Brazil sees surge in demand for inventories of hydro project sites

Brazil energy regulator Agencia Nacional de Energia Eletrica (ANEEL) reports that, through July, demand for hydropower project inventory and feasibility studies has far exceeded the rate of demand for such studies in 2007.

In response to requests in 2007, ANEEL’s documentation center copied 7,900 compact disks (CD) of hydro inventory and feasibility studies, an average of 660 CDs per month. However, through July 2008, the center has recorded 6,645 CDs this year, an average of 950 CDs per month.

Brazil has been carrying out such river inventories across the country. (HNN 10/2/07) Hydroelectric inventory studies constitute, in areas of engineering, the potential of hydroelectric generation by hydrographic study of falls in a basin. The studies define the number of potential hydropower developments taking into account places they would be installed, in locations that would provide the maximum energy at the least cost, with minimum environmental effects.

Feasibility studies are the subsequent phase to the inventories. They include engineering studies to define a prospective hydro plant, its energy, and technical-economic and environmental optimization.

ANEEL said most frequent requests for studies are for plants going to concession auctions. Inventories most requested in the past month are for Paraiba do Sul River in Sao Paulo, Rio de Janeiro, and Minas Gerais states; Palmeiras River in Tocantins State; Chapeco River in Santa Catarina State; and Teles Pires River in Mato Grosso State.

The agency said requests for studies come from across Brazil from consulting companies, 50 percent; individuals, 23 percent; corporations, 12 percent; concessionaires, 11 percent; agencies, 3 percent; and law offices, 1 percent.

ANEEL has available on its Internet site,, a report on the studies and projects that may be obtained under the link Informacoes Technicas/Gestaos e Estudos Hidroenergeticos. It also can be obtained by request to Centro de Documentacao (Cedoc), SGAN 603, Modulo J, Terreo, CEP 70830, 030 Brasilia, DF, Brazil; (55) 61-21928668l E-mail:

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