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Green technology

Enhancing Photovoltaic Panel Efficiency through Water-Cooling

Strategic Insights

— 1 min read

Researchers at Lebanese International University have highlighted the pressing need for more effective solar technology in the global transition away from fossil fuels and toward renewable energy sources. The team, led by Hassan Raad, has theoretically evaluated the energy, financial, and environmental advantages of different water-cooling techniques to improve the sustainability and operating efficiency of photovoltaic (PV) panels. The study found that jet water impingement cooling outperformed other technologies, resulting in significant energy gains, cost savings, and CO2 emission reductions.

Key Takeaways:

  • The research emphasized the importance of efficient cooling in improving PV panel performance and developing sustainable solar energy solutions.
  • The study utilized a mathematical parametric model to simulate the effects of various water-cooling methods on PV panel performance.
  • The key performance metrics computed and compared for PV applications included energy production, cost savings, and carbon footprint reduction.
  • The study found that jet water impingement cooling (JWPV) resulted in an annual energy gain of 1354.10R kWh per panel, cost savings of 582.26R USD, and CO2 emission reductions of 785.37R kg.
  • Evaporative cooling (EPV) produced the least amount of improvement, with energy gains of 1061.53R kWh, savings of 456.46R USD, and CO2 reductions of 615.68R kg.
  • The results highlighted the critical role of efficient cooling in enhancing PV panel efficiency and promoting sustainable solar energy solutions.
  • The research was conducted by Hassan Raad, Samer Ali, Jalal Faraj, Cathy Castelain, Khaled Chahine, and Mahmoud Khaled, under the Energy and Thermo-fluid Group at Lebanese International University.

Statistics:

  • Annual energy gain of 1354.10R kWh per panel using JWPV
  • Cost savings of 582.26R USD per panel using JWPV
  • CO2 emission reductions of 785.37R kg per panel using JWPV
  • Energy gains of 1061.53R kWh per panel using EPV
  • Cost savings of 456.46R USD per panel using EPV
  • CO2 reductions of 615.68R kg per panel using EPV

Sources:

  • Enhancing photovoltaic panel efficiency through Water-Cooling: A parametric comparative evaluation of energetic, economic, and environmental benefits. Unconventional Resources, 2025,7():100208.
  • NewsRx. Study Data from Lebanese International University Update Knowledge of Climate Change (Enhancing photovoltaic panel efficiency through Water-Cooling: A parametric comparative evaluation of energetic, economic, and environmental benefits). Global Warming Focus. July 21, 2025; p 242.

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