Optimizing power grids: A valley-filling heuristic for energy-efficient electric vehicle charging.

The expansion of electric vehicles (EVs) challenges electricity grids by increasing charging demand, thereby making Demand-Side Management (DSM) strategies essential to maintaining balance between supply and demand. Among these strategies, the Valley-Filling approach has emerged as a promising metho...

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Main Authors: Guilherme Gloriano de Souza, Ricardo Ribeiro Dos Santos, Ruben Barros Godoy
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0316677
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author Guilherme Gloriano de Souza
Ricardo Ribeiro Dos Santos
Ruben Barros Godoy
author_facet Guilherme Gloriano de Souza
Ricardo Ribeiro Dos Santos
Ruben Barros Godoy
author_sort Guilherme Gloriano de Souza
collection DOAJ
description The expansion of electric vehicles (EVs) challenges electricity grids by increasing charging demand, thereby making Demand-Side Management (DSM) strategies essential to maintaining balance between supply and demand. Among these strategies, the Valley-Filling approach has emerged as a promising method to optimize renewable energy utilization and alleviate grid stress. This study introduces a novel heuristic, Load Conservation Valley-Filling (LCVF), which builds on the Classical and Optimistic Valley-Filling approaches by incorporating dynamic load conservation principles, enabling better alignment of EV charging with grid capacity. We conducted a comprehensive analysis of the heuristic across five EV charging scenarios. In both the Original and Flexible scenarios, LCVF reduced energy demand by up to 10.65%, demonstrating its adaptability and effectiveness. Notably, in the 24-hour Availability scenario, LCVF achieved a reduction of over 20% in energy demand compared to CVF. These findings indicate that LCVF could play a crucial role in enhancing real-world EV charging infrastructure, boosting energy efficiency and grid stability. By integrating DSM strategies like LCVF, energy grids can better accommodate renewable energy sources, promoting more sustainable operations.
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institution Kabale University
issn 1932-6203
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publisher Public Library of Science (PLoS)
record_format Article
series PLoS ONE
spelling doaj-art-172560417e4c4f5b93788853bc19cc8f2025-01-17T05:31:38ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01201e031667710.1371/journal.pone.0316677Optimizing power grids: A valley-filling heuristic for energy-efficient electric vehicle charging.Guilherme Gloriano de SouzaRicardo Ribeiro Dos SantosRuben Barros GodoyThe expansion of electric vehicles (EVs) challenges electricity grids by increasing charging demand, thereby making Demand-Side Management (DSM) strategies essential to maintaining balance between supply and demand. Among these strategies, the Valley-Filling approach has emerged as a promising method to optimize renewable energy utilization and alleviate grid stress. This study introduces a novel heuristic, Load Conservation Valley-Filling (LCVF), which builds on the Classical and Optimistic Valley-Filling approaches by incorporating dynamic load conservation principles, enabling better alignment of EV charging with grid capacity. We conducted a comprehensive analysis of the heuristic across five EV charging scenarios. In both the Original and Flexible scenarios, LCVF reduced energy demand by up to 10.65%, demonstrating its adaptability and effectiveness. Notably, in the 24-hour Availability scenario, LCVF achieved a reduction of over 20% in energy demand compared to CVF. These findings indicate that LCVF could play a crucial role in enhancing real-world EV charging infrastructure, boosting energy efficiency and grid stability. By integrating DSM strategies like LCVF, energy grids can better accommodate renewable energy sources, promoting more sustainable operations.https://doi.org/10.1371/journal.pone.0316677
spellingShingle Guilherme Gloriano de Souza
Ricardo Ribeiro Dos Santos
Ruben Barros Godoy
Optimizing power grids: A valley-filling heuristic for energy-efficient electric vehicle charging.
PLoS ONE
title Optimizing power grids: A valley-filling heuristic for energy-efficient electric vehicle charging.
title_full Optimizing power grids: A valley-filling heuristic for energy-efficient electric vehicle charging.
title_fullStr Optimizing power grids: A valley-filling heuristic for energy-efficient electric vehicle charging.
title_full_unstemmed Optimizing power grids: A valley-filling heuristic for energy-efficient electric vehicle charging.
title_short Optimizing power grids: A valley-filling heuristic for energy-efficient electric vehicle charging.
title_sort optimizing power grids a valley filling heuristic for energy efficient electric vehicle charging
url https://doi.org/10.1371/journal.pone.0316677
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AT ricardoribeirodossantos optimizingpowergridsavalleyfillingheuristicforenergyefficientelectricvehiclecharging
AT rubenbarrosgodoy optimizingpowergridsavalleyfillingheuristicforenergyefficientelectricvehiclecharging