Matching Energy Consumption and Photovoltaic Production in a Retrofitted Dwelling in Subtropical Climate without a Backup System

Sergio Gómez Melgar, Antonio Sánchez Cordero, Marta Videras Rodríguez and José Manuel Andújar Márquez
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Sergio Gómez Melgar: TEP192 Control y Robótica, Escuela Técnica Superior de Ingeniería, Universidad de Huelva, CP. 21007 Huelva, Spain
Antonio Sánchez Cordero: Programa de Ciencia y Tecnología Industrial y Ambiental, Escuela Técnica Superior de Ingeniería, Universidad de Huelva, CP. 21007 Huelva, Spain
Marta Videras Rodríguez: Programa de Ciencia y Tecnología Industrial y Ambiental, Escuela Técnica Superior de Ingeniería, Universidad de Huelva, CP. 21007 Huelva, Spain
José Manuel Andújar Márquez: TEP192 Control y Robótica, Escuela Técnica Superior de Ingeniería, Universidad de Huelva, CP. 21007 Huelva, Spain

Energies, 2020, vol. 13, issue 22, 1-27

Abstract: The construction sector is a great contributor to global warming both in new and existing buildings. Minimum energy buildings (MEBs) demand as little energy as possible, with an optimized architectural design, which includes passive solutions. In addition, these buildings consume as low energy as possible introducing efficient facilities. Finally, they produce renewable energy on-site to become zero energy buildings (ZEBs) or even plus zero energy buildings (+ZEB). In this paper, a deep analysis of the energy use and renewable energy production of a social dwelling was carried out based on data measurements. Unfortunately, in residential buildings, most renewable energy production occurs at a different time than energy demand. Furthermore, energy storage batteries for these facilities are expensive and require significant maintenance. The present research proposes a strategy, which involves rescheduling energy demand by changing the habits of the occupants in terms of domestic hot water (DHW) consumption, cooking, and washing. Rescheduling these three electric circuits increases the usability of the renewable energy produced on-site, reducing the misused energy from 52.84% to 25.14%, as well as decreasing electricity costs by 58.46%.

Keywords: minimum energy building; passive architecture; renewable energy on-site; energy efficiency; renewable energy potential factor (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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