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Synergistic Food and Energy Production on Urban Rooftops: A City-Scale Framework for Integrated Photovoltaic-Aeroponic Systems
Sustainable Cities and Society
Arash Kazemian, Changying Xiang*
Highlights
• Rooftop photovoltaic and aeroponics boost urban food-energy integration and sustainability.
• Demand-first, profit-second strategy secures food supply and fast returns.
• Rooftop photovoltaic offsets 15.3% of residential electricity consumption.
• Aeroponic farming reduces land demand by up to 86.8%.
• Rooftop spatial zoning maximizes food-energy yield and land-use efficiency.
Multi-objective optimization design of high-rise high-density urban morphology and their multidimensional assessment of PV capacity
Sustainable Cities and Society
Mengmeng Wang, Zhuoying Jia, Changying Xiang*
Highlights
• Prototype design of high-rise high-density urban block morphology.
• Assessing PV capacity potential of Pareto solutions from three dimensions.
• The superior performance of Pareto solutions is demonstrated.
• Proposed design suggestions for undeveloped blocks in high-density cities.
Machine learning assisted energy performance analysis of semi-transparent photovoltaic glazing with radiative cooling film
Energy and Buildings
Volume 342, 1 September 2025, 115892
Wanting Wang, Mingyang Wang, Changying Xiang*, Chongjia Lin*,
Highlights
- Develop a STPV glazing with passive radiative cooling film, reducing 44% of U-value.
Applied ANN method to precisely predict short-term energy output of STPV glazing.
Key performance-related dynamic factors of STPV glazing are identified. - Point out future research directions for STPV glazing with radiative cooling film
Exploring the Impacts of Semi-Transparent Photovoltaic Glazing on Human Visual and Non-Visual Comfort: An Experimental Case Study in Hong Kong
Journal of Building Engineering
Wanting Wang, Changying Xiang*
Highlights
•This study comprehensively evaluates the visual and non-visual effects of rooms equipped with hollow semi-transparent photovoltaic (HSTPV) windows.
•The analysis examines the correlations between illuminance, physiological indicators, and subjective assessments
•HSTPV window provides good quality and quantity of daylight.
Energy performance and aesthetic perception of colored building-integrated photovoltaic application – A case study in Hong Kong
Energy and Buildings
Volume 344, 1 October 2025, 116038
Yuxin Bao, Changying Xiang*
Highlights
• Practical experience of a colored BIPV renovation project.
• Energy performance analysis of colored BIPV systems under adverse conditions.
• Aesthetic perception and systems evaluation based on real field trips.
• A framework for colored BIPV application.
• Case study of a public housing building.
Assessing the effects of photovoltaic and solar thermal ratios on performance, cost, and emissions in combined solar configurations
Applied Energy
Volume 384, 15 April 2025, 125438
Arash Kazemian, Hongxing Yang, Changying Xiang*
Parametric design for combined solar facades for high-rise residential buildings
Sustainable Energy Technologies and Assessments
Volume 74, February 2025, 104167
Kaiyan Xu, Shenghui Song, Changying Xiang*
Study on the Application of a Dynamic Photovoltaic Integrated Light Shelf for Office Buildings
Energy
Volume 314, 1 January 2025, 134205
Wanting Wang, Changying Xiang*
Highlights
• The energy performance of a novel dynamic PV integrated light shelf system was evaluated.
• The daylighting performance of the novel system was compared with traditional PV shading and light shelf.
• The economic feasibility of the novel system in different modes was analyzed.
A Comprehensive Review of Machine Learning Applications in Perovskite Solar Cells: Materials Discovery, Device Performance, Process Optimization and Systems Integration
Materials Today Energy
Volume 47, January 2025, 101742
Ling Mao, Changying Xiang*
Optimizing the tilt angle of kinetic photovoltaic shading devices considering energy consumption and power Generation— Hong Kong case
Energy and Buildings
Volume 326, 1 January 2025, 115072
Mengmeng Wang, Zhuoying Jia, Lulu Tao, Changying Xiang*
Assessing urban morphology's impact on solar potential of high-rise facades in Hong Kong using machine learning: An application for FIPV optimization
Sustainable Cities and Society
Volume 117, 15 December 2024, 105978
Lulu Tao, Mengmeng Wang, Changying Xiang*
Toward a Smart Zero Carbon Future -Literature Review and Case Studies on Architectural Design Strategies for BIPV Systems in High-density Communities
Sustainable Built Environment 2023 Asia-Pacific Regional Conference, Shenzhen, China, 23-24 November 2023
Xiang, Changying*; Wang, Wanting; Leung, Man Kit; Poon, Dicken
Green roofs and facades with integrated photovoltaic system for zero energy eco-friendly building – A review
Sustainable Energy Technologies and Assessments
Volume 60, December 2023, 103426
Wanting Wang, Hongxing Yang, Changying Xiang*
