China Begins Construction of $165 Billion Motuo Dam in Tibet, World's Largest Hydropower Project
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China Begins Construction of $165 Billion Motuo Dam in Tibet, World's Largest Hydropower Project

16 April, 2026.Technology and Science.6 sources

Key Takeaways

  • Motuo Dam in Tibet began construction, about 60 GW capacity, estimated cost around $165–168 billion.
  • Expected to generate more electricity than the Three Gorges, becoming the world's most powerful dam.
  • Environmental concerns and downstream impacts threaten India, Bangladesh; fifteen thousand displaced.

China's Mega Dam

The dam will be three times more powerful than the Three Gorges Dam.

Image from BFM
BFMBFM

It will produce up to 300 billion kilowatt-hours per year and supply more than 100 million households.

The project includes five dams in cascade around the city of Nyingchi.

Construction will require displacing between 15,000 and 1.2 million people.

The dam is part of China's strategy to reduce coal dependence.

Environmental and Geopolitical Risks

The dam's location is in a seismically active and ecologically sensitive region.

Excavation work could exacerbate risks of landslides and mudflows.

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Le ParisienLe Parisien

India and Bangladesh have expressed alarm over water security and flood management.

Arunachal Pradesh Chief Minister warned the dam could be used as a water bomb by China.

Environmentalists worry about irreversible impacts on biodiversity.

The project involves diverting the river's course through tunnels.

Human and Cultural Costs

Estimates of displaced people range from 15,000 to 1.2 million.

China begins construction in Tibet of the world's largest and most controversial dam

RFIRFI

More than 120,000 expulsions have already occurred from 34 active dams.

The project will flood temples, monuments, and protected natural reserves.

Tibet has been under Chinese occupation for 70 years.

The dam symbolizes China's increasing willingness to undertake mega-projects.

Global Implications

The dam promises a massive increase in renewable energy capacity.

It poses substantial environmental, social, and geopolitical risks.

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SciencepostSciencepost

The project highlights tensions in transboundary resource management.

It raises questions about the sustainability of mega-dams.

The Motuo Dam will be closely watched as a test case.

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