N January 2009,the 1,000 kV ultra-high voltage(UHV)alternating-current(AC)power transmission line from southeastern Shanxi Province to Jingmen in Hubei Province began operation.During their meeting in the U.S.a few months later,Steven Chu,the United States Secretary of Energy at the time,told then State Grid Corporation of China(State Grid)Chairman Liu Zhenya that he envied China’s UHV project,admitting that China was ahead of the U.S.in this area and expressing his wish to share China’s relevant achievements.