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Efficient Solutions and Cost-Optimal Analysis for Existing School Buildings

Author

Listed:
  • Paolo Maria Congedo

    (Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy)

  • Delia D’Agostino

    (Energy Efficiency and Renewables Unit, Energy, Transport and Climate Institute, Joint Research Centre (JRC)—European Commission, 21027 Ispra (VA), Italy)

  • Cristina Baglivo

    (Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy)

  • Giuliano Tornese

    (Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy)

  • Ilaria Zacà

    (Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy)

Abstract

The recast of the energy performance of buildings directive (EPBD) describes a comparative methodological framework to promote energy efficiency and establish minimum energy performance requirements in buildings at the lowest costs. The aim of the cost-optimal methodology is to foster the achievement of nearly zero energy buildings (nZEBs), the new target for all new buildings by 2020, characterized by a high performance with a low energy requirement almost covered by renewable sources. The paper presents the results of the application of the cost-optimal methodology in two existing buildings located in the Mediterranean area. These buildings are a kindergarten and a nursery school that differ in construction period, materials and systems. Several combinations of measures have been applied to derive cost-effective efficient solutions for retrofitting. The cost-optimal level has been identified for each building and the best performing solutions have been selected considering both a financial and a macroeconomic analysis. The results illustrate the suitability of the methodology to assess cost-optimality and energy efficiency in school building refurbishment. The research shows the variants providing the most cost-effective balance between costs and energy saving. The cost-optimal solution reduces primary energy consumption by 85% and gas emissions by 82%–83% in each reference building.

Suggested Citation

  • Paolo Maria Congedo & Delia D’Agostino & Cristina Baglivo & Giuliano Tornese & Ilaria Zacà, 2016. "Efficient Solutions and Cost-Optimal Analysis for Existing School Buildings," Energies, MDPI, vol. 9(10), pages 1-24, October.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:10:p:851-:d:81138
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    References listed on IDEAS

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    1. Ascione, Fabrizio & Bianco, Nicola & De Masi, Rosa Francesca & de’ Rossi, Filippo & Vanoli, Giuseppe Peter, 2014. "Energy refurbishment of existing buildings through the use of phase change materials: Energy savings and indoor comfort in the cooling season," Applied Energy, Elsevier, vol. 113(C), pages 990-1007.
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    7. Giuseppe Bonazzi & Mattia Iotti, 2016. "Evaluation of Investment in Renovation to Increase the Quality of Buildings: A Specific Discounted Cash Flow ( DCF ) Approach of Appraisal," Sustainability, MDPI, vol. 8(3), pages 1-17, March.
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    Cited by:

    1. Cristina Baglivo & Delia D’Agostino & Paolo Maria Congedo, 2018. "Design of a Ventilation System Coupled with a Horizontal Air-Ground Heat Exchanger (HAGHE) for a Residential Building in a Warm Climate," Energies, MDPI, vol. 11(8), pages 1-27, August.
    2. D'Agostino, Delia & Parker, Danny, 2018. "A framework for the cost-optimal design of nearly zero energy buildings (NZEBs) in representative climates across Europe," Energy, Elsevier, vol. 149(C), pages 814-829.
    3. Yuting Qi & Queena K. Qian & Frits M. Meijer & Henk J. Visscher, 2019. "Identification of Quality Failures in Building Energy Renovation Projects in Northern China," Sustainability, MDPI, vol. 11(15), pages 1-23, August.
    4. Cristina Baglivo & Marina Bonomolo & Paolo Maria Congedo, 2019. "Modeling of Light Pipes for the Optimal Disposition in Buildings," Energies, MDPI, vol. 12(22), pages 1-28, November.
    5. Karim Mohamed Ragab & Mehmet Fatih Orhan & Kenan Saka & Yousef Zurigat, 2022. "A Study and Assessment of the Status of Energy Efficiency and Conservation at School Buildings," Sustainability, MDPI, vol. 14(17), pages 1-31, August.
    6. Delia D’Agostino & Ilaria Zacà & Cristina Baglivo & Paolo Maria Congedo, 2017. "Economic and Thermal Evaluation of Different Uses of an Existing Structure in a Warm Climate," Energies, MDPI, vol. 10(5), pages 1-29, May.
    7. Chul-Ho Kim & Seung-Eon Lee & Kang-Soo Kim, 2018. "Analysis of Energy Saving Potential in High-Performance Building Technologies under Korean Climatic Conditions," Energies, MDPI, vol. 11(4), pages 1-34, April.
    8. Tomasz Lukaszewski, 2021. "Buildings Thermal Retrofit Investement under ESCO Formula - A Case Study from Poland," European Research Studies Journal, European Research Studies Journal, vol. 0(2B), pages 1081-1093.
    9. Maria Ferrara & Valentina Monetti & Enrico Fabrizio, 2018. "Cost-Optimal Analysis for Nearly Zero Energy Buildings Design and Optimization: A Critical Review," Energies, MDPI, vol. 11(6), pages 1-32, June.
    10. Francesco Mancini & Fabio Nardecchia & Daniele Groppi & Francesco Ruperto & Carlo Romeo, 2020. "Indoor Environmental Quality Analysis for Optimizing Energy Consumptions Varying Air Ventilation Rates," Sustainability, MDPI, vol. 12(2), pages 1-18, January.
    11. Ainur Tukhtamisheva & Dinar Adilova & Karolis Banionis & Aurelija Levinskytė & Raimondas Bliūdžius, 2020. "Optimization of the Thermal Insulation Level of Residential Buildings in the Almaty Region of Kazakhstan," Energies, MDPI, vol. 13(18), pages 1-16, September.
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    13. Delia D’Agostino & Paolo Zangheri & Luca Castellazzi, 2017. "Towards Nearly Zero Energy Buildings in Europe: A Focus on Retrofit in Non-Residential Buildings," Energies, MDPI, vol. 10(1), pages 1-15, January.

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