哈密—重庆±800千伏特高压直流输电工程

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哈密—重庆±800千伏特高压直流输电工程投产
Ke Ji Ri Bao· 2025-07-22 00:06
Core Insights - The Hami-Chongqing ±800 kV UHVDC project has been put into operation, marking a significant milestone for China's energy infrastructure, particularly in the context of renewable energy transmission and carbon neutrality goals [1][2] Group 1: Project Overview - The Hami-Chongqing project is China's first UHVDC project for sending electricity from a desert renewable energy base, enhancing energy resource development and transmission from Hami [1] - The project spans 2260 kilometers, with a total investment of 28.6 billion yuan, and features a rated voltage of ±800 kV and a capacity of 8 million kW [1] - It supports over 10 million kW of renewable energy transmission from Hami, contributing to a larger scale of over 30 million kW for external transmission from Xinjiang [2] Group 2: Technical and Environmental Challenges - The construction faced significant challenges, including harsh environmental conditions and complex terrain, requiring innovative engineering solutions [2] - New designs were implemented to address high wind areas and corrosive environments, including the use of silane impregnation for corrosion protection [2] - The project aims to enhance the utilization of renewable energy and improve the power supply capacity for Chongqing, especially during peak summer loads [1][2]
0.007秒能干啥?新疆的电“闪送”到重庆!
Xin Hua She· 2025-06-10 07:56
Core Insights - The Hami-Chongqing ±800 kV UHVDC project is a significant infrastructure development that enables the transmission of electricity over a distance of 2260 kilometers, facilitating the transfer of energy from Xinjiang to Chongqing in just 0.007 seconds [3][5]. Group 1: Project Overview - The Hami-Chongqing ±800 kV UHVDC project is the first UHVDC project connecting Northwest to Southwest China, starting from the Barkol Converter Station in Hami, Xinjiang, and ending at the Yubei Converter Station in Chongqing [5]. - The project is designed to support a total installed capacity of 14.2 million kW, with over 70% of this capacity coming from wind, solar, and thermal energy sources, setting a new record for similar projects [7]. Group 2: Energy Impact - The project is expected to deliver over 36 billion kWh of electricity annually to Chongqing, with approximately half of this coming from renewable energy sources, which equates to a reduction of about 6 million tons of coal consumption each year [7]. - The two converter stations are crucial for the "Xinjiang electricity into Chongqing" initiative, enabling large-scale and long-distance transfer of renewable energy while maintaining the stability of power supply by controlling fluctuations within 5% [9]. Group 3: Resource Potential - Xinjiang has a technical potential for wind energy of 780 million kW, accounting for 17% of the national total, and a solar energy potential of 1.6 trillion kWh, representing 40% of the national total, indicating a vast untapped resource [11]. - The UHVDC project addresses the energy supply and carbon reduction pressures faced by central and eastern provinces, making it a key solution for balancing energy distribution across regions [11]. Group 4: Historical Context - Since 2010, Xinjiang has exported over 900 billion kWh of electricity through two AC and two UHVDC channels, with approximately 30% of this being renewable energy, benefiting local communities [13].