Important power grid project in Qinghai put into operation
SOURCE / PRESS RELEASE
Important power grid project in Qinghai put into operation
Published: Jan 16, 2025 05:33 PM
On January 12, the Golog 330 kV second line project was completed and put into operation, achieving a significant milestone for Golog Prefecture of Qinghai Province. This development marks the realization of a 330 kV dual-circuit power supply in the region, which will enhance power supply capacity and quality,and will boost momentum into the local economic and social development of Qinghai this winter and next spring.

The second 330 kV line project in Golog, Qinghai. (Photo by Zhu Yiran)

The second 330 kV line project in Golog, Qinghai. (Photo by Zhu Yiran)

Located in the southeast of Qinghai Province and in the core hinterland of the Sanjiangyuan National Nature Reserve, Golog Prefecture has a permanent population of 222,000, predominantly rural and pastoral residents. With the rapid development of local industries and the sharp increase in clean heating loads, the demand for electricity in the area has been growing stronger.

On December 20, 2024, construction workers of State Grid Qinghai Electric Power Company climbed the tower with oxygen tanks on their backs to carry out tower assembly work for the second 330 kV line project in Golog. (Photo by Zou Jianhua)

On December 20, 2024, construction workers of State Grid Qinghai Electric Power Company climbed the tower with oxygen tanks on their backs to carry out tower assembly work for the second 330 kV line project in Golog. (Photo by Zou Jianhua)


The Golog 330 kV second line project, which officially commenced in August 2023, has successfully navigated through a series of formidable challenges. The project spans 224 km of new lines and 487 towers, passing through four counties in the Hainan and Golog prefectures. The average altitude along the line is 3,700 meters, with an annual average temperature of minus 4 degrees Celsius. The terrain is diverse and challenging, comprising deserts, grasslands, high mountains, swamps, and forests.The project crosses the Yellow River three times and traverses 18 high mountains and ridges above 4,000 meters in altitude. Construction management faced multiple challenges such as high altitude, oxygen deficiency, and logistical difficulties. What's more, the weather at the project site is often changeable and temperatures  are low, two facts that seriously reduce the efficiency of construction equipment and personnel. Because of these conditions, workers had to carry oxygen cylinders to work at high altitudes and take turns to rest every 90 minutes. Due to the fact that many construction sections could not be reached directly by vehicle, builders transported materials by carrying them on their shoulders, setting up cableways, and laying meadows to protect the ecological environment of Sanjiangyuan. 

Despite these challenges, the project was completed and put into operation five months ahead of schedule. This development not only enhances the power grid's carrying capacity and power supply for the Golog region but also optimizes the power grid structure in the upper reaches of the Yellow River, addressing the relative weakness of the local power grid.

Golog 330 kV second circuit project Golog 330 kV substation. (Photo by Zhang Peng)
Golog 330 kV second circuit project Golog 330 kV substation. (Photo by Zhang Peng)

 The successful completion and operation of the Golog 330 kV second circuit project marks a significant advancement in the region's power infrastructure. It will completely address the issue of the relatively weak Golog power grid, ensuring that residents in rural and pastoral areas can fully benefit from the development of the power grid.

 This early completion has led to a notable improvement in the carrying capacity and power supply capacity of the Golog area power grid. As a result, the grid is now better equipped to meet the increasing electricity demands for clean heating transformation and industrial development in the region. This enhancement will not only support the local economy but also contribute to the overall quality of life for the residents of Golog.

In addition to the completion of the second 330 kV line project in Golog, the State Grid Qinghai Electric Power Company is set to complete five grid reinforcement projects in Golog Prefecture in 2024,including the 330 kV Zhique, 110 kV Zhige, and 35 kV Dianzhe transmission and transformation projects. Furthermore, 24 10 kV and below rural power grid consolidation and improvement projects will also be put into operation. These initiatives are all aimed at significantly improving the interconnection capacity and power supply reliability of the Golog power grid, providing robust power support for the clean and low-carbon transformation and high-quality economic and social development of the Sanjiangyuan region.

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