Value of China's first ultra-high voltage transmission projects - 1000 kV Jindongnan - Nanyang - Jingmen UHV AC pilot demonstration project put into operation two anniversary, the State Grid Corporation announced the official launch of the line expansion project to significantly improve the northern, central grid power exchange capability to fully reflect the special high-voltage transmission technology and economic advantages.

Jindongnan - Nanyang - Jingmen UHV AC pilot demonstration project from the start has been well received, even before its start, has also been controversy. The put into operation two years, its security and stability of 736 days consecutive outstanding performance, it not only verify the UHV power transmission technology and economic advantages, but also established a special high-voltage transmission technology in our research, equipment manufacturing, engineering, construction and running an international leader in the field - According to the National grid Vice President Shu Yinbiao introduced in the same transmission distance and transmission capacity, the special high-voltage transmission capacity of 500 kV transmission line 4 to 5 times, only the 30% line loss ; transmission distance of up to 2000-3000 km, 500 kV line cost is 75%. Two years, the project to achieve a two-way, full-voltage, high-capacity transmission, has withstood thunderstorms, strong winds and high temperatures, cold and other harsh conditions tested, the system is stable, the device status is normal. Completion of the project greatly enhanced the northern, central power exchange between the grid and resource optimization capabilities. As of January 5, power transmission project, a total 20.9 billion kwh, of which North Central 13 billion kwh of thermal power sent to replace coal 4.2 million tons; Central North 7.9 billion kwh water delivery, saving 2.55 million tons of coal, emission reduction 6.94 million tons of carbon dioxide. 2009 winter power shortages in central China, the average daily delivery of the project by about 50 million kwh electricity, equivalent to 16,000 tons of standard coal per day delivery, effectively easing the tension in central China coal transportation conflicts.