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A dimensionless index evaluating the time complementarity between solar and hydraulic energies

Author

Listed:
  • Beluco, Alexandre
  • de Souza, Paulo Kroeff
  • Krenzinger, Arno

Abstract

The power plants based on renewable sources face various acceptance difficulties mainly due to high initial costs and low overall efficiencies. A way to improve performance of these systems is to utilize more than one type of source of energy chosen to provide some degree of complementarity. An interesting, albeit improbable, combination is obtained using hydroelectric and photovoltaic energy, taking advantage of the complementarity between these two types of sources coupled to reservoir and/or battery storage. This paper discusses energy complementarity in time and proposes a numerical dimensionless index, evaluating this energy complementarity between two types of energy sources, in the same or in different locations, or between two sources of the same type in different locations. In the end, the results of the application of this index to the solar and water availabilities over the state of Rio Grande do Sul, in southern Brazil, is presented in the form of maps.

Suggested Citation

  • Beluco, Alexandre & de Souza, Paulo Kroeff & Krenzinger, Arno, 2008. "A dimensionless index evaluating the time complementarity between solar and hydraulic energies," Renewable Energy, Elsevier, vol. 33(10), pages 2157-2165.
    • Handle: RePEc:eee:renene:v:33:y:2008:i:10:p:2157-2165
    DOI: 10.1016/j.renene.2008.01.019
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