The Chinese government has given its green signal to the construction of the world’s largest dam on the river Yarlung Zangbo/Tsangpo (known as the Brahmaputra in India) on the eastern rim of the Tibetan plateau. The project has raised concerns among environmentalists as it will lead to the displacement of millions of people and the destruction of the natural ecosystem in Tibet. It could seriously affect millions of people downstream in India and Bangladesh.
The construction of a dam on the Yarlung Zangbo River was announced by China in 2020.
It will be the world’s largest dam in the world overtaking the Three Gorges Dam built on the Yangtze River in China.
The total investment in the dam is over 1 trillion yuan (US$137 billion), making it the single largest infrastructure project in the world.
The project is expected to generate nearly 300 billion kilowatt-hours (kWh) of electricity annually which is expected to meet the electricity needs of 30 crore people per year.
Currently, the world’s largest installed hydel power capacity is the Three Gorges Dam which was designed to produce 88.2 billion kWh.
The Dam is being built along a tectonic plate boundary where there is a high probability of earthquakes. It may endanger the dam and the population living in the downstream areas.
The dam will lead to the displacement of people and the destruction of the natural ecosystem in Tibet.
Many people see it as the continuous exploitation of the natural resources of Tibet which is tightly controlled by China.
Four to six 20 km long tunnels will be built through the Namcha Barwa mountains to divert half of the river’s flow at about 2,000 cubic meters per second. This is of concern to India.