Experimental energy performance assessment of a bifacial photovoltaic system and effect of cool roof coating
In the quest for high albedo materials that boost the energy production of bifacial photovoltaic systems, a range of material already exists for reducing building roof surface temperatures, called cool roof materials. However, there is a noticeable absence of scientific literature addressing the com...
| Autores: | , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/398876 |
| Acceso en línea: | https://hdl.handle.net/2117/398876 https://dx.doi.org/10.1016/j.jobe.2023.108009 |
| Access Level: | acceso abierto |
| Palabra clave: | Photovoltaic power generation Roofs Energy conservation Bifacial PV Cool Roof BAPV Building Energy Performance Photovoltaic Energia solar fotovoltaica Cobertes (Construcció) Energia -- Estalvi Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica Àrees temàtiques de la UPC::Edificació |
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Experimental energy performance assessment of a bifacial photovoltaic system and effect of cool roof coatingValencia Caballero, DanielBouchakour, SalimLuna Alloza, Álvaro|||0000-0002-4487-6659Garcia Marco, BorjaHuidobro, AnaFlores Abascal, IvanSanz Martínez, AsierRomán, EduardoPhotovoltaic power generationRoofsEnergy conservationBifacial PVCool RoofBAPVBuilding Energy PerformancePhotovoltaicEnergia solar fotovoltaicaCobertes (Construcció)Energia -- EstalviÀrees temàtiques de la UPC::Energies::Energia solar fotovoltaicaÀrees temàtiques de la UPC::EdificacióIn the quest for high albedo materials that boost the energy production of bifacial photovoltaic systems, a range of material already exists for reducing building roof surface temperatures, called cool roof materials. However, there is a noticeable absence of scientific literature addressing the combination of cool roofs and bifacial photovoltaic systems. This study investigates the photovoltaic performance of a bifacial photovoltaic system with cool roof coating on the underside and its impact on floor temperature. For this purpose, four ~1kWp prototypes were installed on the terrace of the GAIA building of the UPC near Barcelona, Spain: (1) bifacial panels above a cool roof, (2) bifacial panels above normal floor, (3) bifacial panels above a normal floor with n-type solar cells encapsulated in TPO, and (4) monofacial panels. The results reveal 8.6 % higher PV yield for bifacial with cool roof compared to monofacial, and 4–4.5 % higher for bifacial (normal floor) compared to monofacial. Additionally, the cool roof coating contributes to reducing the floor temperatures, particularly in the unshaded (exposed) areas during summer (- 3.8 ¿C). The presence of photovoltaic panels has also demonstrated a positive impact on floor temperatures during both winter and summer. Thus, the cool roof coating offers two benefits: increased photovoltaic yield and reduced building cooling requirements, both of which are associated with economic advantages. The cool roof coating can be integrated into existing or new bifacial roof systems.This work was supported by the SUDOKET SOE2/P1/E0677 project funded by FEDER of the EU under the Interreg-Sudoe program.Peer ReviewedElsevier20232023-11-0220242024-01-09journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/398876https://dx.doi.org/10.1016/j.jobe.2023.108009reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3988762026-05-27T15:37:01Z |
| dc.title.none.fl_str_mv |
Experimental energy performance assessment of a bifacial photovoltaic system and effect of cool roof coating |
| title |
Experimental energy performance assessment of a bifacial photovoltaic system and effect of cool roof coating |
| spellingShingle |
Experimental energy performance assessment of a bifacial photovoltaic system and effect of cool roof coating Valencia Caballero, Daniel Photovoltaic power generation Roofs Energy conservation Bifacial PV Cool Roof BAPV Building Energy Performance Photovoltaic Energia solar fotovoltaica Cobertes (Construcció) Energia -- Estalvi Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica Àrees temàtiques de la UPC::Edificació |
| title_short |
Experimental energy performance assessment of a bifacial photovoltaic system and effect of cool roof coating |
