Satellite imagery gives a glimpse of the site where China has commenced construction on what will become the world's largest dam and China's most ambitious infrastructure project since the Three Gorges Dam. Newsweek reached out to the Chinese Foreign Ministry and Power Construction Corporation of China via email for comment outside of office hours.

China's Premier Li Qiang announced construction had begun on what will be the world's largest hydropower dam, on the eastern rim of the Tibetan Plateau, at an estimated cost of at least $170 billion,

The megadam is set to become the world’s largest hydropower system and, costing an estimated $167 billion, by far the most expensive megadam of all time. It is anticipated to provide 300 billion kilowatt-hours of electricity annually, or around 4 percent of China’s energy needs.