Towards positive energy district assessment: The case study of Bucharest

Emilio Sessa, Alberto Brunetti, Giuseppina Ciulla, Francesco Guarino, Sonia Longo, Maurizio Cellura, Ana Dragomir and Codrut Papina

Energy, 2025, vol. 325, issue C

Abstract: Achieving energy-positive urban transformation requires integrated methodologies that assess feasibility at of an urban area as a Positive Energy District. This study applies a GIS-UBEM replicable approach to evaluate energy retrofitting, renewable energy potential, and urban morphology constraints of Drumul Taberei in Bucharest District 6, covering 447 buildings, with residential destination use (443) and schools (4). The findings indicate that deep renovations reduce heating demand by 24 %, but electricity demand remains largely unchanged due to roof area limitations (12 % of total conditioned space) keeping the traditional natural gas-based system. Despite a potential PV output of 48.34 GWh, the district remains largely reliant on external electricity sources, highlighting the challenges of achieving energy self-sufficiency in high-density urban areas, even when investigating smaller area to individuate possible sub-PEDs.

Keywords: Positive energy district; UBEM; Building energy efficiency; Environmental impact; Sustainable urban development; Retrofit (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:325:y:2025:i:c:s036054422501850x

DOI: 10.1016/j.energy.2025.136208

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