Xiluodu-West Zhejiang ±800kV DC Transmission Line Project

The Xiluodu-Zhejiang ±800kV UHVDC Transmission Project, following State Grid Corporation of China's Xiangshang and Jinsu UHVDC projects, stands as another vital clean energy corridor linking China's southwest hydropower base to eastern load centers. Initiated in August 2012, it spans 5 provinces: Sichuan, Guizhou, Hunan, Jiangxi and Zhejiang. In April 2013, Guangdong Xinyuan Hengye Electric Equipment Co., Ltd. took a significant role in the Sichuan section. Officially operational from July 3, 2014, it has strongly advanced the implementation of the "West-to-East Power Transmission" strategy.

Project Overview

As a supporting outward transmission project for hydropower development in the lower reaches of the Jinsha River, the Xiluodu-Zhejiang Project starts at Yibin Shuanglong Converter Station and ends at Zhejiang Jinhua Converter Station, with a total line length of approximately 1,680 kilometers, a total investment of 23.855 billion yuan, and a rated transmission capacity of 8 million kilowatts. Among them, the ±800kV Jinhua Converter Station, a key landing point of the project (As shown in the figure; Zhejiang Electric e-Home), undertakes the critical functions of power conversion and transmission, ensuring the smooth integration of clean hydropower from southwest China into the East China Power Grid.

Strategic Significance

Upon completion, the project has increased the UHVDC transmission capacity of Sichuan hydropower to 21.6 million kW, enabling the annual transmission of approximately 40 billion kWh of clean hydropower from southwest China to load centers in East China. Calculations show this equates to saving 12.28 million tons of standard coal and cutting carbon dioxide emissions by over 34 million tons, delivering remarkable results in optimizing energy structure and advancing energy conservation and emission reduction.

Source: Zhejiang Electric e-Home