Methodology for Estimating Solar Potential on Multiple Building Rooftops for Photovoltaic Systems

Journal Article · Tue Jan 01 04:00:00 EST 2013 · Sustainable Cities and Society

DOI:https://doi.org/10.1016/j.scs.2013.01.002· OSTI ID:1060246

Kodysh, Jeffrey B. ^[1]; Omitaomu, Olufemi A. ^[2]; Bhaduri, Budhendra L. ^[1]; Neish, Bradley S. ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)

In this paper, a methodology for estimating solar potential on multiple building rooftops is presented. The objective of this methodology is to estimate the daily or monthly solar radiation potential on individual buildings in a city/region using Light Detection and Ranging (LiDAR) data and a geographic information system (GIS) approach. Conceptually, the methodology is based on the upward-looking hemispherical viewshed algorithm, but applied using an area-based modeling approach. The methodology considers input parameters, such as surface orientation, shadowing effect, elevation, and atmospheric conditions, that influence solar intensity on the earth s surface. The methodology has been implemented for some 212,000 buildings in Knox County, Tennessee, USA. Based on the results obtained, the methodology seems to be adequate for estimating solar radiation on multiple building rooftops. The use of LiDAR data improves the radiation potential estimates in terms of the model predictive error and the spatial pattern of the model outputs. This methodology could help cities/regions interested in sustainable projects to quickly identify buildings with higher potentials for roof-mounted photovoltaic systems.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1060246
• Journal Information: Sustainable Cities and Society, Journal Name: Sustainable Cities and Society Vol. 8; ISSN 2210-6707
• Publisher: Elseiver
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY