Hami-Chongqing UHVDC project delivers 30 billion kWh to Chongqing

By Deng Rui and Tan Yingzi in Chongqing | chinadaily.com.cn | Updated: 2026-08-03 15:56
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The Hami-Chongqing ±800 kV ultra-high voltage direct current (UHVDC) transmission project has delivered tens of billions of kilowatt-hours of electricity to Chongqing since its completion, playing a crucial role in supporting Chongqing's electricity demands during this summer's peak period, according to State Grid Chongqing Electric Power Company. [Photo by Yu Xinyao/for chinadaily.com.cn]

Harnessing ±800 kV UHVDC technology, the project channels wind and solar power from the Gobi Desert in the Xinjiang Uygur autonomous region. During this summer's peak demand period, its maximum transmission power reached 6 million kilowatts, accounting for about one-fifth of Chongqing's peak electricity needs and significantly easing the strain on the local grid.

State Grid Chongqing Electric Power Company attributes the project's reliable performance to advanced digital operation and maintenance systems, along with seamless coordination between converter stations at both ends of the transmission line. These facets have ensured a stable electricity supply for households and industries during the demanding summer months.

Li Yuan contributed to this story.

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