Itaipu hydroelectric dam aerial view with massive water release

An aerial view of the Itaipu hydroelectric dam, one of the world's largest, with its spillway in operation during twilight.

About this subject

The Itaipu hydroelectric dam, located on the border between Brazil and Paraguay, is one of the largest in the world in terms of energy generation. Inaugurated in 1984, its construction required diverting the Paraná River and excavating 50 million cubic meters of rock and earth. The installed capacity is 14 GW, with 20 generating units producing about 90 million MWh per year, supplying approximately 15% of Brazil's consumption and 86% of Paraguay's. The spillway, 483 meters long and capable of releasing up to 62,000 cubic meters of water per second, is an essential safety structure to control the reservoir level during floods. The image captures the moment when the gates are opened, releasing a curtain of water that stands out in the landscape at dusk. Itaipu is also a symbol of binational cooperation, managed by Itaipu Binacional, and receives about 1 million visitors per year, being one of the main tourist attractions in the region. The plant has avoided the emission of over 600 million tons of CO2 since its operation, contributing to Brazil's clean energy matrix.

Frequently Asked Questions

What is the maximum capacity of the Itaipu spillway?

The Itaipu spillway can release up to 62,000 cubic meters of water per second, equivalent to 40 times the average flow of Iguazu Falls.

How many generating units does the plant have?

Itaipu has 20 generating units, each with a capacity of 700 MW, totaling 14 GW of installed power.

Is Itaipu the largest hydroelectric dam in the world?

Itaipu was the largest in terms of energy generation for many years, but currently it is the second, behind the Three Gorges Dam in China, which has 22.5 GW of capacity.