Shaanxi will build 9 UHV projects by 2020

Up to now, the power transmission scale of Shaanxi Power Grid has reached 11.71 million kilowatts, and the accumulated power transmission is 322.6 billion kWh, which is equivalent to the annual output of 12 million tons of coal, and the average annual power transmission has reached a quarter of the annual power generation capacity. 1. The radiation range covers Sichuan-Chongqing, North China and East China power grids.

By 2020, Shaanxi will build 9 UHV projects, including 5 transit projects, and the newly added external power transmission capacity will reach 36.11 million kilowatts.

On November 5, the main part of the 500kV AC transmission and transformation project from Jinjie and Fugu Power Plants connecting Shaanxi and North China Power Grid was officially completed. According to Zhou Haihong, deputy general manager of the construction branch of State Grid Shaanxi Electric Power Company, after the completion of the project, the two power plants will each add a 500 kV transmission channel, which means that the annual output of our province will increase from 35 billion kwh to 50 billion kilowatt-hours is equivalent to 6 million tons of coal sent out every year. The project will also alleviate environmental pollution in our province and North China, and further adjust our province's energy structure.

Northern Shaanxi, where "Wujin" is everywhere and the "oil waves" are rolling, has the country's only national energy and chemical industry base-Northern Shaanxi Energy and Chemical Base. About three-quarters of the coal produced here is transported outwards by rail and road, accounting for 10% of the country's total coal consumption. Coal transportation occupies a large amount of railway and highway resources, and the contradiction between coal and electricity transportation needs to be resolved urgently. Therefore, the power transmission of Shaanxi Province has become a breakthrough point for the transformation and development of the energy base in northern Shaanxi and a good recipe for the sustainable development of Shaanxi energy and power.

In June 2017, the Shaanxi section of the Yuheng-Weifang 1000 kV UHV AC transmission and transformation project, the UHV AC project with the longest transmission distance in the world so far, was completed. On October 24, 2018, Unit 1 of Yulin Zhaoshipan Power Plant was successfully connected to the grid for power generation, which marked the official transmission of Shaanxi UHV power. On November 9, 2018, Unit 2 of Shaanxi Yuneng Hengshan Power Plant was also successfully connected to the grid for power generation, becoming the first UHV power channel for energy transmission across Shaanxi, Shanxi, Hebei, and Shandong provinces. One of the important power sources of the "Blue Sky Plan" and the "West-East Power Transmission" strategy. In 2019, Shaanxi completed the second 750 kV transmission channel from northern Shaanxi to Guanzhong, which greatly promoted the development of wind power and solar clean energy and the upgrading of the energy industry in northern Shaanxi.

Shaanxi Power Grid is in the hub position of power transmission from west to east and connecting northwest, central and north China power grids. At present, in addition to the 1,000 kV Yuheng-Weifang UHV transmission project that directly transmits power to the North China Power Grid, the Shaanxi Power Grid has built 4 750 kV lines to connect to the Northwest Main Grid, and pass the Lingbao (Henan) DC back-to-back transmission channel, The ±500kV DC transmission channel from Deyang, Sichuan to Baoji is connected to the Central China Power Grid, and another 500kV DC transmission channel from Yulin Shenmu (Fugu) to Hebei is connected to the North China Power Grid. As a major energy province, Shaanxi’s total installed power generation capacity is planned to reach 76.95 million kilowatts by 2020.

In recent years, through the dense power flow economic network of our province, the coal resources and abundant wind energy and solar energy resources in northern Shaanxi have been continuously sent to all directions along with the power channel. At the same time, the power transmission has also become the promotion of the development of the "three economies" in our province. Important gripper.

Up to now, the power transmission scale of Shaanxi Power Grid has reached 11.71 million kilowatts, and the accumulated power transmission is 322.6 billion kWh, which is equivalent to the annual output of 12 million tons of coal, and the average annual power transmission has reached a quarter of the annual power generation capacity. 1. The radiation range covers Sichuan-Chongqing, North China and East China power grids.

The reporter learned that by 2020, Shaanxi will complete 9 UHV projects, including 5 transit projects, and the newly added power transmission capacity will reach 36.11 million kilowatts. At that time, the Shaanxi Power Grid will build a "one cross and six direct" UHV external interconnection channels, which will integrate into the national large power grid at a higher level, creating conditions for integration into the global energy Internet.