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Hundreds of miles from China’s populous coastline, a sharp bend in a remote Himalayan river is set to become the centerpiece of one of the country’s most ambitious – and controversial – infrastructure projects to date.
There, a $168 billion hydropower system is expected to generate more electricity than any other in the world – a vast boon for China as it hurtles toward a future where electric vehicles dominate its highways and power-hungry AI models race to out-compute international rivals.
Chinese leader Xi Jinping called for the project to be “advanced forcefully, systematically, and effectively” during a rare visit earlier this year to Tibet, a region where Beijing continues to tighten its grip in the name of economic growth and stability.
Experts say the hydropower system, built in the lower reaches of Tibet’s Yarlung Tsangpo river, will be a feat of engineering unlike any ever undertaken. Leveraging a 2,000-meter altitude drop by blasting tunnels through a mountain, it will enable China to harness a major river in a region known as Asia’s water tower and at a time when governments are sharpening their focus on water security.
The project could aid global efforts to slow climate change, by helping China – now the world’s largest carbon emitter – wean off coal-powered energy. But its construction could also disrupt a rare, pristine ecosystem and the ancestral homes of indigenous residents.
Tens of millions of people also depend on the river downstream in India and Bangladesh, where experts say the potential impact on the ecosystem, including on fishing and farming, remain understudied.
Headlines in India have already dubbed the project a potential “water bomb” – and its proximity to the disputed China-India border put it at risk of becoming a flashpoint in a long-simmering territorial dispute between the two nuclear-armed powers.
Despite these stakes, the project remains shrouded in secrecy, deepening questions about a plan that shows China’s immense technical capabilities and drive for clean energy, but also its lack of transparency, even when it comes to an undertaking with potentially far-reaching consequences.
Clues about the project’s design – both referenced in official or scientific reports and from open-source information compiled by CNN – suggest a complex system that could include dams and reservoirs along the Yarlung Tsangpo river, as well as a series of underground hydropower stations connected by tunnels, harnessing energy as a diverted portion of the river makes a steep elevation decline.
“This is the most sophisticated, innovative dam system the planet has ever seen,” said Brian Eyler, director of the Energy, Water, and Sustainability Program at the Stimson Center think tank in Washington. “It’s also the riskiest and potentially the most dangerous.”
China disagrees. In a statement to CNN, its Ministry of Foreign Affairs said that the project had “undergone decades of in-depth research” and “implemented thorough measures for engineering safety and ecological protection to ensure it will not adversely affect downstream areas.”
“Since the initial preparation and official commencement of the project, the Chinese side has always maintained transparency regarding pertinent information and has kept open lines of communication with downstream countries,” the ministry said, adding that “as the project progresses” Beijing would “share necessary information with the international community” and “strengthen communication and cooperation with downstream countries.”
The project, it said, “aims to accelerate the development of clean energy, improve local livelihoods, and actively address climate change.”
But Beijing may have other priorities in mind, too. The ambitious infrastructure move comes as Xi pushes to shore up national security not just by ensuring China’s energy supply – but also tightening control along disputed borders and regions home to ethnic minorities.
“If you connect the dots of Chinese infrastructure development in the Himalayas, especially in areas where China borders India along Tibet, they are strategically placed,” said Rishi Gupta, assistant director at the Asia Society Policy Institute in New Delhi.
“The project aligns with China’s broader goal of leveraging its natural resources to consolidate control over critical regions like Tibet and its borders.” Click here to continue reading.
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