Hami South-Zhengzhou ± 800kV UHVDC Project

As a core component of the "Xinjiang Power Transmission to Other Regions Initiative" and a pivotal energy artery in China's national energy allocation system, the Hami South-Zhengzhou ±800kV Ultra-High Voltage Direct Current (UHV DC) Transmission Project plays a critical role in bridging western energy resources with eastern power demands. In December 2012, . Guangdong Xinyuan Hengye Power Transmission Device Co., Ltd. actively participated in Packages 16-18 of this landmark project.

Project Overview

Originating from the Hami Southern Energy Base in Xinjiang and terminating in Zhengzhou, Henan, the project spans six provinces/autonomous regions (Xinjiang, Gansu, Ningxia, Shaanxi, Shanxi, and Henan) with a total length of 2,210 km. As a key passage for Xinjiang's power transmission via Ningxia under China's 12th Five-Year Plan, it undertakes the task of bundling thermal power and wind power from Xinjiang for long-distance delivery, facilitating efficient alignment between western energy resources and central/eastern power demands.

Key Milestones & Technical Specifications

· Investment: ¥23.39 billion

· Construction Timeline: Commenced in May 2012; commissioned on January 27, 2014, after nearly two years of construction.

· Transmission Capacity: Rated at 8 million kW (±800kV), it delivers 37 billion kWh of electricity annually to the Central Plains region. This is equivalent to reducing 12.28 million tons of standard coal consumption and 34 million tons of CO₂ emissions annually.

· Strategic Significance: As a successor to the Ningdong-Shandong ±660kV DC project, it marks a substantial and crucial step forward in China's "Xinjiang Power Transmission to Other Regions" strategy, enhancing energy resource optimization across the country.

Long-Term Impact

By 00:00 on December 2, 2024, the project had cumulatively transmitted 41.236 billion kWh of electricity through DC transmission, ensuring stable power supply in central/eastern China while supporting national carbon neutrality goals. Its

success underscores China's leadership in UHV technology and sustainable energy development

Hami Tianshan Exchange Station; Source: Hami Zero Distance