Façade Integrated Photovoltaics design for high-rise buildings with balconies, balancing daylight, aesthetic and energy productivity performance
Journal of Building Engineering, v. 57, 1 October 2022, article number 104950
Xiang*, Changying; Matusiak, Barbara Szybinska
Aesthetic evaluation of facade integrated coloured photovoltaics designs – an international online survey
Journal of the International Colour Association, v. 28, January 2022, p. 24-30
Xiang, Changying*; Matusiak, Barbara Szybinska
Tailored Architectural Design Method for Coloured Façade Integrated Photovoltaics: An Example from the Nordic Built Environment
Proceedings of the ISES Solar World Conference / International Solar Energy Society. Freiburg, Germany : International Solar Energy Society, 2022, p. 1228-1239
Changying, Xiang*; Gabriele, Lobaccaro; Barbara Szybinska, Matusiak
Pixelization approach for façade integrated coloured photovoltaics-with architectural proposals in city context of Trondheim, Norway
Solar Energy, Volume 224, August 2021, Pages 1222-1246
Changying Xiang*, Barbara Szybinska Matusiak, Arne Røyset, Tore Kolås
The Design of Façade-Integrated Vertical Greenery to Mitigate the Impacts of Extreme Weather: A Case Study from Hong Kong
Buildings, v. 13, (11), November 2023, article number 2865
Xiang, Changying; Tao, Lulu
A comprehensive review on design approaches of adaptive photovoltaic façade
The 3rd International Conference on Sustainable Buildings and Structures (ICSBS 2023), Xi’an Jiaotong-Liverpool University, Suzhou, China, 18-20 August 2023
Liang, Jiaxin; Xiang, Changying
Colour Design and Spatial Quality- A Critical Analysis of the Mosaic Colours in Hong Kong Mass Transit Railway Stations
15th Congress of the International Colour Association (AIC2023), Pathum Thani, Thailand, 28 November – 2 December 2023
Liang, Jiaxin; Chang, Wing Lum; Wang, Wanting; Xiang, Changying
Colour Design for Façade Integrated Photovoltaics on Campus - A Case Study in Hong Kong
15th AIC Congress 2023, Chiang-Rai, Thailand, 28 November – 2 December 2023
Wang, Wanting; Xiang, Changying
Exploration of Conceptual Design Generation based on the Deep Learning Model-Discussing the Application of AI Generator to the Preliminary Architectural Design Process
xArch symposium-Creativity in the age of digital reproduction, Xi’an Jiaotong-Liverpool University, Suzhou, China, 11-12 November 2023
Bao, Yuxin; Xiang, Changying
Modular façade retrofit with integrated photovoltaics-current status and future development demands
3rd International Conference on Sustainable Buildings and Structures (ICSBS 2023), Xi’an Jiaotong-Liverpool University, Suzhou, China, 18-20 August 2023
Wang, Wanting; Xiang, Changying
The impact of surface properties on photovoltaics' colour angular sensitivity: A comparison study for façade integration
Color Research and Application, v. 46, (3), June 2021, p. 524-537
Xiang, Changying; Green, Phil; Matusiak, Barbara Szybinska
A State of the Art of Design Criteria for Façade Integrated Photovoltaics
Proceedings of the EU PVSEC 2021 / edited by J. M. Almeida Serra, R. Kenny, P. Helm. Munich, Germany : WIP Wirtschaft und Infrastruktur GmbH & Co Planungs-KG, 2021, p. 1545-1550
Xiang, Changying; Matusiak, Barbara Szybinska
Aesthetic Evaluation Criteria for Façade Integrated Photovoltaics in Urban Context
Proceedings of the EU PVSEC 2021 / edited by J. M. Almeida Serra, R. Kenny, P. Helm. Munich, Germany : WIP Wirtschaft und Infrastruktur GmbH & Co Planungs-KG, 2021, p. 1540-1544
Xiang, Changying; Moscoso, Claudia; Matusiak, Barbara Szybinska
Colour and Gloss of PV-modules for Building Integration
Norwegian Solar Cell Conference (NSCC 2021), Oslo, Norway, 1-2 November 2021
Kolås, T.; Røyset, A.; Nordseth, Ø; You, C.C.; Matusiak, Barbara Szybinska; Xiang, Changying
Conference paper
The Impact of Surface Properties on Photovoltaics’ Colour Angular Sensitivity- A Comparison Study for Façade Integration
Proceedings of the International Colour Association (AIC) Conference 2020 / International Colour Association. Australia : International Colour Association, 2020, p. 196-201
Xiang, Changying; Green, Phil; Matusiak, Barbara Szybinska
Facade Integrated Photovoltaic, state of the art of Experimental Methodology
IOP Conference Series: Earth and Environmental Science, v. 352, (1), November 2021, article number 012062
Xiang, Changying; Matusiak, Barbara Szybinska
Stormwater management and urban planning strategies for sponge city construction in context of climate change
Annual National Planning Conference 2015, Guiyang, China, 19-21 September 2015
Wu, K.; Zou, Z.; Shan, L.; Xiang, Changying
Strategies of dealing with rainstorm disaster of Subway station
The 10th International Symposium on Environment-Behavior Studies, Changsha, China, 20 October 2012
Xiang, Changying; Zhang, S.
The planning of transport network and medical facilities for small towns’ disaster prevention and mitigation
Annual National Planning Conference 2011, Nanjing, China, 20-22 September 2011
Zhang, S.; Xiang, Changying