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Analysis of charging capacity for electric vehicles in soviet-era apartment districts from the perspective of substation power availability

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dc.contributor.authorLumi, Janek
dc.contributor.authorTooming, Allan
dc.contributor.departmentEstonian University of Life Sciences. Institute on Forestry and Engineering. Chair of Energy Application Engineeringeng
dc.date.accessioned2025-08-13T09:13:05Z
dc.date.available2025-08-13T09:13:05Z
dc.date.issued2025
dc.descriptionReceived: April 22nd, 2025 ; Accepted: June 13th, 2025 ; Published: July 10th, 2025 ; Correspondence: janek.lumi@emu.eeeng
dc.description.abstractThis article analyses the potential for electric vehicle (EV) home charging in a Sovietera apartment district powered by the Lammi substation in Tartu, Estonia. Using one year of hourly electricity consumption data from 360 apartments, the study evaluates three load management scenarios to determine how many EVs can be supported without overloading the existing transformer infrastructure. The analysis is based on a worst-case winter week, reflecting realistic household consumption patterns and typical EV charging behaviour, which does not require daily charging. Three load control strategies are compared: (1) dynamic load management limited by weekly peak load; (2) fixed nighttime charging within a capped substation load; and (3) full dynamic charging for all apartments. The results show that up to 96, 218, and 360 EVs could be supported under these respective scenarios. The findings highlight how the choice of charging strategy significantly affects infrastructure demands and demonstrate that coordinated load management can enable broader EV integration without immediate large-scale investment. The study contributes practical insight for energy planners and housing associations seeking to align smart charging systems with the technical limits of existing substations.eng
dc.identifier.citationLumi, J., & Tooming, A. (2025). Analysis of charging capacity for electric vehicles in soviet-era apartment districts from the perspective of substation power availability. https://doi.org/10.15159/AR.25.065en
dc.identifier.issn2228-4907
dc.identifier.publicationAgronomy Research, 2025, vol. 23, no. 2, pp. 1128–1139eng
dc.identifier.urihttp://hdl.handle.net/10492/10097
dc.identifier.urihttps://doi.org/10.15159/ar.25.065
dc.publisherEstonian University of Life Scienceseng
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)eng
dc.rightsinfo:eu-repo/semantics/openAccesseng
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectchargingeng
dc.subjectelectric vehicleseng
dc.subjectload managementeng
dc.subjectresidential chargingeng
dc.subjectsubstation capacityeng
dc.subjectarticleseng
dc.titleAnalysis of charging capacity for electric vehicles in soviet-era apartment districts from the perspective of substation power availabilityeng
dc.typeArticleeng

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2025, Vol. 23, No. 2