In just 5 milliseconds—0.005 seconds—clean energy generated in Qinghai Province, northwest China, travels over 1,500 km to the central province of Henan.
“In the blink of an eye, Qinghai has already sent electricity to Henan multiple times,” Lu Jinlong, a technician at the Qingnan Converter Station in Gonghe County, Hainan Tibetan Autonomous Prefecture, Qinghai, told reporters during a group interview on July 25.
The Qingnan Converter Station is the starting point of the Qinghai-Henan ±800-kilovolt (KV) ultra-high-voltage direct current (UHVDC) project. Ultrahigh voltage transmission lines, operating at over 800 KV of direct current (DC) or 1,000 KV of alternating current (AC), offer advantages over traditional lines, including increased transmission capacity, extended distances and reduced energy losses.
Operational since 2020, the project transmits 40 billion kilowatt-hours (kwh) of electricity annually, serving…