甘肃张掖电厂扩建煤电750千伏送出工程一阶段投运

Core Insights - The successful commissioning of the first phase of the Gansu Zhangye Power Plant's expansion project marks a significant milestone in the construction of a key support project for the Gansu "14th Five-Year Plan" and the development of the Hexi Corridor clean energy base [1][2] Group 1: Project Overview - The Gansu Zhangye Power Plant expansion project involves a 750 kV transmission line that spans 80.51 kilometers, connecting the Zhangye Power Plant to the Zhangye Ganzu 750 kV substation [1] - The project includes the construction of 169 new transmission towers and the expansion of two outgoing line intervals, increasing the transmission capacity by over 4,000 MW [1] - The project will provide reliable peak regulation and compensation support for over 4.86 million kW of new energy installations in the Zhangye region, excluding 1.57 million kW of energy storage [1] Group 2: Technological Innovation - The project employs an innovative "one pull six" tensioning and wire-laying technique, which allows for the simultaneous deployment of six sub-conductors, enhancing construction efficiency by 30% compared to traditional methods [1] Group 3: Economic Impact - The completion of this transmission corridor will strengthen the grid's role as a hub for energy resource allocation, facilitating large-scale development and efficient consumption of renewable energy in the Hexi region [2] - It is expected to play a crucial role in ensuring the safe and stable operation of the direct current system during peak load periods, thereby supporting the central Gansu power grid and promoting local economic development [2]