Mega Dams -Hydroelectric Revolution -Big Bigger Biggest

This film reveals the technological leaps forward that have allowed the world’s largest hydroelectric gravity dam, the Three Gorges Dam in China, to be built. The dam, that harnesses the power of China’s mighty Yangtze River, is over 2 kilometres long, towers over 60 storeys high, and creates a reservoir 600 kilometres in length. The concrete superstructure has a generating capacity of 22,500 megawatts of power, enough to supply electricity to 60 million people. At its peak over 25,000 men and women were working round the clock to make what was once Chairman Mao’s dream a reality.

The programme explores how this immense project was made possible through a series of five engineering breakthroughs. Six landmark dams, including the Hoover Dam in America, each feature a major technological innovation that allowed engineers to create bigger dams generating ever more hydroelectric power. Using computer-generated animation, we share the incredible stories behind these projects and the inventions that have allowed them to increase in scale. Six ingenious leaps forward that enabled dams to evolve, from BIG, to BIGGER, into the world’s BIGGEST.

00:00 Introduction
04:17 Power Generation – Debdon Dam
11:57 River Diversion – Marèges Dam
19:08 Concrete – Hoover Dam
24:45 Flood – Grand Coulee Dam
31:07 Shipping – Krasnoyarsk Dam
38:15 Sediment – Three Gorges Dam

Episode from the “Big Bigger Biggest” documentary series exploring the engineering breakthroughs that have enabled us to develop some of the largest structures in existence

World tallest Hydropwer Pump Storage dam in China. Installed 3000 MW.
https://www.google.com/imgres?imgurl=https%3A%2F%2Fcdn.i-scmp.com%2Fsites%2Fdefault%2Ffiles%2Fd8%2Fimages%2Fcanvas%2F2023%2F06%2F26%2F9f4764ea-8260-4536-a113-55cee72c9760_91e0be88.jpg&tbnid=z-RY70R1j-1dkM&vet=1&imgrefurl=https%3A%2F%2Fwww.scmp.com%2Fnews%2Fchina%2Fscience%2Farticle%2F3225408%2Fchina-worlds-largest-hybrid-solar-hydro-plant-produces-electricity-tibetan-plateau&docid=oY2WKWuQac00-M&w=4095&h=2752&source=sh%2Fx%2Fim%2Fm4%2F2&kgs=ffa3cb2f64e47b31&shem=abme%2Ctrie

Restoration Update of New Norte Dame ( $ 900 Million Mega Project ) !!

https://youtu.be/W8Z1ZxdXKqk?si=FYLS7l320QB4z24R

Eiffel Tower,Story Of An Incredible Bet

Hundred thirty years ago in 1889 as Paris was hosting the World’s Fair, the iron lady became instantly the city’s iconic monument embodying the modernity and the engineering feat of this Era. The engineer Gustave Eiffel fought for years to erect in the heart of Paris the tallest tower ever built, seen by many as ugly and out of place at the time. Against all odds, he took the helm of a gigantic building site and revolutionized the construction technique. Revisit this historic saga and engineering challenge in this detailed account and high end docu-drama !

Director: Mathieu SCHWARTZ

Constructing the Wonder : Hoover Dam Secrets Revealed

Mega Dams – Hydeoelectric Evolution – Bid,Bigger ,Biggest

This film reveals the technological leaps forward that have allowed the world’s largest hydroelectric gravity dam, the Three Gorges Dam in China, to be built. The dam, that harnesses the power of China’s mighty Yangtze River, is over 2 kilometres long, towers over 60 storeys high, and creates a reservoir 600 kilometres in length. The concrete superstructure has a generating capacity of 22,500 megawatts of power, enough to supply electricity to 60 million people. At its peak over 25,000 men and women were working round the clock to make what was once Chairman Mao’s dream a reality.

The programme explores how this immense project was made possible through a series of five engineering breakthroughs. Six landmark dams, including the Hoover Dam in America, each feature a major technological innovation that allowed engineers to create bigger dams generating ever more hydroelectric power. Using computer-generated animation, we share the incredible stories behind these projects and the inventions that have allowed them to increase in scale. Six ingenious leaps forward that enabled dams to evolve, from BIG, to BIGGER, into the world’s BIGGEST

Megastructures: Building Wonders of Modern Mankind | FD Engineering

Extreme Constructions – Complete Series:    • Extreme Constructions | Complete…  

00:00:00 Mega Dams & Channels
The need of new territory has pushed water engineers to design new technology to create or preserve land. On the one side, cutting-edge technology has been design to dry marshes or to protect cities from flood, like Venice. But water is also behind or the object of other great technical challenges: how do we use it to create enough energy? How do we build canals and locks to make transportation more convenient, faster and safe

