Numerical Modeling and Analysis of Shadow Flicker Using Solar Path Functions for Enhanced Predictive Accuracy

Shadow flicker caused by wind turbine blades passing through sunlight can significantly affect nearby residential buildings, raising environmental and regulatory concerns in wind farm development. The accurate assessment of shadow flicker exposure is critical for compliance and minimizing community...

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Main Authors: Nicolai Radke, Patrick E. M. De Smet, Erika Ábrahám
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/18/2/352
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author Nicolai Radke
Patrick E. M. De Smet
Erika Ábrahám
author_facet Nicolai Radke
Patrick E. M. De Smet
Erika Ábrahám
author_sort Nicolai Radke
collection DOAJ
description Shadow flicker caused by wind turbine blades passing through sunlight can significantly affect nearby residential buildings, raising environmental and regulatory concerns in wind farm development. The accurate assessment of shadow flicker exposure is critical for compliance and minimizing community impacts. We present a novel method for accurately determining the exposure of shadow flicker from wind turbines on residential buildings, addressing a key regulatory concern in wind farm planning. Current simulation techniques rely on discrete sampling of solar positions, resulting in potential inaccuracies tied to sampling resolution. Our proposed approach models shadow flicker as a <i>continuous</i> function and applies numerical minimization and numerical root finding to compute the duration of exposure. Our evaluation proves that this method achieves a superior balance between precision and computational efficiency, significantly improving existing techniques.
format Article
id doaj-art-e522973ab3784cbebc678df111995de8
institution Kabale University
issn 1996-1073
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publishDate 2025-01-01
publisher MDPI AG
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series Energies
spelling doaj-art-e522973ab3784cbebc678df111995de82025-01-24T13:31:10ZengMDPI AGEnergies1996-10732025-01-0118235210.3390/en18020352Numerical Modeling and Analysis of Shadow Flicker Using Solar Path Functions for Enhanced Predictive AccuracyNicolai Radke0Patrick E. M. De Smet1Erika Ábrahám2Theory of Hybrid Systems Research Group, RWTH Aachen University, 52062 Aachen, GermanyFaculty of Compupter Science, University of Vienna, 1010 Vienna, AustriaTheory of Hybrid Systems Research Group, RWTH Aachen University, 52062 Aachen, GermanyShadow flicker caused by wind turbine blades passing through sunlight can significantly affect nearby residential buildings, raising environmental and regulatory concerns in wind farm development. The accurate assessment of shadow flicker exposure is critical for compliance and minimizing community impacts. We present a novel method for accurately determining the exposure of shadow flicker from wind turbines on residential buildings, addressing a key regulatory concern in wind farm planning. Current simulation techniques rely on discrete sampling of solar positions, resulting in potential inaccuracies tied to sampling resolution. Our proposed approach models shadow flicker as a <i>continuous</i> function and applies numerical minimization and numerical root finding to compute the duration of exposure. Our evaluation proves that this method achieves a superior balance between precision and computational efficiency, significantly improving existing techniques.https://www.mdpi.com/1996-1073/18/2/352renewable energywind farm planningshadow flickerexposure modelingsolar position modelingnumerical analysis
spellingShingle Nicolai Radke
Patrick E. M. De Smet
Erika Ábrahám
Numerical Modeling and Analysis of Shadow Flicker Using Solar Path Functions for Enhanced Predictive Accuracy
Energies
renewable energy
wind farm planning
shadow flicker
exposure modeling
solar position modeling
numerical analysis
title Numerical Modeling and Analysis of Shadow Flicker Using Solar Path Functions for Enhanced Predictive Accuracy
title_full Numerical Modeling and Analysis of Shadow Flicker Using Solar Path Functions for Enhanced Predictive Accuracy
title_fullStr Numerical Modeling and Analysis of Shadow Flicker Using Solar Path Functions for Enhanced Predictive Accuracy
title_full_unstemmed Numerical Modeling and Analysis of Shadow Flicker Using Solar Path Functions for Enhanced Predictive Accuracy
title_short Numerical Modeling and Analysis of Shadow Flicker Using Solar Path Functions for Enhanced Predictive Accuracy
title_sort numerical modeling and analysis of shadow flicker using solar path functions for enhanced predictive accuracy
topic renewable energy
wind farm planning
shadow flicker
exposure modeling
solar position modeling
numerical analysis
url https://www.mdpi.com/1996-1073/18/2/352
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AT patrickemdesmet numericalmodelingandanalysisofshadowflickerusingsolarpathfunctionsforenhancedpredictiveaccuracy
AT erikaabraham numericalmodelingandanalysisofshadowflickerusingsolarpathfunctionsforenhancedpredictiveaccuracy