CLICK TO WATCH : ‘ 25 TALLEST DAMS IN THE WORLD ’ 63
09 Longtan
6,426MW
Beginning full operations in 2009 , the Longtan dam cost around US $ 4.2bn to construct and has an installed capacity of 6,426MW . It is one of the tallest gravity dams in the world , standing at over 700ft tall with its power station situated underground .
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