| title_full |
Experimental energy performance assessment of a bifacial photovoltaic system and effect of cool roof coating |
| title_fullStr |
Experimental energy performance assessment of a bifacial photovoltaic system and effect of cool roof coating |
| title_full_unstemmed |
Experimental energy performance assessment of a bifacial photovoltaic system and effect of cool roof coating |
| title_sort |
Experimental energy performance assessment of a bifacial photovoltaic system and effect of cool roof coating |
| dc.creator.none.fl_str_mv |
Valencia Caballero, Daniel Bouchakour, Salim Luna Alloza, Álvaro|||0000-0002-4487-6659 Garcia Marco, Borja Huidobro, Ana Flores Abascal, Ivan Sanz Martínez, Asier Román, Eduardo |
| author |
Valencia Caballero, Daniel |
| author_facet |
Valencia Caballero, Daniel Bouchakour, Salim Luna Alloza, Álvaro|||0000-0002-4487-6659 Garcia Marco, Borja Huidobro, Ana Flores Abascal, Ivan Sanz Martínez, Asier Román, Eduardo |
| author_role |
author |
| author2 |
Bouchakour, Salim Luna Alloza, Álvaro|||0000-0002-4487-6659 Garcia Marco, Borja Huidobro, Ana Flores Abascal, Ivan Sanz Martínez, Asier Román, Eduardo |
| author2_role |
author author author author author author author |
| dc.subject.none.fl_str_mv |
Photovoltaic power generation Roofs Energy conservation Bifacial PV Cool Roof BAPV Building Energy Performance Photovoltaic Energia solar fotovoltaica Cobertes (Construcció) Energia -- Estalvi Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica Àrees temàtiques de la UPC::Edificació |
| topic |
Photovoltaic power generation Roofs Energy conservation Bifacial PV Cool Roof BAPV Building Energy Performance Photovoltaic Energia solar fotovoltaica Cobertes (Construcció) Energia -- Estalvi Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica Àrees temàtiques de la UPC::Edificació |
| description |
In the quest for high albedo materials that boost the energy production of bifacial photovoltaic systems, a range of material already exists for reducing building roof surface temperatures, called cool roof materials. However, there is a noticeable absence of scientific literature addressing the combination of cool roofs and bifacial photovoltaic systems. This study investigates the photovoltaic performance of a bifacial photovoltaic system with cool roof coating on the underside and its impact on floor temperature. For this purpose, four ~1kWp prototypes were installed on the terrace of the GAIA building of the UPC near Barcelona, Spain: (1) bifacial panels above a cool roof, (2) bifacial panels above normal floor, (3) bifacial panels above a normal floor with n-type solar cells encapsulated in TPO, and (4) monofacial panels. The results reveal 8.6 % higher PV yield for bifacial with cool roof compared to monofacial, and 4–4.5 % higher for bifacial (normal floor) compared to monofacial. Additionally, the cool roof coating contributes to reducing the floor temperatures, particularly in the unshaded (exposed) areas during summer (- 3.8 ¿C). The presence of photovoltaic panels has also demonstrated a positive impact on floor temperatures during both winter and summer. Thus, the cool roof coating offers two benefits: increased photovoltaic yield and reduced building cooling requirements, both of which are associated with economic advantages. The cool roof coating can be integrated into existing or new bifacial roof systems. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023 2023-11-02 2024 2024-01-09 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2117/398876 https://dx.doi.org/10.1016/j.jobe.2023.108009 |
| url |
https://hdl.handle.net/2117/398876 https://dx.doi.org/10.1016/j.jobe.2023.108009 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
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reponame:UPCommons. Portal del coneixement obert de la UPC instname:Universitat Politècnica de Catalunya (UPC) |
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Universitat Politècnica de Catalunya (UPC) |
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UPCommons. Portal del coneixement obert de la UPC |
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UPCommons. Portal del coneixement obert de la UPC |
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15.301603 |