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Power quality and energy efficiency assessment and the need for labelling and minimum performance standard of uninterruptible power systems (UPS) in Brazil

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  • Sauer, Ildo L.
  • Tatizawa, Hédio
  • Salotti, Francisco A.M.

Abstract

The poor quality of electrical power in Brazil has led to an increase in the sales of power conditioning equipment such as uninterruptible power systems (UPS) to supply a voltage wave shape without distortion or interruption. However, there are indications that the average performance of the UPS equipment available in the Brazilian market requires some improvement. Information about the energy-related behaviour of UPS units is scarce. In this paper, we estimate and analyse the installed capacity of UPS units and assess their power consumption, losses and impact on the power quality in the electrical system. The analysis is performed through energy efficiency and power quality measurements performed on UPS units that are commonly available in Brazil. We estimate the energy conservation potential of the UPS. The results of assessments strongly support the need for public policies for energy efficiency and power quality improvements, particularly the labelling of UPS units and the introduction of minimum performance standards for UPS devices.

Suggested Citation

  • Sauer, Ildo L. & Tatizawa, Hédio & Salotti, Francisco A.M., 2012. "Power quality and energy efficiency assessment and the need for labelling and minimum performance standard of uninterruptible power systems (UPS) in Brazil," Energy Policy, Elsevier, vol. 41(C), pages 885-892.
    • Handle: RePEc:eee:enepol:v:41:y:2012:i:c:p:885-892
    DOI: 10.1016/j.enpol.2011.11.071
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    1. Mitchell-Jackson, J. & Koomey, J.G. & Nordman, B. & Blazek, M., 2003. "Data center power requirements: measurements from Silicon Valley," Energy, Elsevier, vol. 28(8), pages 837-850.
    2. Kawamoto, Kaoru & Koomey, Jonathan G & Nordman, Bruce & Brown, Richard E & Piette, Mary Ann & Ting, Michael & Meier, Alan K, 2002. "Electricity used by office equipment and network equipment in the US," Energy, Elsevier, vol. 27(3), pages 255-269.
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    1. Ahmad, Ali & Saqib, Muhammad Asghar & Rahman Kashif, Syed Abdul & Javed, Muhammad Yaqoob & Hameed, Abdul & Khan, Muhammad Usman, 2016. "Impact of wide-spread use of uninterruptible power supplies on Pakistan's power system," Energy Policy, Elsevier, vol. 98(C), pages 629-636.
    2. Francisco G. Montoya & Raul Baños & Alfredo Alcayde & Maria G. Montoya & Francisco Manzano-Agugliaro, 2018. "Power Quality: Scientific Collaboration Networks and Research Trends," Energies, MDPI, vol. 11(8), pages 1-16, August.

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