Hydropower Reservoir Level Impact on the River Flow in the Southeast Region of Brazil

28 Pages Posted: 1 Jul 2021

See all articles by Julian David Hunt

Julian David Hunt

International Institute for Applied Systems Analysis (IIASA)

Andreas Nascimento

Federal University of Espirito Santo

Paulo Smith Schneider

Universidade Federal do Rio Grande do Sul (UFRGS)

André Luis Ribeiro Thomazoni

Universidade Federal do Rio Grande do Sul (UFRGS)

Nivalde José Castro

Universidade Federal do Rio de Janeiro (UFRJ)

Roberto Brandão

Universidade Federal do Rio de Janeiro (UFRJ)

Marcos Aurélio Vasconcelos Freitas

Universidade Federal do Rio de Janeiro (UFRJ)

José Sidnei Colombo Martini

University of São Paulo (USP)

Dorel Soares Ramos

University of São Paulo (USP)

Rodrigo Senne

Ambar Energia

Date Written: 2021

Abstract

Water management strategies can have considerable impacts on the regional climate and hydrology. It is usually the case that the construction and operation of hydropower reduces the river flow downstream due to the increase in evaporation. However, this paper shows that in humid regions, such as in Brazil, the hydropower storage reservoirs contribute to increase the flow of the river. This observation has been tested with historical reservoir level and river flow data from several dams in Brazil. It was found that the operation of reservoirs in Brazil has a considerable impact on its river flows. The higher the storage level in the beginning of the humid period, the higher the river flow during the wet period. The paper proposes strategies to allow the reservoirs to fill up and to maintain the reservoirs filled in the future, with the intention of increasing hydropower generation and reducing the intermittency of other renewable energy sources.

Suggested Citation

Hunt, Julian David and Nascimento, Andreas and Schneider, Paulo Smith and Thomazoni, André Luis Ribeiro and Castro, Nivalde José and Brandão, Roberto and Freitas, Marcos Aurélio Vasconcelos and Martini, José Sidnei Colombo and Ramos, Dorel Soares and Senne, Rodrigo, Hydropower Reservoir Level Impact on the River Flow in the Southeast Region of Brazil (2021). Available at SSRN: https://ssrn.com/abstract=3877904 or http://dx.doi.org/10.2139/ssrn.3877904

Julian David Hunt (Contact Author)

International Institute for Applied Systems Analysis (IIASA)

Schlossplatz 1
Laxenburg, A-2361
Austria

Andreas Nascimento

Federal University of Espirito Santo ( email )

Av. Fernando Ferrari, 514
No. 514, Goiabeiras
Vitória, Espirito Santo 29075
Brazil

Paulo Smith Schneider

Universidade Federal do Rio Grande do Sul (UFRGS) ( email )

Av. Carlos Gomes 1111
Porto Alegre, Rio Grande do Sul 90480-004
Brazil

André Luis Ribeiro Thomazoni

Universidade Federal do Rio Grande do Sul (UFRGS) ( email )

Av. Carlos Gomes 1111
Porto Alegre, Rio Grande do Sul 90480-004
Brazil

Nivalde José Castro

Universidade Federal do Rio de Janeiro (UFRJ) ( email )

Av; Pasteur, 250
terreo - Bairro Maracana
Rio de Janeiro, Rio de Janeiro 23890000
Brazil

Roberto Brandão

Universidade Federal do Rio de Janeiro (UFRJ) ( email )

Av; Pasteur, 250
terreo - Bairro Maracana
Rio de Janeiro, Rio de Janeiro 23890000
Brazil

Marcos Aurélio Vasconcelos Freitas

Universidade Federal do Rio de Janeiro (UFRJ) ( email )

Av; Pasteur, 250
terreo - Bairro Maracana
Rio de Janeiro, Rio de Janeiro 23890000
Brazil

José Sidnei Colombo Martini

University of São Paulo (USP) ( email )

Rua Luciano Gualberto, 315
São Paulo, São Paulo 14800-901
Brazil

Dorel Soares Ramos

University of São Paulo (USP) ( email )

Rua Luciano Gualberto, 315
São Paulo, São Paulo 14800-901
Brazil

Rodrigo Senne

Ambar Energia ( email )

Brazil

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