Design of Solar-Powered Electric Vehicle Charging System

Abstract

This paper investigates the feasibility of charging electric vehicles (EV) with PV panels at workplaces and residences and declares the suitable PV system capacity in Visaldhapatnam. As the penetration of EVs is increasing, need of charging stations with renewable energy to reduce burden on power system and also to mitigate climate change. The work considers charging stations for residential and workplace for its study. The configuration of the charging stations is based on the models proposed by NITI AAYOG, Government of India. Starting with estimation of charging profile of an EV, the work estimates the power requirement of a typical charging station for worlaplace applications (Only solar PV) and for residential (solar PV with energy storage) with a fired tilt and azimuth angle. A suitable solar PV system, with and without energy storage, to meet the above desired power is desigued, by using SAM software. The appropriate PV system is found for EV charging stations (CS) by analysing the technical and economic performance of different capacities of the solar PV system to meet the expected demand. The study results show the selfconsumption, cost of energy (COE), payback period (PBP), and net present value (NPV) based on which the capacity of solar photo voltaic (SPV) system and with or without energy storage is decided and selected depending on its application.