Ray-Tracing modeling for urban photovoltaic energy planning and management

Kosmopoulos, Panagiotis; Dhake, Harshal; Kartoudi, Danai; Tsavalos, Anastasios; Koutsantoni, Pelagia; Katranitsas, Apostolos; Lavdakis, Nikolaos; Mengou, Eftihia; Kashyap, Yashwant

doi:10.1016/j.apenergy.2024.123516

Cited by 3 publications

(2 citation statements)

References 46 publications

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“…The majority of the studies are carried out at the building, district, or city level [1,29] using detailed remote-sensing imagery techniques such as LiDAR or 3D city models to obtain building rooftop information, which are often costly, data-intensive, and timeconsuming [1,22]. A recent study integrated data from Cesium 3D tiles, Copernicus Urban Atlas Building heights, and Google Earth in an advanced Ray-Tracing-based modeling approach for the city of Athens to determine the exploitable rooftop areas and their RTPs [38]. Three-dimensional building data from Google Earth Pro were also used in a study [39] for enhancing the accuracy of building height models in the city of Bandung, Indonesia.…”

Section: Introductionmentioning

confidence: 99%

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Application of Satellite Data for Estimating Rooftop Solar Photovoltaic Potential

Sander,

Schindler,

Jung

2024

Remote Sensing

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Rooftop solar photovoltaics can significantly contribute to global energy transitions by providing clean, decentralized energy without the need for new land, thereby avoiding land-use conflicts. It serves as a valuable complement to other renewable-energy sources and is expected to play a crucial role in future electricity systems. Due to the spatiotemporal variability in the solar radiation on roof surfaces, it is essential to determine the potentials of the rooftop photovoltaics and its variations in specific regions. In Germany, this potential was assessed in 5 km × 5 km zones, as well as at the federal-state and national levels. High-quality satellite and reanalysis data were used to determine the power output of the solar photovoltaics. Additionally, high-resolution (2 m × 2 m) European Settlement Map data, calibrated with solar cadastre data, were utilized to evaluate different scenarios. The results show that the potential is concentrated in larger urban areas and the southwestern part of Germany due to the availability of rooftop space and solar radiation. Overall, the national rooftop areas are substantial across all scenarios, ranging from 2100 to 4500 km2. The applied methods and scenarios provide a straightforward way to reveal the spatiotemporal variability and define realistic ranges of the solar photovoltaic potential without requiring detailed information about each building. However, assessing the rooftop photovoltaic potential remains challenging and uncertain due to the lack of large-scale, high-resolution data on building characteristics and the complexity of the solar radiation distribution in urban environments.

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Section: Introductionmentioning

confidence: 99%

“…So far, studies applying 3D models to the national or global scales are lacking. Current methods, including cloud computing, however, provide processing speed improvements [38], enhancing future assessments.…”

Section: Introductionmentioning

confidence: 99%

Application of Satellite Data for Estimating Rooftop Solar Photovoltaic Potential

Sander,

Schindler,

Jung

2024

Remote Sensing

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Building a Sustainable Future: Investigating the Role and Contributions of Higher Education Institutions Instructors in Promoting Social Sustainability—Empirical Evidence from Ethiopia

Tafese,

Kopp,

Likassa

2024

Education Sciences

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The need for social sustainability through education is greater than ever. Despite numerous studies on this topic, there is still a gap in the research on the role and contribution of public higher education instructors in social sustainability. To address this, the researchers of this study conducted a study on the contributions of instructors in public higher education to social sustainability in Ethiopia. The study aimed to provide evidence for policy briefs and guide public universities. A quantitative method was employed, and the reliability of the structured questionnaire was tested using Cronbach’s alpha. The data were analyzed by descriptive and inferential statistics. The findings revealed that 62.9% of instructors contributed to social sustainability, with significant predictors identified at 5%. Research and applied university instructors were 3.36 and 2.20 times more likely, respectively, to contribute compared to comprehensive universities. Furthermore, the results indicated that females were 0.64 times less likely to participate compared to males. Instructors who were optimistic about research implementation were 4.9 times more likely to engage, and those indicating “probably yes” were 18.5 times more likely as compared to the reference category. Educators involved in multiple roles were 0.13 times less likely to contribute than those focused solely on teaching. Ethiopia’s Ministry of Education and university leaders should support female teachers and master’s-level faculty at applied and comprehensive universities.

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Photovoltaics Energy Potential in the Largest Greek Cities: Atmospheric and Urban Fabric Effects, Climatic Trends Influences and Socio-Economic Benefits

Vigkos,

Kosmopoulos

2024

Energies

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This comprehensive study explores the influence of aerosols and clouds on solar radiation in the urban environments of nine of Greece’s largest cities over the decade from 2014 to 2023. Utilizing a combination of Earth Observation data, radiative transfer models, and geographic information systems, the research undertook digital surface modeling and photovoltaic simulations. The study meticulously calculated the optimal rooftop areas for photovoltaic installation in these cities, contributing significantly to their energy adequacy and achieving a balance between daily electricity production and demand. Moreover, the research provides an in-depth analysis of energy and economic losses, while also highlighting the environmental benefits. These include a reduction in pollutant emissions and a decrease in the carbon footprint, aligning with the global shift towards local energy security and the transformation of urban areas into green, smart cities. The innovative methodology of this study, which leverages open access data, sets a strong foundation for future research in this field. It opens up possibilities for similar studies and has the potential to contribute to the creation of an updated, comprehensive solar potential map for continental Greece. This could be instrumental in climate change mitigation and adaptation strategies, thereby promoting sustainable urban development and environmental preservation.

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Ray-Tracing modeling for urban photovoltaic energy planning and management

Cited by 3 publications

References 46 publications

Application of Satellite Data for Estimating Rooftop Solar Photovoltaic Potential

Application of Satellite Data for Estimating Rooftop Solar Photovoltaic Potential

Building a Sustainable Future: Investigating the Role and Contributions of Higher Education Institutions Instructors in Promoting Social Sustainability—Empirical Evidence from Ethiopia

Photovoltaics Energy Potential in the Largest Greek Cities: Atmospheric and Urban Fabric Effects, Climatic Trends Influences and Socio-Economic Benefits

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