亦庄500千伏变电站竣工投产，满足高精尖产业用电需求

Core Viewpoint - The completion of the Yizhuang 500 kV substation marks the successful conclusion of Beijing's "14th Five-Year Plan" for power grid construction, enhancing the reliability and capacity of the electricity supply in the region [1][3]. Group 1: Project Overview - The Yizhuang 500 kV substation, located in the Yizhuang load center, began construction in June 2023 and is a key project under Beijing's "3 100" initiative [3]. - The substation is equipped with two 1.2 million kVA transformers, adding 2.4 million kVA of power supply capacity to the Beijing grid [3]. - It serves as a crucial hub for clean energy from Inner Mongolia and connects to the 1000 kV ultra-high voltage transmission line, improving the resilience and external power receiving capacity of Beijing's grid [3]. Group 2: Demand and Capacity Growth - The maximum load in Yizhuang during the "14th Five-Year Plan" reached 1.766 million kW, an increase of 595,000 kW (50.81%) compared to the maximum load of 1.171 million kW during the "13th Five-Year Plan" [4]. - The construction of the Yizhuang 500 kV substation coincides with the rapid growth in electricity demand due to the acceleration of the Beijing International Science and Technology Innovation Center and the continuous upgrade of the Yizhuang industry [4]. - Since 2021, State Grid Beijing Electric Power has been advancing the planning and construction of the power grid at all voltage levels in Yizhuang, establishing a main grid framework of "1+3+10" [4].