Penstocks (huge pipes that carry water from the Itaipu Dam above into the Itaipu Hydroelectric power plant to the turbine, where the power is created. Brazil/Paraguay border.                                   In terms of power output, Itaipú Dam is one of the world's largest hydroelectric projects. Its 20 massive turbine generators, located in the powerhouse at the base of the dam, are capable of generating 14,000 megawatts of electricity.
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