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Energy Analysis at a Near Zero Energy Building. A Case-Study in Spain

Author

Listed:
  • Javier M. Rey-Hernández

    (Department of Energy and Fluid Mechanics, School of Engineering (EII), University of Valladolid (UVa), 47011 Valladolid, Spain)

  • Eloy Velasco-Gómez

    (Department of Energy and Fluid Mechanics, School of Engineering (EII), University of Valladolid (UVa), 47011 Valladolid, Spain)

  • Julio F. San José-Alonso

    (Department of Energy and Fluid Mechanics, School of Engineering (EII), University of Valladolid (UVa), 47011 Valladolid, Spain)

  • Ana Tejero-González

    (Department of Energy and Fluid Mechanics, School of Engineering (EII), University of Valladolid (UVa), 47011 Valladolid, Spain)

  • Francisco J. Rey-Martínez

    (Department of Energy and Fluid Mechanics, School of Engineering (EII), University of Valladolid (UVa), 47011 Valladolid, Spain)

Abstract

This paper develops an energy analysis for an existing near Zero Energy (nZEB) and Zero Carbon Emissions building called LUCIA, located at the university campus in Valladolid (Spain). It is designed to supply electricity, cooling and heating needs through solar energy (Photovoltaic Systems, PV), biomass and an Earth–Air Heat Exchanger (EAHE), besides a Combined Heat Power (CHP). It is currently among the top three buildings with the highest LEED certification in the World. The building model is simulated with DesignBuilder version 5. The results of the energy analysis illustrate the heating, cooling and lighting consumptions expected, besides other demands and energy uses. From this data, we carried out an energy balance of the nZEB, which will help to plan preventive actions when compared to the actual energy consumptions, improving the management and control of both the building and its systems. The primary energy indicator obtained is 67 kWh/m 2 a year, and 121 kWh/m 2 a year for renewable energy generation, with respect to 55 kWh/m 2 and 45 kWh/m 2 set as reference in Europe. The Renewable Energy Ratio (RER) is 0.66. These indicators become a useful tool for the energy analysis of the nZEB according to the requirements in the European regulations and for its comparison with further nZEB.

Suggested Citation

  • Javier M. Rey-Hernández & Eloy Velasco-Gómez & Julio F. San José-Alonso & Ana Tejero-González & Francisco J. Rey-Martínez, 2018. "Energy Analysis at a Near Zero Energy Building. A Case-Study in Spain," Energies, MDPI, vol. 11(4), pages 1-19, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:4:p:857-:d:139815
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    References listed on IDEAS

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    Cited by:

    1. Rosaura Castrillón Mendoza & Javier M. Rey Hernández & Eloy Velasco Gómez & Julio F. San José Alonso & Francisco J. Rey Martínez, 2018. "Analysis of the Methodology to Obtain Several Key Indicators Performance (KIP), by Energy Retrofitting of the Actual Building to the District Heating Fuelled by Biomass, Focusing on nZEB Goal: Case of," Energies, MDPI, vol. 12(1), pages 1-20, December.
    2. Alberto Cerezo-Narváez & María-José Bastante-Ceca & José-María Piñero-Vilela, 2021. "Economic and Environmental Assessment on Implementing Solar Renewable Energy Systems in Spanish Residential Homes," Energies, MDPI, vol. 14(14), pages 1-39, July.
    3. Jing Zhao & Yahui Du, 2019. "A Study on Energy-Saving Technologies Optimization towards Nearly Zero Energy Educational Buildings in Four Major Climatic Regions of China," Energies, MDPI, vol. 12(24), pages 1-31, December.
    4. Kočí, Jan & Kočí, Václav & Maděra, Jiří & Černý, Robert, 2019. "Effect of applied weather data sets in simulation of building energy demands: Comparison of design years with recent weather data," Renewable and Sustainable Energy Reviews, Elsevier, vol. 100(C), pages 22-32.
    5. Fabiana Silvero & Fernanda Rodrigues & Sergio Montelpare, 2019. "A Parametric Study and Performance Evaluation of Energy Retrofit Solutions for Buildings Located in the Hot-Humid Climate of Paraguay—Sensitivity Analysis," Energies, MDPI, vol. 12(3), pages 1-27, January.
    6. Rosaura Castrillón-Mendoza & Javier M. Rey-Hernández & Francisco J. Rey-Martínez, 2020. "Industrial Decarbonization by a New Energy-Baseline Methodology. Case Study," Sustainability, MDPI, vol. 12(5), pages 1-19, March.
    7. Diana D’Agostino & Luigi Mele & Francesco Minichiello & Carlo Renno, 2020. "The Use of Ground Source Heat Pump to Achieve a Net Zero Energy Building," Energies, MDPI, vol. 13(13), pages 1-22, July.
    8. Krzysztof Wąs & Jan Radoń & Agnieszka Sadłowska-Sałęga, 2020. "Maintenance of Passive House Standard in the Light of Long-Term Study on Energy Use in a Prefabricated Lightweight Passive House in Central Europe," Energies, MDPI, vol. 13(11), pages 1-22, June.
    9. Javier M. Rey-Hernández & Eloy Velasco-Gómez & Julio F. San José-Alonso & Ana Tejero-González & Sergio L. González-González & Francisco J. Rey-Martínez, 2018. "Monitoring Data Study of the Performance of Renewable Energy Systems in a Near Zero Energy Building in Spain: A Case Study," Energies, MDPI, vol. 11(11), pages 1-17, November.
    10. Ascione, Fabrizio & Borrelli, Martina & De Masi, Rosa Francesca & Vanoli, Giuseppe Peter, 2020. "Hourly operational assessment of HVAC systems in Mediterranean Nearly Zero-Energy Buildings: Experimental evaluation of the potential of ground cooling of ventilation air," Renewable Energy, Elsevier, vol. 155(C), pages 950-968.
    11. Ana Tejero-González & Dorota Anna Krawczyk & José Ramón Martín-Sanz García & Francisco Javier Rey-Martínez & Eloy Velasco-Gómez, 2019. "Improved Performance of a PV Integrated Ventilated Façade at an Existing nZEB," Energies, MDPI, vol. 12(15), pages 1-14, August.

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