Core Insights - The 750 kV Guanting-Lanzhou East transmission and transformation demonstration project has been operational for 20 years, having transmitted over 1,500 billion kilowatt-hours of electricity, significantly contributing to the economic and social development in the upper reaches of the Yellow River [1][3]. Group 1 - The project spans 141 kilometers from Guanting Town in Minhe County, Qinghai Province to the Lanzhou East substation in Yuzhong County, Gansu Province, with a designed transmission capacity of 1,500 megavolt-amperes [3]. - Initiated in 2003 and completed in September 2005, the project was developed in response to the saturation of the existing 330 kV grid in Northwest China, which could not meet the demands for long-distance and high-capacity electricity transmission [3]. - The operation of this project has laid the foundation for the initial formation of the 750 kV main grid in Northwest China, facilitating the large-scale development of hydropower and renewable energy sources such as wind and solar [3].
我国首个750千伏输变电工程投运20周年 累计输送电量超1500亿千瓦时
Xin Hua Wang·2025-09-26 11:55