An eco-friendly, people-oriented project fueling the high-quality economic and social development of Shaanxi Province has gone live, opening up a dedicated green corridor to transmit electricity from new energy bases in northern Shaanxi to the central Shaanxi plain.
The 750 kV Third Channel Project from northern Shaanxi to central Shaanxi plain, a landmark mega project featuring the largest investment, longest transmission lines, highest technical difficulty, and largest construction team in the history of State Grid Shaanxi Electric Power Co., Ltd. was put into operation on June 30. Stretching from Shuofang 750 kV Substation in Shenmu County, Yulin City in the north to Bailuyuan 750 kV Substation in Lantian County, Xi’an City in the south, the power project was completed in 22 months.
This project will see Shaanxi’s main power network undergo a major upgrade, delivering markedly improved grid reliability and greater capacity to absorb renewable energy. The power transmission capacity between northern Shaanxi and the central Shaanxi plain is expected to exceed 9 million kw. Annually, the project can cut coal consumption by 7 million tons and slash carbon emissions by 14 million tons — equivalent to planting 760 million trees.
As a demonstration project for the large-scale deployment of domestically developed high-end power equipment, this project marks China’s first trial application of domestic-made closing resistors at the 750 kV level. It boosts China’s self-reliance on core high-end power components, drives the iterative upgrading of China’s power equipment industrial chain, and improve China’s strength in power technology.
Spanning 18 districts and counties across Shaanxi Province, the project traverses areas with complex meteorological and topographical conditions. State Grid Shaanxi Electric Power overcame many challenges to complete the project on time. Its construction features an industry-leading mechanization rate, application of big data and AI technologies, and intelligent and precise whole-process management.
"After the project goes into operation, new energy bases in northern Shaanxi will gain an additional annual power transmission capacity of 18 billion kWh. This will improve the power supply mix in the central Shaanxi plain and enable hydropower and pumped storage power stations in southern Shaanxi to participate in peak shaving," said Zhao Yingbo, director of the Construction Department at State Grid Shaanxi Electric Power.
This project will meet the rising electricity demand of the urban agglomeration in central Shaanxi plain, and also deliver clean power to central and eastern China. It accelerates Shaanxi’s integration into the unified national power market and contributes to the realization of China’s carbon peaking and neutrality goals.
