Hybrid electric vehicles (HEVs) are commercialized and plug-in hybrid electric vehicles (PHEVs) are becoming more popular. PHEVs are charged by plugging into electric outlets or on-board electricity generation. These vehicles can drive at full power in electric-only mode over a limited range. As such, PHEVs offer valuable fuel flexibility. The charging of PHEVs has an impact on the distribution grid because these vehicles consume a large amount of electrical energy and this demand of electrical

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... power can lead to extra large and undesirable peaks in the electrical consumption. The improvements in power quality that are possible by using coordinated charging are emphasized in. It also indicates that not coordinating the charging of PHEVs decreases the efficiency of the distribution grid operation. Several automakers are preparing for the next generation of passenger transportation, Plug-in Hybrid Electric Vehicles (PHEVs). Using data from the Tehran Regional Electric Company (T.R.E.C), this study sought to understand how different charging scenarios for PHEVs could impact electricity demand in Tehran.