国内首座500千伏全自主可控新一代变电站在辽投运

Core Insights - The first fully domestically controlled 500 kV substation in China, the Tieling Power Transmission and Transformation Project, has officially commenced operation, marking a significant step in Liaoning's energy transition and new power system construction [1][2] Group 1: Project Overview - The Tieling substation is located in a resource-rich area for wind and solar energy in northern Liaoning, contributing to the province's renewable energy development [1] - The project includes the 500 kV Tieling-Shiling line and the 500 kV Xiquan substation, with a total line length of 320 kilometers and the construction of 825 new towers [1] - The substation is equipped with two 1.2 million kVA transformers and will have 2 outgoing lines at 500 kV and 5 outgoing lines at 220 kV [1] Group 2: Environmental Impact - The project is expected to increase clean energy consumption by over 3 billion kWh annually, equivalent to a reduction of 900,000 tons of standard coal consumption [1] - It will meet the grid connection needs of over 2 million kW of wind and solar power generation, significantly promoting renewable energy construction in northern Liaoning [1] Group 3: Technological Innovation - The Xiquan substation has successfully applied 16 types of original technological achievements, addressing challenges related to the economic efficiency, stability, and safety of renewable energy grids [2] - This project has been recognized as a technology demonstration project by the State Grid Corporation of China and serves as a model for similar regions to solve renewable energy consumption issues [2]