File photo taken on May 24, 2012 shows the scene of the Gujiao Power Plant in Taiyuan, capital of north China's Shanxi Province. According to the latest data released by the State Energy Administration, China has become the world's largest energy producer by the end of 2012. The total installed electricity capacity was 1.14 billion kilowatts, including 249 million of hydropower capacity which was the world's largest. The installed wind power capacity stood at 63 million kilowatts, making China the world's No. 1 in this field. The nuclear power under construction is also the world's largest. (Xinhua/Yan Yan)