Modelling solar potential in the urban environment: State-of-the-art review

Freitas, Sara; Catita, Cristina; Redweik, Paula; Brito, M.C.

doi:10.1016/j.rser.2014.08.060

Cited by 364 publications

(187 citation statements)

References 66 publications

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“…Furthermore, some researchers use dense point clouds rather than semantic 3D city models (e.g., [111][112][113][114]). For a comprehensive overview of research on solar potential applications see the recent review of Freitas et al [115].…”

Section: Estimation Of the Solar Irradiationmentioning

confidence: 99%

Applications of 3D City Models: State of the Art Review

Biljecki

Stoter

Ledoux

et al. 2015

IJGI

612

380

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In the last decades, 3D city models appear to have been predominantly used for visualisation; however, today they are being increasingly employed in a number of domains and for a large range of tasks beyond visualisation. In this paper, we seek to understand and document the state of the art regarding the utilisation of 3D city models across multiple domains based on a comprehensive literature study including hundreds of research papers, technical reports and online resources. A challenge in a study such as ours is that the ways in which 3D city models are used cannot be readily listed due to fuzziness, terminological ambiguity, unclear added-value of 3D geoinformation in some instances, and absence of technical information. To address this challenge, we delineate a hierarchical terminology (spatial operations, use cases, applications), and develop a theoretical reasoning to segment and categorise the diverse uses of 3D city models. Following this framework, we provide a list of identified use cases of 3D city models (with a description of each), and their applications. Our study demonstrates that 3D city models are employed in at least 29 use cases that are a part of more than 100 applications. The classified inventory could be useful for scientists as well as stakeholders in the geospatial industry, such as companies and national mapping agencies, as it may serve as a reference document to better position their operations, design product portfolios, and to better understand the market.

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Section: Estimation Of the Solar Irradiationmentioning

confidence: 99%

Applications of 3D City Models: State of the Art Review

Biljecki

Stoter

Ledoux

et al. 2015

IJGI

612

380

View full text Add to dashboard Cite

show abstract

“…In their review, Zotti et al [16] carried out experimental validation of Preetham and CIE models and pointed out on some issues of Preetham model, particularly in low sun position, suggesting improvements using spherical harmonics as proposed by [119]. Preetham et al later improved this model by employing a separate analytical formula for adding a solar emitter of appropriate radiant intensity to account these issues.…”

Section: Naturalmentioning

confidence: 99%

“…Freitas et al [16] investigated a wide range of methods, from simple 2D analytical models to more sophisticated 3D representation and numerical analysis coupled with GIS tools, for modelling solar potential in the urban environments quantifying dynamic overshadowing impact on solar radiation availability. The review concluded that solar mapping tools, in general, are capable of dealing with some level of complexity while future improvements in diffuse radiation and energy conversion models are needed.…”

Section: Introductionmentioning

confidence: 99%

State-of-the-art review of solar design tools and methods for assessing daylighting and solar potential for building-integrated photovoltaics

Jakica

2018

Renewable and Sustainable Energy Reviews

132

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Solar design can take many different forms across disciplines with different methodologies and goals, ranging from acquiring architectural visual effects to assessing illumination for daylighting and solar radiation potential on building surfaces for PV implementation. Furthermore, a capability of solar design methodologies and tools to accurately and time efficiently simulate light phenomena can greatly influence performance results and design decisions. This is especially important in complex cases such as dense urban settings with the significant surface shadowing, and vertical facades including daylighting devices and photovoltaics. Consequently, choosing a suitable approach and tool for each design phase is essential for achieving unique design and performance goals. This paper was carried out within the framework of IEA-PVPS Task 15 -BIPV and it aims to facilitate this decision for all parties involved in solar design process. Here presented, is an overview of almost 200 solar design tools, analyzing their numerous features regarding accuracy, complexity, scale, computation speed, representation as well as building design process integration in about 50 2D/3D, CAD/CAM and BIM software environments. Furthermore, tools from various fields have been analysed in a broad interdisciplinary context of solar design with a particular attention for being used for Daylighting and Building-Integrated Photovoltaics (BIPV) purposes. This approach should open many new perspectives on a potentially wider multidisciplinary usage and interpretation of solar design tools, sometimes well beyond their initial scope of work.

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“…A full review of solar potential modelling approaches can be found in (Freitas et al, 2015). In a first approach, Scartezzini et al (2002) used cost intensive ray tracing simulation techniques to identify the spatial distribution of solar radiation and daylight fluxes over building façades and roofs regarding active and passive solar energy.…”

Section: State Of the Art For The Calculation Of Soalr Potential On Vmentioning

confidence: 99%

Estimation of Solar Energy on Vertical 3d Building Walls on City Quarter Scale

Jaugsch

Löwner

2016

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Commission VI, WG VI/4 KEY WORDS: Urban photovoltaic potential, vertical walls, renewable energy, 3D building model ABSTRACT:In urban areas, solar energy is one promising source of renewable energy to achieve the EU parliament's goal of reducing CO2 emissions by 20 % compared to 1990. Although annual radiation on vertical walls is lower than that on roof surfaces, they are larger in area and, therefore may contribute to energy production. On the other hand, the modelling of shadowing effects is cost intensive in an complex urban environment. Here we present a method for the calculation of solar potential on vertical walls for simple 2D maps with additional building height information. We introduced observer point columns that enable a fast decision whether a whole vertical set of observer points is illuminated or not. By the introduction of a maximum shade length, we reduce processing time in ArcGIS. 206,291 points of 130 buildings have been analysed in time steps of 15 minutes resulting in 15,769 pairs of solar angles. Results disprove the potential of vertical walls serving to fill the winter gap of roof mounted solar energy plants. Best wall orientation for the deployment of solar panels are west and east in summer, whereas it is southeast in winter.

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Modelling solar potential in the urban environment: State-of-the-art review

Cited by 364 publications

References 66 publications

Applications of 3D City Models: State of the Art Review

Applications of 3D City Models: State of the Art Review

State-of-the-art review of solar design tools and methods for assessing daylighting and solar potential for building-integrated photovoltaics

Estimation of Solar Energy on Vertical 3d Building Walls on City Quarter Scale

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