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The effect of measurement time resolution on the peak time power demand reduction potential of domestic solar hot water systems

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  • Naspolini, Helena F.
  • Rüther, Ricardo

Abstract

The electrical resistance showerhead is the water heating technology used in over 70% of the Brazilian dwellings. These high power (5–8 kW are typical) instant heating devices contribute significantly to the demand peak in the early evening, and are a major burden to distribution utilities in Brazil. The objective of this paper is to define consumer showering patterns, and analyze the influence of the power demand measurement time resolution on the potential of peak time power demand reduction provided by Domestic Solar Hot Water (DSHW) systems. Results show that the measurement of electrical power demand in a 15-min interval is not adequate to evaluate and verify the benefits provided by the use of DSHW systems, because it heavily underestimates the active power demand reduction at peak hours. This work suggests that a 1-min time resolution can be considered appropriate to assess the potential impacts caused by the use of DSHW systems on the peak hours demand reduction.

Suggested Citation

  • Naspolini, Helena F. & Rüther, Ricardo, 2016. "The effect of measurement time resolution on the peak time power demand reduction potential of domestic solar hot water systems," Renewable Energy, Elsevier, vol. 88(C), pages 325-332.
    • Handle: RePEc:eee:renene:v:88:y:2016:i:c:p:325-332
    DOI: 10.1016/j.renene.2015.11.046
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    References listed on IDEAS

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    1. Naspolini, Helena F. & Rüther, Ricardo, 2012. "Assessing the technical and economic viability of low-cost domestic solar hot water systems (DSHWS) in low-income residential dwellings in Brazil," Renewable Energy, Elsevier, vol. 48(C), pages 92-99.
    2. Meyer, J.P & Tshimankinda, M, 1998. "Domestic hot-water consumption in South African apartments," Energy, Elsevier, vol. 23(1), pages 61-66.
    3. Almeida, Mauro Araujo & Schaeffer, Roberto & La Rovere, Emilio Lèbre, 2001. "The potential for electricity conservation and peak load reduction in the residential sector of Brazil," Energy, Elsevier, vol. 26(4), pages 413-429.
    4. Vine, Edward & Diamond, Rick & Szydlowski, Rich, 1987. "Domestic hot water consumption in four low-income apartment buildings," Energy, Elsevier, vol. 12(6), pages 459-467.
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    1. Naspolini, Helena F. & Rüther, Ricardo, 2019. "Impacts of the active power demand measurement-time resolution on the financial attractiveness of domestic solar hot water systems," Renewable Energy, Elsevier, vol. 139(C), pages 336-345.
    2. Moldovan, Camelia Liliana & Păltănea, Radu & Visa, Ion, 2020. "Improvement of clear sky models for direct solar irradiance considering turbidity factor variable during the day," Renewable Energy, Elsevier, vol. 161(C), pages 559-569.
    3. Fernanda Spada Villar & Pedro Henrique Juliano Nardelli & Arun Narayanan & Renan Cipriano Moioli & Hader Azzini & Luiz Carlos Pereira da Silva, 2021. "Noninvasive Detection of Appliance Utilization Patterns in Residential Electricity Demand," Energies, MDPI, vol. 14(6), pages 1-23, March.
    4. Giglio, T. & Santos, V. & Lamberts, R., 2019. "Analyzing the impact of small solar water heating systems on peak demand and on emissions in the Brazilian context," Renewable Energy, Elsevier, vol. 133(C), pages 1404-1413.

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