The Belo Monte Dam (formerly known as Kararaô) is a hydroelectric dam complex on the northern part of the Xingu River in the state of Pará, Brazil. After its completion, with the installation of its 18th turbine, in November 2019, the installed capacity of the dam complex is 11,233 megawatts (MW), which makes it the second largest hydroelectric dam complex in Brazil and the fifth largest in the world by installed capacity, behind the Three Gorges Dam, Baihetan Dam and the Xiluodu Dam in China and the Brazilian-Paraguayan Itaipu Dam. Considering the oscillations of flow river, guaranteed minimum capacity generation from the Belo Monte Dam would measure 4,571 MW, 39% of its maximum capacity. Brazil's rapid economic growth over the last decade has provoked a huge demand for new and stable sources of energy, especially to supply its growing industries. In Brazil, hydroelectric power plants produce over 85% of the electrical energy. The Government has decided to construct new hydroelectric dams to guarantee national energy security. However, there is opposition both within Brazil and among the international community to the project's potential construction regarding its economic viability, the generation efficiency of the dams and in particular its impacts on the region's people and environment. In addition, critics worry that construction of the Belo Monte Dam could make the construction of other dams upstream- which could have greater impacts- more viable. Plans for the dam began in 1975 but were soon shelved due to controversy; they were later revitalized in the late 1990s. In the 2000s, the dam was redesigned, but faced renewed controversy and controversial impact assessments were carried out. On 26 August 2010, a contract was signed with Norte Energia to construct the dam once the Brazilian Institute of Environment and Renewable Natural Resources (IBAMA) had issued an installation license. A partial installation license was granted on 26 January 2011 and a full license to construct the dam was issued on 1 June 2011. The licensing process and the dam's construction have been mired in federal court battles; the current ruling is that construction is allowed, because the license is based on five different environmental technical reports and in accordance with the RIMA (Environmental Impact Report, EIA-RIMA) study for Belo Monte. The first turbines went online on 5 May 2016. As of October 2019 all turbines at Pimental and 17 turbines in main power powerhouse are online with total