Home  > References Finder  > Estreito Hydroelectric Power Plant

Estreito Hydroelectric Power Plant

Energy > Hydropower > Large Hydropower
  • Client:

    Ceste Consortium (GDF SUEZ, Vale, Alcoa and Camargo Corrêa)

  • Region / Country:

    Brazil / Latin America

  • Services:

    EXECUTION / Owner's or Lender's Engineer

  • Period:

    2006 – 2011


Tractebel Engineering was the Owner’s Engineer for construction of the Estreito Hydroelectric Power Plant (HPP). This is one of the major hydroelectric projects ever to be developed in the northern region of Brazil.


The project is included in the ‘Program of Acceleration of Growth’ of the Brazilian government. The energy generated by the plant is supplied to the National Interconnected Electric System (SIN).


The Estreito HPP the construction of which was initiated in 2002 – is a 1,087 MW dam, with a run-of-river reservoir. It is located on the Tocantins river between the states of Tocantins and Maranhão. The plant has the largest Kaplan turbines in Brazil. Its rotor alone weighs 470 tonnes and is 14m high.


Estreito (HPP) technical details:


  • Spillway capacity: 62,700m³/s
  • Maximum dam height: 40m
  • Crest length: 534.13m
  • Gross head: 22m
  • Generating units: 8 x Kaplan
  • Type: Roller-Compacted Concrete (RCC) dam
  • Reservoir area: 590km²


At the height of the project (2010) Estreito had 10,000 workers on site. This proved a major challenge for our professionals managing the project.