Workers work at the construction site of Xunyang hydropower station in Xunyang County, northwest China's Shaanxi Province, Jan. 7, 2021. With a total investment of over 4 billion yuan (about 0.62 billion U.S. dollars) and a total installed capacity of 320,000 kilowatts, the Xunyang hydropower station is located on the main stream of the Hanjiang River, a major tributary of the Yangtze River. (Xinhua/Shao Rui)

Aerial photo shows the construction site of Xunyang hydropower station in Xunyang County, northwest China's Shaanxi Province, Jan. 8, 2021. With a total investment of over 4 billion yuan (about 0.62 billion U.S. dollars) and a total installed capacity of 320,000 kilowatts, the Xunyang hydropower station is located on the main stream of the Hanjiang River, a major tributary of the Yangtze River. (Xinhua/Shao Rui)

A worker works at the construction site of Xunyang hydropower station in Xunyang County, northwest China's Shaanxi Province, Jan. 7, 2021. With a total investment of over 4 billion yuan (about 0.62 billion U.S. dollars) and a total installed capacity of 320,000 kilowatts, the Xunyang hydropower station is located on the main stream of the Hanjiang River, a major tributary of the Yangtze River. (Xinhua/Shao Rui)

Workers work at the construction site of Xunyang hydropower station in Xunyang County, northwest China's Shaanxi Province, Jan. 7, 2021. With a total investment of over 4 billion yuan (about 0.62 billion U.S. dollars) and a total installed capacity of 320,000 kilowatts, the Xunyang hydropower station is located on the main stream of the Hanjiang River, a major tributary of the Yangtze River. (Xinhua/Shao Rui)

Workers work at the construction site of Xunyang hydropower station in Xunyang County, northwest China's Shaanxi Province, Jan. 7, 2021. With a total investment of over 4 billion yuan (about 0.62 billion U.S. dollars) and a total installed capacity of 320,000 kilowatts, the Xunyang hydropower station is located on the main stream of the Hanjiang River, a major tributary of the Yangtze River. (Xinhua/Shao Rui)

Aerial photo shows the construction site of Xunyang hydropower station in Xunyang County, northwest China's Shaanxi Province, Jan. 8, 2021. With a total investment of over 4 billion yuan (about 0.62 billion U.S. dollars) and a total installed capacity of 320,000 kilowatts, the Xunyang hydropower station is located on the main stream of the Hanjiang River, a major tributary of the Yangtze River. (Xinhua/Shao Rui)

Workers work at the construction site of Xunyang hydropower station in Xunyang County, northwest China's Shaanxi Province, Jan. 7, 2021. With a total investment of over 4 billion yuan (about 0.62 billion U.S. dollars) and a total installed capacity of 320,000 kilowatts, the Xunyang hydropower station is located on the main stream of the Hanjiang River, a major tributary of the Yangtze River. (Xinhua/Shao Rui)

Staff members walk at the construction site of Xunyang hydropower station in Xunyang County, northwest China's Shaanxi Province, Jan. 7, 2021. With a total investment of over 4 billion yuan (about 0.62 billion U.S. dollars) and a total installed capacity of 320,000 kilowatts, the Xunyang hydropower station is located on the main stream of the Hanjiang River, a major tributary of the Yangtze River. (Xinhua/Shao Rui)

A worker works at the construction site of Xunyang hydropower station in Xunyang County, northwest China's Shaanxi Province, Jan. 7, 2021. With a total investment of over 4 billion yuan (about 0.62 billion U.S. dollars) and a total installed capacity of 320,000 kilowatts, the Xunyang hydropower station is located on the main stream of the Hanjiang River, a major tributary of the Yangtze River. (Xinhua/Shao Rui)

Workers work at the construction site of Xunyang hydropower station in Xunyang County, northwest China's Shaanxi Province, Jan. 7, 2021. With a total investment of over 4 billion yuan (about 0.62 billion U.S. dollars) and a total installed capacity of 320,000 kilowatts, the Xunyang hydropower station is located on the main stream of the Hanjiang River, a major tributary of the Yangtze River. (Xinhua/Shao Rui)

Aerial photo shows the construction site of Xunyang hydropower station in Xunyang County, northwest China's Shaanxi Province, Jan. 8, 2021. With a total investment of over 4 billion yuan (about 0.62 billion U.S. dollars) and a total installed capacity of 320,000 kilowatts, the Xunyang hydropower station is located on the main stream of the Hanjiang River, a major tributary of the Yangtze River. (Xinhua/Shao Rui)