The Itaipu Dam

The Itaipu hydroelectric power plant is the biggest of its kind in the world. Situated on the Parana River (the seventh largest river in the world) it was a joint construction venture between Paraguay and Brazil. It is run by the Itaipu Binacional company.

The ministers of foreign affairs of both Paraguay and Brazil signed the “Act of Iguaçu” in 1966, which began the studies of the hydroelectric potential of the Parana River. Construction started in 1975 and the last remaining expansions ended in 1991. The Itaipu Dam has 20 generators that produce 14,000 MW (megawatts). Around four million people resettled due the the construction of the dam and the construction of the dam also produced much environmental turmoil for the area.

The Itaipu dam is 7,919 meters long and has a maximum height of 196 meters. During the construction of the dam, approximately 50 million tons of rock and earth to dig a 1.3 mile bypass. This bypass shifted the course of the Parana River.

The Itaipu dam and surrounding area is a major tourist attraction. Since its completion in 1991, more than nine millions tourists have visited the dam.

The Itaipu dam negotiations and treated were enacted during the dictatorship of Alfredo Stroessner in Paraguay. The dam produces about 90 percent of the energy that Paraguay needs and 20 percent of the energy Brazil needs. For this reason only one generator is usually used for Paraguay. The enery that the rest of the nine generators (the Paraguayan half) produce, is sold to Brazil.

Thanks to these negotiations by Stroessner, the Brazilians receive a very generous, and unfair (for the Paraguayans) price for the surplus energy. In Paraguay, electricity is redicuosly expensive for such a poor country with two dams (the other being the Yacyreta dam). I speak this with personal experience since I lived there. Thanks to the corruption of the Stroessner dictatorship, and colorado governments that came after, we pay alot for electricity when it should be next to free.


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More facts on the Itaipu dam and its construction

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Itaipu dam on Encyclopedia Britannica