An aerial drone photo shows a view of the Zhongning converter station, the sending end of the Ningxia-Hunan ±800 kV ultra-high voltage direct current transmission project in Zhongwei, northwest China's Ningxia Hui Autonomous Region, June 29, 2025.

After a 168-hour trial, the ±800 kV ultra-high voltage direct current transmission project, which brings electricity from northwest China's Ningxia Hui Autonomous Region to central China's Hunan Province, kicked off its official operation at the capability of 4-million-kilowatt on Sunday.

This power line project spans 1,616 kilometers and is scheduled to be fully completed and put into operation at the designed transmission capability of 8-million-kilowatt in September this year. (Photo by Yuan Hongyan/Xinhua) 

An aerial drone photo shows a view of the Zhongning converter station, the sending end of the Ningxia-Hunan ±800 kV ultra-high voltage direct current transmission project in Zhongwei, northwest China's Ningxia Hui Autonomous Region, June 29, 2025.

After a 168-hour trial, the ±800 kV ultra-high voltage direct current transmission project, which brings electricity from northwest China's Ningxia Hui Autonomous Region to central China's Hunan Province, kicked off its official operation at the capability of 4-million-kilowatt on Sunday.

This power line project spans 1,616 kilometers and is scheduled to be fully completed and put into operation at the designed transmission capability of 8-million-kilowatt in September this year. (Photo by Yuan Hongyan/Xinhua) 

An aerial drone photo shows the cross-Yellow River section of the Ningxia-Hunan ±800 kV ultra-high voltage direct current transmission project in Zhongwei, northwest China's Ningxia Hui Autonomous Region, June 29, 2025.

After a 168-hour trial, the ±800 kV ultra-high voltage direct current transmission project, which brings electricity from northwest China's Ningxia Hui Autonomous Region to central China's Hunan Province, kicked off its official operation at the capability of 4-million-kilowatt on Sunday.

This power line project spans 1,616 kilometers and is scheduled to be fully completed and put into operation at the designed transmission capability of 8-million-kilowatt in September this year. (Photo by Yuan Hongyan/Xinhua) 

An aerial drone photo shows a photovoltaic farm as part of the Ningxia-Hunan ±800 kV ultra-high voltage direct current transmission project in Zhongwei, northwest China's Ningxia Hui Autonomous Region, June 29, 2025.

After a 168-hour trial, the ±800 kV ultra-high voltage direct current transmission project, which brings electricity from northwest China's Ningxia Hui Autonomous Region to central China's Hunan Province, kicked off its official operation at the capability of 4-million-kilowatt on Sunday. 

This power line project spans 1,616 kilometers and is scheduled to be fully completed and put into operation at the designed transmission capability of 8-million-kilowatt in September this year. (Photo by Yuan Hongyan/Xinhua) 

An aerial drone photo shows the cross-Yellow River section of the Ningxia-Hunan ±800 kV ultra-high voltage direct current transmission project in Zhongwei, northwest China's Ningxia Hui Autonomous Region, June 29, 2025.

After a 168-hour trial, the ±800 kV ultra-high voltage direct current transmission project, which brings electricity from northwest China's Ningxia Hui Autonomous Region to central China's Hunan Province, kicked off its official operation at the capability of 4-million-kilowatt on Sunday.

This power line project spans 1,616 kilometers and is scheduled to be fully completed and put into operation at the designed transmission capability of 8-million-kilowatt in September this year. (Photo by Yuan Hongyan/Xinhua) 

An aerial drone photo shows a view of the Zhongning converter station, the sending end of the Ningxia-Hunan ±800 kV ultra-high voltage direct current transmission project in Zhongwei, northwest China's Ningxia Hui Autonomous Region, June 24, 2025.

After a 168-hour trial, the ±800 kV ultra-high voltage direct current transmission project, which brings electricity from northwest China's Ningxia Hui Autonomous Region to central China's Hunan Province, kicked off its official operation at the capability of 4-million-kilowatt on Sunday.

This power line project spans 1,616 kilometers and is scheduled to be fully completed and put into operation at the designed transmission capability of 8-million-kilowatt in September this year. (Photo by Zhou Xupeng/Xinhua) 

An aerial drone photo shows a night view of the Zhongning converter station, the sending end of the Ningxia-Hunan ±800 kV ultra-high voltage direct current transmission project in Zhongwei, northwest China's Ningxia Hui Autonomous Region, June 21, 2025.

After a 168-hour trial, the ±800 kV ultra-high voltage direct current transmission project, which brings electricity from northwest China's Ningxia Hui Autonomous Region to central China's Hunan Province, kicked off its official operation at the capability of 4-million-kilowatt on Sunday.

This power line project spans 1,616 kilometers and is scheduled to be fully completed and put into operation at the designed transmission capability of 8-million-kilowatt in September this year. (Photo by Zhang Pengfei/Xinhua)

Source: Xinhua