The 1000kV Jindongnan-Nanyang-Jingmen UHVAC Demonstration Project after successful commissioning and trial operation has officially entered commercial operation. The Project demonstrates extensive technical innovation and intellectual property rights totally developed in China, with R&D, design and construction all accomplished by Chinese. This project marks China's major breakthrough in long-distance, large-capacity, low-loss UHV core technology and localization of power equipment. It also carries great significance for the optimization of energy resource allocation, and protection of national energy security and power supply.