Jan 29, 2026 - The World`s Largest Power Plant Is Hidden Inside a Mountain
Deep inside solid rock lies the world`s largest hidden power plant. This video takes you inside the Baihetan Hydropower Station, a massive underground engineering megaproject carved more than 300 meters into a mountain. With sixteen 1-gigawatt turbines, it generates electricity for tens of millions of homes while resisting extreme water pressure, seismic forces, and complex geology. Built along the Jinsha River in China, Baihetan showcases the limits of modern hydropower, extreme civil engineering, and large-scale renewable energy infrastructure. 00:00 The Power Plant You Can`t See 00:38 Hidden Hydropower Giant 01:48 Carving a City Underground 02:59 Managing the Mountain 04:04 The Underground Turbine Hall 04:54 Powering a Nation 06:00 Defying Earthquakes 06:42 Turning Pressure Into Power 07:23 A Century-Scale Machine 09:09 The Underground Future
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