The challenges and impact of incorporating RES and EVCS into distribution grid systems are investigated. It emphasizes the significance of this integration for modernizing the energy system and achieving environmental objectives. In addition to general performance measures and compatibility concerns, the investigation explores the particular challenges that on-grid power structures suffer. It provides a thorough examination of the characteristics of several renewable energy sources hybrid systems, along with innovations in solar, wind, battery, and biomass technologies. Consequently, due to the growing variety of EVs, the transportation sector is presently shifting away from oil-powered vehicles. The increasing adoption of EVs has led to the development of EVCS. Unplanned EVCS deployments may cause issues with the distribution system, including higher power losses and the worst voltage profile. As a result, both the integration of RES and EVCS must be arranged on the distribution system in the best possible location. This study proposes a conventional approach to integrating RES and EVCS adoption in distribution systems. The appropriate buses are added to the radial distribution system after the three radial distribution system zones are identified using the voltage deviation criterion. The voltage deviation, power loss, and reliability indices comparative results for the IEEE 33 bus system are presented in this chapter.