Developers installed this power station with a capacity of 22,500 MW and completed the project between 2008 and 2012. Let’s just say there’s more than you can imagine. Because people have found so many positive uses for hydroelectric dams, there have been thousands of them built around the world and many more are being constructed. Guri Dam in Bolívar, Venezuela is the largest dam in the world based on reservoir volume. These dams are either operational or under construction. The largest hydropower plant in the world is the Three Gorges Dam, in Yichang, Hubei province. 9. The Krasnoyarsk Dam is 124 meters in height and 1,065 meters in length. April 22, 2010, charm, Leave a comment. But not all dams are the stuff of documentaries. Guri Dam is also one of the world’s tallest dams with a height of 162 m (531 ft). The Three Gorges Dam has a generating capacity of 22,500 megawatts (MW) compared to 14,000 MW for the Itaipu Dam. In 2012, the Three Gorges Dam in China took over the #1 spot of the largest hydroelectric dam (in electricity production), replacing the Itaipú hydroelectric power plant in Brazil and Paraguay. Number of Hydroelectric Dams in the World. How many major hydroelectric dams are there in the world? There are 137 hydroelectric dams in the world and each of them can produce more than 1,000 MW in net capacity. Tens of thousands of smaller hydroelectric dams exist around the world, and all indications suggest that the number could substantially increase in the future. A well-equipped power plant, the Krasnoyarsk facility is equipped with a total 12 Francis generating units . Largest Hydroelectric Dams in the World. The following chart from Wikipedia shows the top hydroelectric dams in the world: Three Gorges Dam, China, Video I. How many hydroelectric dams are there in the US? 137 hydroelectric dams. These structures are small enough to avoid the many regulations large dams face, and are built more quickly and in much higher densities. There are 2,198 active plants, which makes this country the world leader when it … According to the World Commission on Dams in 2000, there were 22,104 dams over the height of 15 m (49 ft) operating in China. It dams the Yangtze River and resulted in the flooding of a staggering 1,084 km2. Three Gorges Dam is a 22,500 MW facility producing 98.1 TW hours is the world’s single largest source of electricity according to Popular Mechanics. In addition, many hydroelectric dams can also control river flows and regulate flooding. Of the world's total large dams, China accounts for the most – 20 percent of them; 45 percent of which are used for irrigation. Sayanogorsk Hydro Power Plant, Russia (6.4 GW) Sayanogorsk Hydro Power Plant, or the Sayano–Shushenskaya Dam, is the largest hydroelectric power plant in the world. In this post, we'll introduce you to the 10 largest hydroelectric dams in the world. Dams and reservoirs in China are numerous and have had a profound effect on the country's development and people. The dam’s reservoir can hold up to 135 cubic kilometers (32.39 cu mi) of water.