The highest 750 kV ultra-high voltage substation in China has been put into operation
On the 15th, it was learned from the National Energy Group that the Spruce Substation, located at an altitude of 3365 meters in Tongde County, Qinghai Province, has been put into operation. This is also the highest 750 kV ultra-high voltage substation in China.
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![The highest 750 kV ultra-high voltage substation in China has been put into operation](https://a5qu.com/upload/images/261149e9aa18a0e0ce6caa969da8e5f3.jpg)
The substation put into operation this time is an important power source for the Qinghai Henan ultra-high voltage direct current transmission project, and also the highest 750 kV ultra-high voltage substation in China. By increasing the voltage level from 330 kV to 750 kV, the maximum transmission power has been increased by 3-4 times. After being put into operation, clean electric energy such as electricity and new energy can be transmitted to the outside world in areas such as Marduan, Ningmute, Erduo, Guoluo, and Tongde, providing strong power support for the "Qingyu DC" project.
Gu Invention, Deputy Director of the Mechanical and Electrical Center of the Qinghai Ma'ergan Hydropower Station of the National Energy Group: The operation of the substation can transmit about 15 billion kilowatt hours of clean electricity annually, better meeting the needs of optimizing the utilization of water resources and developing clean energy in the upper reaches of the Yellow River.
![The highest 750 kV ultra-high voltage substation in China has been put into operation](https://a5qu.com/upload/images/f9180578425d98a056410afa107dff44.jpg)
The reporter learned that the Qinghai Henan ultra-high voltage direct current transmission project is the world's first long-distance transmission channel specifically designed for the transmission of clean energy. It passes through four provinces, Qinghai, Gansu, Shaanxi, and Henan, with a total length of 1578 kilometers. It can input 40 billion kilowatt hours of clean electricity into central China each year, transforming one eighth of the total electricity consumption in Henan into clean electricity, equivalent to replacing 18 million tons of raw coal, reducing 14000 tons of smoke and dust, 90000 tons of sulfur dioxide, and 29.6 million tons of carbon dioxide.