Solar-Powered EV Charging Stations Gain Popularity Worldwide

Strategic Insights -

Solar-powered electric vehicle (EV) charging stations are becoming increasingly popular globally, driven by the growing demand for environmentally sustainable transportation options. According to a recent study published in the Journal of Energy Storage, the commercial production of solar-powered battery charging stations is on the rise, with a significant reduction in the costs of photovoltaic (PV) systems. This shift is expected to have a profound impact on the energy storage industry, enabling a wider adoption of EVs and promoting a more sustainable energy future.

Key Takeaways:

  • The research presented a solar-powered EV charging station equipped with a 100 V Direct Current (DC) bus, incorporating a PV system and a hybrid energy storage system (HESS) that integrates batteries and supercapacitors.
  • The proposed system achieved DC bus voltage regulation within 30-45 ms, reducing undershoot and overshoot by 74.3% and 78.9%, respectively, compared to conventional methods.
  • The voltage ripple was minimized to 0.9%, representing an 80.0% improvement.
  • Two two-wheeler EVs were charged using multi-rate constant current charging, which optimized SoC levels and enhanced the State of Health (SoH) of EV batteries.
  • The power management system was meticulously assessed under various operating conditions, reflecting different levels of PV power availability and load demands.
  • The model was simulated using MATLAB/SIMULINK and validated through OPALRT OP-4510 real-time simulator, with results confirming the system's efficiency, stability, and reliability.
  • The research was conducted by Pravat Kumar Rout, Siksha O Anusandhan, Dept. of Electronic and Electrical Engineering, Bhubaneswar 751030, Odisha, India, and co-authored by Sarthak Mohanty, Shubhranshu Mohan Parida, and Buddhadeva Sahoo.

Statistics:

  • 74.3% reduction in undershoot compared to conventional methods.
  • 78.9% reduction in overshoot compared to conventional methods.
  • 80.0% improvement in voltage ripple reduction.
  • 30-45 ms achievement of DC bus voltage regulation.
  • 0.9% minimum voltage ripple achieved.
  • 80.0% improvement in State of Health (SoH) of EV batteries.

Sources:

  • Coordinated Power Sharing In a Low Voltage Direct Current Microgrid With Photovoltaic and Hybrid Energy Storage System for Two-wheeler Electric Vehicle Charging. Journal of Energy Storage, 2025;128. Journal of Energy Storage can be contacted at: Elsevier, Radarweg 29, 1043 Nx Amsterdam, Netherlands.
  • NewsRx. Reports Outline Energy Storage Findings from Department of Electronic and Electrical Engineering (Coordinated Power Sharing In a Low Voltage Direct Current Microgrid With Photovoltaic and Hybrid Energy Storage System for Two-wheeler Electric ...). Energy Weekly News. September 5, 2025; p 579.