| Title: | Cultural heritage as a structural modifier of rooftop solar deployment : a building-level framework for heritage-constrained urban decarbonisation |
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| Authors: | ID Stegnar, Gašper, Institut "Jožef Stefan" (Author)
ID Čižman, Jure, Institut "Jožef Stefan" (Author)
ID Bevk, Tadej (Author)
ID Debevec, Maja (Author)
ID Gantar, Damjana (Author) |
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| Files: |  URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S0306261926012663
 PDF - Presentation file, download (7,37 MB)
MD5: AB8931B13397D23B4D54BB5281AF76ED
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | Cultural-heritage protection constrains rooftop photovoltaic (PV) deployment across a large share of the European building stock, yet existing solar cadastres ignore heritage-related regulatory constraints and therefore systematically overestimate deployable capacity in historic urban environments. This study develops and applies a heritage-aware framework that integrates building-level energy-demand modelling, a geographic information system (GIS)-based rooftop PV cadastre and scenario-based interpretation of heritage regulations to assess realistic decarbonisation pathways for heritage-constrained building stocks. Applied to the Municipality of Maribor, Slovenia (27,249 buildings), the framework shows that formally protected buildings (10.3% of the stock) account for 31.9% of technically suitable rooftop area — more than three times their share. Across five heritage-based scenarios, deployable PV potential ranges from 68% to 93% of the technical baseline (≈308–422 GWh/yr against 452.55 GWh/yr), determined primarily by institutional interpretation rather than the legal framework. Under deep electrification toward 2050, rooftop PV cannot achieve municipal self-sufficiency, leaving a residual gap of 8–22% of demand; notably, deeper renovation without relaxed PV admissibility widens rather than narrows this gap, showing that renovation depth and PV admissibility are complementary policy levers. Heritage protection thus acts as a structural modifier rather than a binary barrier, providing a transferable basis for integrating heritage constraints into solar cadastres, urban energy planning and national renovation strategies. |
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| Keywords: | solar cadastre, urban energy planning, decarbonsation, rooftop photovoltaics |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 27.05.2026 |
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| Article acceptance date: | 01.08.2026 |
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| Publication date: | 04.08.2026 |
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| Publisher: | Elsevier |
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| Year of publishing: | 2026 |
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| Number of pages: | str. 1-17 |
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| Numbering: | Vol. 426, pt. A, [article no.] 128610 |
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| Source: | Nizozemska |
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| PID: | 20.500.12556/DiRROS-32161  |
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| UDC: | 620.92/.98 |
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| ISSN on article: | 1872-9118 |
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| DOI: | 10.1016/j.apenergy.2026.128610 |
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| COBISS.SI-ID: | 287720195 |
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| Copyright: | © 2026 The Authors. |
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| Note: | Nasl. z nasl. zaslona;
Opis vira z dne 13. 8. 2026;
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| Publication date in DiRROS: | 28.08.2026 |
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| Views: | 51 |
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| Downloads: | 34 |
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