Renewable Energy Shift Essential to Address Global Greenhouse Gas Emissions

Strategic Insights -

Research from Sejong University highlights the pressing need to transition from fossil fuels to renewable energy sources, citing substantial greenhouse gas emissions from current mobility and energy generation sectors. A study conducted in Uljin-gun, South Korea, demonstrates a viable solution by integrating bifacial photovoltaic modules with flywheel energy storage systems to power electric vehicle charging stations. The study's findings suggest that this renewable energy system can generate significant amounts of clean energy while reducing carbon dioxide emissions.

Key Takeaways:

  • The research emphasizes the importance of shifting towards renewable energy to address the issue of global greenhouse gas emissions, with fossil fuels being the primary contributor to emissions in the mobility and energy generation sectors.
  • The study presented a technical and economic analysis of grid-connected bifacial photovoltaic-flywheel fast-charging stations for electric vehicles in Uljin-gun, South Korea, demonstrating the feasibility of this renewable energy system.
  • The bifacial photovoltaic modules showed acceptable performance ratios, ranging from 82.10 % to 95.80 %, and the integration with on-grid electric vehicle charging stations supported by flywheel energy storage systems resulted in a high net present cost of $290,092.
  • The optimal bifacial photovoltaic array can generate 114,491 kWh of energy annually, with an annual surplus energy generation amounting to 58,475 kWh (37.7 %), and the renewable energy fraction reached 72.2 %.
  • The proposed energy system can meet electric vehicle load demand throughout the year, with the flywheel state of charge maintaining an annual average value of 57.56 %, and potential carbon dioxide savings from the system were calculated to be 5,686 kg/yr.

Statistics:

  • The bifacial photovoltaic modules showed performance ratios ranging from 82.10 % to 95.80 %.
  • The proposed energy system can generate 58,475 kWh of surplus energy annually, accounting for 37.7 % of the total energy generated.
  • The renewable energy fraction reached 72.2 % in the proposed energy system.
  • The potential carbon dioxide savings from the system were calculated to be 5,686 kg/yr.

Sources:

  • NewsRx LLC. Reports from Sejong University Describe Recent Advances in Renewable Energy (Performance Analysis of Grid-connected Bifacial Photovoltaic-flywheel System Powered Electrical Vehicle Level 3 Fast Charging Station: a Technical and Economic Study ...). Ecology, Environment & Conservation. September 19, 2025; p 321.
  • Applied Thermal Engineering. Performance Analysis of Grid-connected Bifacial Photovoltaic-flywheel System Powered Electrical Vehicle Level 3 Fast Charging Station: a Technical and Economic Study In South Korea. 2025;275.