A method for predicting the economic potential of (building-integrated) photovoltaics in urban areas based on hourly Radiance simulations

Fath, Karoline; Stengel, Julian; Sprenger, Wendelin; Wilson, Helen Rose; Schultmann, Frank; Kuhn, Tilmann E.

doi:10.1016/j.solener.2015.03.023

Cited by 92 publications

(65 citation statements)

References 32 publications

(54 reference statements)

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“…Acquisition-wise, they can be automatically derived from point clouds (Suveg and Vosselman, 2004;Brenner, 2005;Kada and McKinley, 2009). Usability-wise, they can be used in a wider range of applications than LOD1, such as the estimation of the solar potential of rooftops (Fath et al, 2015;Biljecki et al, 2015a)), or as an improvement in accuracy over LOD1 (e.g. in energy demand estimation (Kaden and Kolbe, 2014)).…”

Section: Lod2 Familymentioning

confidence: 99%

An improved LOD specification for 3D building models

Biljecki

Ledoux

Stoter

2016

Computers, Environment and Urban Systems

335

176

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The level of detail (LOD) concept of the OGC standard CityGML 2.0 is intended to differentiate multi-scale representations of semantic 3D city models. The concept is in practice principally used to indicate the geometric detail of a model, primarily of buildings. Despite the popularity and the general acceptance of this categorisation, we argue in this paper that from a geometric point of view the five LODs are insufficient and that their specification is ambiguous.We solve these shortcomings with a better definition of LODs and their refinement. Hereby we present a refined set of 16 LODs focused on the grade of the exterior geometry of buildings, which provide a stricter specification and allow less modelling freedom. This series is a result of an exhaustive research into currently available 3D city models, production workflows, and capabilities of acquisition techniques. Our specification also includes two hybrid models that reflect common acquisition practices. The new LODs are in line with the LODs of CityGML 2.0, and are intended to supplement, rather than replace the geometric part of the current specification. While in our paper we focus on the geometric aspect of the models, our specification is compatible with different levels of semantic granularity. Furthermore, the improved LODs can be considered format-agnostic.Among other benefits, the refined specification could be useful for companies for a better definition of their product portfolios, and for researchers to specify data requirements when presenting use cases of 3D city models. We support our refined LODs with experiments, proving their uniqueness by showing that each yields a different result in a 3D spatial operation.Keywords: Level of detail; 3D city modelling; 3D GIS; 3D building models; CityGML; Scale Highlights• CityGML LODs are an industry standard for conveying the grade of 3D city models.• The 5 LODs are not defined precisely, and they are not sufficient for this purpose.• We present a refined series of 16 LODs that overcomes these issues.

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Section: Lod2 Familymentioning

confidence: 99%

An improved LOD specification for 3D building models

Biljecki

Ledoux

Stoter

2016

Computers, Environment and Urban Systems

335

176

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“…The definitions of energy potential vary and depend on the objectives of the studies. Fath [57] defines the theoretical, technical and economic potential, while Yeo [58] also defines the market potential: (i) the theoretical power is determined by the resource, (ii) the technical potential is characterized by the technology performance, topography or the surface of the ground, (iii) the economic potential is restricted by the technology prices or life span, and (iv) the market potential is related to the regulatory conditions and policies of the locality or to competition with other existing energy sources.…”

Section: Renewable Energy In the Citiesmentioning

confidence: 99%

“…Research in Karlsruhe City (Germany) considers the photovoltaic technology on rooftops, integrated or not with the building (modules assume the role of protective materials from rain or solar control) [57]. In the town of Zernes (Switzerland), the model developed by Mavromatidis [73] was applied.…”

Section: Photovoltaic Energymentioning

confidence: 99%

The Role of Renewable Energy in the Promotion of Circular Urban Metabolism

2017

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Cities are human creations requiring large amounts of materials and energy. Constant consumption of resources exerts pressure on the environment not only due to its exploitation, but also because once processed, the resources produce waste, emissions or effluents. Cities are responsible for more than three quarters of the emissions of greenhouse gases. It is anticipated that the urban population will increase by up to 80% by the mid-21st century, which will make the current energy model unsustainable, as it is based on the intensive use of fossil resources. A change in urban planning is required to meet the energy requirements of cities. Several studies mention that renewable energy must be used in cities, but they do not identify the resources and technologies that can be used to promote circular urban metabolism. A review of the literature establishes that there are eleven renewable technologies with different degrees of maturity that could reduce the import of energy resources, which would contribute to changing the metabolic linear model into a circular model. However, the applicability of the different possibilities is conditional upon the availability of resources, costs, policies and community acceptance.

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“…Photovoltaic potential is often assessed by technological or economical evaluation (Fath et al, 2015;Lang, Ammann, & Girod, 2016;Mondal & Islam, 2011;El-Shimy, 2009;Seng, Lalchand, & Lin, 2008). The potential has been evaluated by photovoltaic energy generation based on total annual solar radiation (Hofierka & Kaňuk, 2009;Lukač et al, 2014), surfaces for calculation predictions have mostly been limited only to roof implementation, and results generally displayed as numbers or diagrams (Matrawy, Mahrous, & Youssef, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…These software calculate for a large-scale area thus resulting in a large deviation on calculations when implemented on an individual building. Several software can be employed in building scale such as Radiance, EnergyPlus, and TRNSYS software (Vuong, Kamel, & Fung, 2015;Fath et al, 2015;Shan et al, 2014). However, the simulations performed by these software are based on several simplifications of building form.…”

Section: Introductionmentioning

confidence: 99%

3D Insolation Colour Rendering for Photovoltaic Potential: Evaluation on Equatorial Residential Building Envelope

Fitriaty

Shen

Sugihara

et al. 2017

IRSPSD International

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Abstract:Photovoltaic (PV) installation potential on residential building envelope in equatorial region was analysed by 3D insolation colour rendering employing BIM Revit solar analysis tool. Monthly global solar radiation calculation was employed to investigate solar potential in study case area. Actual energy consumption of residential sector was used as a base to predict energy demand for next 10 years. Predicted energy demand was then used to calculate the area needed for photovoltaic installation to balance future energy demand. The energy consumption by residential building was divided into five different installed electrical power capacities namely 450 Watt, 900 Watt, 1300 Watt, 2200 Watt and 3500-6600 Watt. Study results suggest that the potential location of photovoltaic panel installation on detached houses is on the roof, East, and West walls. Abundant solar energy in equatorial region was proved by high potential of PV energy generation 7 -9 kW/m² for amorphous silicon, 17 -18 kW/m² for polycrystalline silicon, and 19 -23 kW/m² for monocrystalline silicon. The roof element alone can provide sufficient electrical energy generated by installed photovoltaic panels for the next 10 years. The area needed to supply 450W -6600W installed power capacity were 13 -75 m² for monocrystalline silicon, 23 -120 m² for polycrystalline silicon, and 50 -259 m² for amorphous silicon. To conclude, implementation of photovoltaic installations on residential buildings have a huge potential to secure not only recent energy consumption, but also future energy demand.

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A method for predicting the economic potential of (building-integrated) photovoltaics in urban areas based on hourly Radiance simulations

Cited by 92 publications

References 32 publications

An improved LOD specification for 3D building models

An improved LOD specification for 3D building models

The Role of Renewable Energy in the Promotion of Circular Urban Metabolism

3D Insolation Colour Rendering for Photovoltaic Potential: Evaluation on Equatorial Residential Building Envelope

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