-kilovolt (kV) Shangdang Substation in Zhenjiang, Jiangsu Province was officially put into operation on 16 December, marking the completion of all major projects aimed at addressing the 2024 winter peak load in Jiangsu Power Grid.
State Grid Jiangsu Electric Power Co Ltd Planning Division of the Construction Department Head, Chen Songtao stated that the full operation of 10 key winter peak load projects has significantly enhanced the province’s grid network structure.
He explained that these upgrades meet the growing demand for large-scale grid connections for new energy northern Jiangsu and strengthen the power supply in southern Jiangsu.
“It will effectively ensure the safe and reliable electricity use of enterprises and residents in Jiangsu during the winter,” said Chen.
The company has also intensified control over crucial grid project nodes and refined its management to ensure these projects were operational before the peak of winter electricity demand.
From January to November Jiangsu’s social electricity consumption reached 773.949 billion kilowatt-hours (kWh), a year-on-year (YoY) increase of 8.99%. For instance, in Zhenjiang, electricity consumption increased by 7.58%, reaching 29.838 billion kWh.
To support this rise in demand, the Shangdang Substation project, which began in May, expanded the capacity of the number one main transformer from 750 to 1,000 megavolt-amperes. This increase in capacity is expected to meet the electricity needs of 3.3 million households, ensuring a steady power supply for Zhenjiang this winter.
Additionally, the 500-kV Haiyang Transmission and Transformation Project in Taizhou was the first major winter peak load project to be completed this year. As part of Jiangsu Power Grid’s 14th Five-Year Plan, this substation will provide reliable electricity for about 4.38 million households annually.
