- The "super-dam" however is in a league of its own.
BEIJING: China is planning a mega dam in Tibet able to produce triple the electricity generated by the Three Gorges -- the world's largest power station -- stoking fears among environmentalists and in neighbouring India.
The structure will span the Brahmaputra River before the waterway leaves the Himalayas and flows into India, straddling the world's longest and deepest canyon at an altitude of more than 1,500 metres (4,900 feet).
The project in Tibet's Medog County is expected to dwarf the record-breaking Three Gorges Dam on the Yangtze River in central China, and is billed as able to produce 300 billion kilowatts of electricity each year.
It is mentioned in China's strategic 14th Five-Year Plan, unveiled in March at an annual rubber-stamp congress of the country's top lawmakers.
But the plan was short on details, a timeframe or budget.
The river, known as the Yarlung Tsangpo in Tibetan, is also home to two other projects far upstream, while six others are in the pipeline or under construction.
The "super-dam" however is in a league of its own.
Last October, the Tibet local government signed a "strategic cooperation agreement" with PowerChina, a public construction company specialising in hydroelectric projects.
A month later the head of PowerChina, Yan Zhiyong, partially unveiled the project to the Communist Youth League, the youth wing of China's ruling party.
Enthusiastic about "the world's richest region in terms of hydroelectric resources", Yan explained that the dam would draw its power from the huge drop of the river at this particular section.