Sustainable Energy Solutions for Electric Vehicle Charging Stations

Strategic Insights -

A new research study published in the Sustainable Energy Technologies and Assessments journal has found that regions with strong renewable potential and low-to-moderate grid tariffs can provide cost-effective power solutions for electric vehicle (EV) charging stations. The study, led by researchers from the University of Tehran, aimed to optimize the cost of energy (COE) for EV charging stations using a dispatch strategy that utilizes excess renewable power for green hydrogen production.

Key Takeaways:

  • The research found that regions with strong renewable potential and low-to-moderate grid tariffs can provide cost-effective power solutions for EV charging stations, with a COE ranging from $0.042-$0.061/kWh for mid-day residential and commercial-office consumption patterns.
  • The study highlighted the potential affordability of integrating EV and hydrogen-fueled vehicle stations, with a hydrogen production cost of $3.1-$7.2/kg.
  • The research concluded that the green hydrogen production approach led to an approximately 20% COE increase, reducing excess power from over 30% to less than 5%.
  • The study's authors used a dispatch strategy aimed at minimizing costs and utilizing excess renewable power for green hydrogen production to achieve net-zero power exchange for excess power management.

Statistics:

  • The COE ranges from $0.042-$0.061/kWh for mid-day residential and commercial-office consumption patterns, achieving a renewable contribution of over 60%.
  • The COE ranges from $0.058-$0.067/kWh for highway and public transportation fast chargers, with a renewable contribution exceeding 45%.
  • The green hydrogen production approach led to an approximately 20% COE increase.
  • The hydrogen production cost ranges from $3.1-$7.2/kg.
  • The study highlighted the potential to reduce excess power from over 30% to less than 5% using the green hydrogen approach.

Sources:

  • Sustainable Energy Technologies and Assessments, Techno-economic Assessment of Renewable-based Ev Charging Stations With Green Hydrogen Production for Excess Power Management Under Different Consumption Patterns, 2025; 81.
  • University of Tehran, Department of Energy Engineering, Sustainable Energy Research Group.
  • Alibakhsh Kasaeian, University of Tehran, Coll Interdisciplinary Sci & Technol, Sch Energy Engn & Sustainable Resources, Tehran, Iran.
  • Abdullah M. Maghfuri and Mohammad Amin Vaziri Rad, co-authors of the study.