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A Portfolio of Building Solutions Supporting Positive Energy District Transition: Assessing the Impact of Green Building Certifications

Author

Listed:
  • Tiziana Ferrante

    (Department of Planning, Design, Technology of Architecture Sapienza University of Rome, 00196 Rome, Italy)

  • Paola Clerici Maestosi

    (Department of Energy Technologies and Renewable Sources, ENEA Italian National Agency for New Technologies, Energy and Sustainable Economic Development, 40129 Bologna, Italy)

  • Teresa Villani

    (Department of Planning, Design, Technology of Architecture Sapienza University of Rome, 00196 Rome, Italy)

  • Federica Romagnoli

    (Department of Planning, Design, Technology of Architecture Sapienza University of Rome, 00196 Rome, Italy)

Abstract

Positive Energy Districts (PEDs) represent an innovative approach to thinking and designing cities sustainably, in compliance with the European Union energy strategy. This strategy integrates sectors such as urban planning, energy, and construction to synergistically address energy and environmental challenges. Studies on sustainability assessment systems applied in PEDs evidenced that they focus mostly on energy aspects, while few include a comprehensive life cycle assessment of equivalent CO 2 emissions, considering the building component and the impacts of the materials used. Additionally, most assessments are conducted on the urban and district scale, such as Neighborhood Sustainability Assessments (NSA), which begin to correlate PEDs with the dynamics of selecting sustainable materials for green-certified projects, analyzed throughout the entire life cycle, relying on the adoption of Green Building Rating Systems (GBRS) at the building scale. To explore the impact of environmentally friendly (i.e., ‘green’) GBRS certifications in the selection of building materials and products according to sustainability criteria, and to encourage their use in projects explicitly referring to PEDs, this study analyzes the technical solutions implemented in two significant residential building renovation projects in Italy from a PED perspective. It proposes a classification system based on the required targets of energy efficiency, energy production, and energy flexibility. The results include the definition of an expandable portfolio of technical solutions, an analytical comparison between the materials used in the energy renovation projects of the case studies examined, and the sustainability criteria provided by voluntary ’green’ certification tools (GBRS). The collected evidence offers an operational framework that confirms the positive impact of GBRS certifications and the related selection of materials on sustainable urban development, contributing to the scientific debate on PEDs. Furthermore, the use of voluntary ’green’ certifications at the building scale can be encouraged in the context of the transition towards PEDs, aiming to identify specific criteria and indicators for the selection of building materials to be integrated into future PED certifications. This aims to contribute to creating energy self-sufficient urban areas, focusing on sustainability, efficiency, and innovation, in line with global emission reduction and climate change mitigation goals.

Suggested Citation

  • Tiziana Ferrante & Paola Clerici Maestosi & Teresa Villani & Federica Romagnoli, 2025. "A Portfolio of Building Solutions Supporting Positive Energy District Transition: Assessing the Impact of Green Building Certifications," Sustainability, MDPI, vol. 17(2), pages 1-23, January.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:2:p:400-:d:1561813
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    References listed on IDEAS

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    1. Anna Kozlowska & Francesco Guarino & Rosaria Volpe & Adriano Bisello & Andrea Gabaldòn & Abolfazl Rezaei & Vicky Albert-Seifried & Beril Alpagut & Han Vandevyvere & Francesco Reda & Giovanni Tumminia , 2024. "Positive Energy Districts: Fundamentals, Assessment Methodologies, Modeling and Research Gaps," Energies, MDPI, vol. 17(17), pages 1-31, September.
    2. Ilaria Marotta & Francesco Guarino & Sonia Longo & Maurizio Cellura, 2021. "Environmental Sustainability Approaches and Positive Energy Districts: A Literature Review," Sustainability, MDPI, vol. 13(23), pages 1-45, November.
    3. Paola Clerici Maestosi & Monica Salvia & Filomena Pietrapertosa & Federica Romagnoli & Michela Pirro, 2024. "Implementation of Positive Energy Districts in European Cities: A Systematic Literature Review to Identify the Effective Integration of the Concept into the Existing Energy Systems," Energies, MDPI, vol. 17(3), pages 1-27, February.
    4. Umberto Berardi, 2013. "Sustainability assessment of urban communities through rating systems," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 15(6), pages 1573-1591, December.
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