投资超156亿元跨省三项网间电力互济工程获批建设

Core Points - The three interconnection projects, Xiang-Qian, Xiang-Yue, and Yu-Qian, have been approved for construction, with a total investment expected to exceed 15.6 billion RMB [1] - After completion, the number of transmission channels between the two major power grid companies, Southern Power Grid and State Grid, will increase from 2 to 5, significantly enhancing cross-province and cross-region power exchange capabilities [1] - The projects are scheduled to start construction by the end of this year and be operational before the summer peak in 2027, with a maximum transmission capacity of 9 million kilowatts [1] Project Details - The projects will involve the construction of three flexible DC back-to-back converter stations, each with a capacity of 3 million kilowatts, located in Tongren, Guizhou; Chenzhou, Hunan; and Chongqing [1] - Supporting line construction will also be undertaken to further improve interconnection levels between the two power grid operating areas [1] - The projects aim to provide a solid physical foundation for normalized electricity trading across grid operating areas [1] Regional Benefits - The Xiang-Qian project will enable peak-shaving power exchange between Hunan, which experiences high summer electricity loads, and Guizhou, which has a "winter high, summer low" load characteristic [2] - In case of extreme weather events, such as high temperatures or severe cold, the Xiang-Qian project will allow for emergency power support from the opposite side, significantly enhancing the grid's disaster response capabilities [2]