A Novel Approach to Assessing the Cost Competitiveness of Self-Consumption Photovoltaic Systems

Most existing studies on the cost -competitiveness of self-consumption PV systems fail to jointly consider key technical, economic, and user-specific factors—such as the share of PV electricity self-consumed, energy exported or imported from the grid, and time-of-use elec-tricity pricing—all of whic...

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Autores: Sepúlveda-Vélez, Fredy, López Talavera , Diego, Micheli, Leonardo, Nofuentes , Gustavo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2026
País:España
Institución:Universidad de Jaén
Repositorio:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
OAI Identifier:oai:ruja.ujaen.es:10953/7598
Acceso en línea:https://doi.org/10.3390/app16052425
https://www.mdpi.com/2076-3417/16/5/2425
https://hdl.handle.net/10953/7598
Access Level:acceso abierto
Palabra clave:Photovoltaic
Cost competitiveness
Self-consumption
Electricity demand
3322.05
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spelling A Novel Approach to Assessing the Cost Competitiveness of Self-Consumption Photovoltaic SystemsSepúlveda-Vélez, FredyLópez Talavera , DiegoMicheli, LeonardoNofuentes , GustavoPhotovoltaicCost competitivenessSelf-consumptionElectricity demand3322.05Most existing studies on the cost -competitiveness of self-consumption PV systems fail to jointly consider key technical, economic, and user-specific factors—such as the share of PV electricity self-consumed, energy exported or imported from the grid, and time-of-use elec-tricity pricing—all of which significantly influence investment viability. To address these gaps, this study introduces a novel method based on a new model to calculate the unit cost of electricity consumption from the user’s perspective (CEC, in €/kWh). The array DC power rating is then optimally sized—assuming ideal orientation and tilt—to minimize CEC. A self-consumption PV system is considered cost-competitive when the annualized minimized CEC is lower than the applicable regulated electricity tariff. Colombia is selected as a case study to demonstrate the novel method due to the limited deployment and analy-sis of self-consumption PV systems in the country. The method is applied across residen-tial, commercial, and industrial sectors in various locations. The resulting annualized minimized CEC values (0.35–8.85 c€/kWh) are consistently below the corresponding regu-lated tariffs, demonstrating the economic viability of properly sized PV systems. The method’s adaptability to international tariff frameworks makes it a valuable tool for global application and a useful resource for policymakers and stakeholders.MDPI202620262026info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.3390/app16052425https://www.mdpi.com/2076-3417/16/5/2425https://hdl.handle.net/10953/7598reponame:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaéninstname:Universidad de JaénInglésApplied SciencesAttribution 3.0 Spainhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:ruja.ujaen.es:10953/75982026-06-24T12:41:07Z
dc.title.none.fl_str_mv A Novel Approach to Assessing the Cost Competitiveness of Self-Consumption Photovoltaic Systems
title A Novel Approach to Assessing the Cost Competitiveness of Self-Consumption Photovoltaic Systems
spellingShingle A Novel Approach to Assessing the Cost Competitiveness of Self-Consumption Photovoltaic Systems
Sepúlveda-Vélez, Fredy
Photovoltaic
Cost competitiveness
Self-consumption
Electricity demand
3322.05
title_short A Novel Approach to Assessing the Cost Competitiveness of Self-Consumption Photovoltaic Systems
title_full A Novel Approach to Assessing the Cost Competitiveness of Self-Consumption Photovoltaic Systems
title_fullStr A Novel Approach to Assessing the Cost Competitiveness of Self-Consumption Photovoltaic Systems
title_full_unstemmed A Novel Approach to Assessing the Cost Competitiveness of Self-Consumption Photovoltaic Systems
title_sort A Novel Approach to Assessing the Cost Competitiveness of Self-Consumption Photovoltaic Systems
dc.creator.none.fl_str_mv Sepúlveda-Vélez, Fredy
López Talavera , Diego
Micheli, Leonardo
Nofuentes , Gustavo
author Sepúlveda-Vélez, Fredy
author_facet Sepúlveda-Vélez, Fredy
López Talavera , Diego
Micheli, Leonardo
Nofuentes , Gustavo
author_role author
author2 López Talavera , Diego
Micheli, Leonardo
Nofuentes , Gustavo
author2_role author
author
author
dc.subject.none.fl_str_mv Photovoltaic
Cost competitiveness
Self-consumption
Electricity demand
3322.05
topic Photovoltaic
Cost competitiveness
Self-consumption
Electricity demand
3322.05
description Most existing studies on the cost -competitiveness of self-consumption PV systems fail to jointly consider key technical, economic, and user-specific factors—such as the share of PV electricity self-consumed, energy exported or imported from the grid, and time-of-use elec-tricity pricing—all of which significantly influence investment viability. To address these gaps, this study introduces a novel method based on a new model to calculate the unit cost of electricity consumption from the user’s perspective (CEC, in €/kWh). The array DC power rating is then optimally sized—assuming ideal orientation and tilt—to minimize CEC. A self-consumption PV system is considered cost-competitive when the annualized minimized CEC is lower than the applicable regulated electricity tariff. Colombia is selected as a case study to demonstrate the novel method due to the limited deployment and analy-sis of self-consumption PV systems in the country. The method is applied across residen-tial, commercial, and industrial sectors in various locations. The resulting annualized minimized CEC values (0.35–8.85 c€/kWh) are consistently below the corresponding regu-lated tariffs, demonstrating the economic viability of properly sized PV systems. The method’s adaptability to international tariff frameworks makes it a valuable tool for global application and a useful resource for policymakers and stakeholders.
publishDate 2026
dc.date.none.fl_str_mv 2026
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.3390/app16052425
https://www.mdpi.com/2076-3417/16/5/2425
https://hdl.handle.net/10953/7598
url https://doi.org/10.3390/app16052425
https://www.mdpi.com/2076-3417/16/5/2425
https://hdl.handle.net/10953/7598
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Applied Sciences
dc.rights.none.fl_str_mv Attribution 3.0 Spain
http://creativecommons.org/licenses/by/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 3.0 Spain
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
instname:Universidad de Jaén
instname_str Universidad de Jaén
reponame_str RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
collection RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
repository.name.fl_str_mv
repository.mail.fl_str_mv
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