00:51:21 Bridging the Gap
To gain the other side, to cross the bay, a curiosity, then an obligation which pushed the Man, from the first times of its history, to develop techniques of construction to overcome these obstacles. From the first bridges in liana, through the Roman aqueducts to the viaduct of Millau which spans the valley of the Tarn to 270 m in height, the genius of the man was expressed in the civil engineering…These technical feats, traits of union between men, are, in the broad sense, true works of art. Thus man has developed, thanks to science and its applications, a way to get closer to other men and to become master of time, and space…

01:42:17 Higher & Higher
Which was the invention that propelled the construction of higher and higher buildings? Concrete? Iron? Not really… It was the elevator: as matter of fact nobody would have accepted to live on the 40th floor without it. From the Tower of Babel to the Kingdom Tower in Saudi Arabia, humanity has always searched to build bigger and higher. What are the scientific advance and technologies that have made it possible to « touch » the sky. Will there be any limits? From the field of physics, to chemistry, maths and all other hard sciences, scientists share the thirst of knowledge and curiosity. Combining dramatic specialist photography with innovative CGI, all set in spectacular locations across the world, this documentary is the pilot of a future series that will highlight the history of human ingenuity.
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Hong Kong’s financial markets, Shenzhen’s technology and Guangdong’s manufacturing have the potential to turn the Greater Bay Area into an economic powerhouse. The FT’s Ben Bland reports.

Super Dam of China

New largest hydroelectric dam of China in the world after Three George Dam Project

• ENERGY

The largest hydroelectric dam in the world has been approved

By Joe Salas

January 04, 2025

• https://youtu.be/1DyhxVInb9Y?si=g-HQJv1Zi3O8MtUv

The proposed Yarlung Tsangpo Hydroelectric Project will produce three times as much electricity as the Three Gorges Dam, pictured hereXinhua

VIEW 1 IMAGES

China has approved what is set to become the biggest hydropower dam complex in the world, capable of producing nearly three times as much power as the current record-holder, the Three Gorges Dam.

The project is slated to be built on the Yarlung Zangbo River in Tibet near the border of India at a cost of US$137 billion. It’s part of China’s 14th “Five-Year Plan,” which includes environmental goals to accelerate renewable energy and fight pollution. The location of the proposed dam looks to take advantage of the river’s steep geography to harness more hydropower than ever before: 300 billion kilowatt-hours per year.

That translates to 300 TWh, enough to serve as many as 300 million people in China.

The Three Gorges Dam, spanning the Yangtze River in China, currently holds the world title for installed capacity and annual hydroelectricity generation, producing between 95 and 112 TWh every year. If completed, the proposed Yarlung Tsangpo Hydroelectric Project will eclipse the Three Gorges Dam production by nearly three times.

For a sense of scale, the largest hydroelectric power plant in the US is the Grand Coulee Dam on the Columbia River in Washington. It’s one of the largest concrete structures in the world and produces about 20 TWh per year. The Hoover Dam that sits on the Nevada/Arizona border produces a mere 4.2 TWh, comparatively.

The Yarlung Zangbo River, which later turns into the Brahmaputra when it enters India, is one of the highest rivers in the world, originating from the Angsi Glacier in the Tibet Autonomous Region. The river is only partially responsible for carving out the Yarlung Tsangpo Grand Canyon. The region sits on tectonic plates and suffers regular earthquakes. It’s also one of the deepest canyons in the world, reaching 19,714 ft (6,009 m) at its deepest. It’s also 313.5 miles (504.6 km) long, making it longer than the Grand Canyon in the US.

All of this gives the Yarlung Zangbo River a drop of roughly 25,152 ft (7,667 m) from its highest point down to India, making it one of the most “hydropower-rich” rivers in the world. In particular, a 31-mile (50-km) stretch near the Namcha Barwa mountain has a 6,562-ft (2,000-m) drop, making it an ideal candidate location for a hydroelectric power station.

Installation of a dam in that location would require drilling multiple 12.5-mile (20-km) tunnels to divert the river, which flows around 70,600 cubic feet per second (2,000 cubic meters), enough to fill about three Olympic-sized swimming pools per second.

Meanwhile, authorities in neighboring India – which is downstream from the project – have expressed concern about China controlling the flow of the river and what impact it could have across the border.

Chinese officials claim to have completed extensive geological studies on the seismically active area and believe construction could be completed safely. No timeline has been set for construction yet.

Source: South China Morning Post

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