In a world grappling with escalating energy demands and environmental concerns, a novel study led by Shanza Neda Hussain from the University of Exeter’s Faculty of Environment, Science and Economy offers a promising avenue for sustainable energy generation. Published in the journal *Hydrogen* (formerly known as International Journal of Hydrogen Energy), the research delves into the techno-economic evaluation of floating photovoltaic (FPV) systems integrated with green hydrogen production, tailored to different Köppen climate zones.
The study, which simulates a 10 MW FPV system across various climates, reveals that temperate and dry zones hold significant potential for electricity generation. Using PVsyst simulation and HOMER Pro for technical assessments, and evaluating economic viability through metrics like return on investment and net present value, the research underscores the promise of FPV systems. “The payback period is notably low, with the shortest being just 5.7 years,” Hussain explains, highlighting the system’s economic viability and environmental benefits, including reduced water evaporation.
The integration of FPV with hydrogen generation opens new avenues for fueling fuel cell electric vehicles (FCEVs). The study estimates that the highest hydrogen production could reach 292,817 kg/year, refueling over 100 cars daily. This translates to a levelized cost of hydrogen (LCOH) of GBP 2.84/kg over 20 years. Even in dry climates, where soiling losses are high, the potential remains substantial, with up to 18,829,587 kWh/year of electricity and 292,817 kg/year of hydrogen production.
However, the study also cautions that high inflation can significantly impact returns, reducing them to as low as 13.8%. Hussain suggests integrating FPV with hydropower plants to enhance power generation, reinforcing the system’s potential to contribute to sustainable energy goals and align with the UN’s Sustainable Development Goals (SDGs) 7, 9, 13, and 15.
This research not only sheds light on the technical and economic feasibility of FPV systems across different climates but also paves the way for innovative energy solutions. As the energy sector seeks sustainable and efficient alternatives, the findings offer valuable insights for stakeholders, policymakers, and investors. The study’s emphasis on the environmental and economic benefits of FPV systems underscores their potential to shape the future of renewable energy, driving us closer to a sustainable energy future.