The Solar Map as a Knowledge Base for Solar Energy Use

The energy performance of a building is strongly influenced by its level of solar exposure, in turn affected by the climate, built context, and building morphological characteristics. Since these are typically fixed at the earlydesign phase, performance assessment methods based on solar considerations at the urban scale are essential to support early decision-making. As the adaptation of the well-developed building performance simulation methods to the urban scale lead to complexity issues, it is of interest to verify whether simpler metrics can act as performance indicators, as is often done at the building level with quantities such as form factor. This paper first presents a review of existing methods that aim at evaluating aspects such as passive heating and photovoltaic potential. We classify each evaluation metric based on its level of complexity, before choosing a representative subset to be further examined. The goal is to test whether simple metrics fulfill their role as performance indicators when applied to neighborhoods. To do so, the selected metrics, including geometrical parameters (e.g. compactness) and solar exposure levels (e.g. annual irradiation), are compared with simulation results (e.g. heating need), taken as reference values. This is done for two sets of designs: six distinct typologies and a large number of variants from a base case typology.Results, which show various levels of correlation between simple metricsEmail address: emilie.nault@epfl.ch (Emilie Nault)Preprint submitted to Building and Environment February 9, 2015 and the reference values, highlight the limitations of using any one metric and indicate a need to revise the definition and evaluation metrics of various performance criteria for neighborhood designs.

show abstract

“…irradiation levels) to multiple outputs (irradiation levels, solar systems output, categorization of suitable area, etc.) [17].…”

Section: Performance Criteria Evaluation Metricmentioning

confidence: 99%

Review and critical analysis of early-design phase evaluation metrics for the solar potential of neighborhood designs

Nault

Peronato

Rey

et al. 2015

Building and Environment

View full text Add to dashboard Cite

show abstract

“…La disponibilidad de este tipo de datos mediante el desarrollo de visores web es cada vez más frecuente como plataforma de consulta para la ciudadanía y herramienta útil para la administración pública y las empresas en la toma de decisiones (Kanters et al, 2014). El tipo de información provista por los diferentes servicios varía, desde mapas solares que sólo proporcionan información sobre las instalaciones de paneles solares localizadas en la ciudad, como el catastro solar de Bolonia, a los mapas que estiman el potencial fotovoltaico y térmico como el mapa de recursos energéticos de la ciudad de Barcelona.…”

Section: Estado De La Cuestiónunclassified

Desarrollo De Un Modelo Geográfico Para La Evaluación Del Potencial Fotovoltaico en Entornos Urbanos

2016

View full text Add to dashboard Cite

RESUMENEste trabajo describe un modelo geográfico que evalúa la posibilidad de generar energía eléctrica en entornos urbanos, delimitando aquellas zonas de los tejados adecuadas para la instalación de sistemas fotovoltaicos. El estudio, realizado para el municipio de Miraflores de la Sierra (Madrid), se ha desarrollado basándose en un modelo urbano tridimensional generado con una nube de puntos LIDAR que aporta una adecuada descripción del entorno urbano. El modelo no sólo realiza cálculos globales para una zona, sino que también proporciona, como resultado final, datos del potencial fotovoltaico de los edificios, por lo que ha sido necesario incluir en el modelo, herramientas desarrolladas en el lenguaje de programación Python. También, utilizando la enorme versatilidad de los Sistemas de Información Geográfica e internet, se ha implementado un visor geográfico que permite la consulta, de forma abierta, de los principales resultados obtenidos.Palabras clave: LIDAR, SIG, radiación solar, energía solar, generación distribuida, autoconsumo fotovoltaico. DEVELOPMENT OF A GEOGRAPHIC MODEL FOR ESTIMATING THE PHOTOVOLTAIC POTENTIAL IN URBAN ENVIRONMENTSABSTRACT This paper describes a geographical model that evaluates the possibility of generating electricity in urban environments, defining those areas of rooftops suitable for the installation of photovoltaic systems buildings. The study, made for the municipality of Miraflores de la Sierra

show abstract

“…In recent years, the increase in terrestrial applications of solar energy has led to the study of its availability at many places over the globe (Ohmura et al, 2009;Pyrina et al, 2013;Polo, 2015;Polo et al, 2015). With the increasing use of spectrally selective devices, such as photovoltaic cells and coated glazings (Kanters et al, 2014;Wang et al, 2015), the scientific interest is not limited to the determining of the total or -broadband‖ solar irradiance reaching at the ground level, but now also encompasses its spectral distribution. This spectral distribution is also needed for industrial, biological, and medical applications such as evaluation of electrical energy, study of the photosynthetic activity of plants and evaluation of ultraviolet (UV) radiation (Bat-Oyun et al, 2012;Petkov et al, 2012;Bilbao et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Dependence of the spectral diffuse-direct irradiance ratio on aerosol spectral distribution and single scattering albedo

Kaskaoutis

Kambezidis

Dumka

et al. 2016

Atmospheric Research

View full text Add to dashboard Cite

The Solar Map as a Knowledge Base for Solar Energy Use

Cited by 67 publications

References 9 publications

Review and critical analysis of early-design phase evaluation metrics for the solar potential of neighborhood designs

Review and critical analysis of early-design phase evaluation metrics for the solar potential of neighborhood designs

Desarrollo De Un Modelo Geográfico Para La Evaluación Del Potencial Fotovoltaico en Entornos Urbanos

Dependence of the spectral diffuse-direct irradiance ratio on aerosol spectral distribution and single scattering albedo

Contact Info

Product

Resources

About