TL;DR
A new foam-based floating solar PV system with air bubblers has been tested for cold climates. Early results indicate increased energy yield and ice prevention, with potential for broader application.
Researchers at Western University have developed a foam-based floating solar photovoltaic (PV) system equipped with air bubblers, designed to operate efficiently in cold climates. The system has demonstrated promising energy gains and ice prevention capabilities during recent experiments, marking a potential breakthrough for floating solar deployment in colder regions.
The foam-backed floating PV system attaches solar modules to polyethylene foam slabs, providing natural insulation and maintaining the panels about 1 centimeter above water. An air bubbler system, which uses minimal energy, was integrated to prevent ice formation on the water surface and around the panels during cold conditions. Experimental setups showed that the foam-based system produced higher annual energy yields compared to traditional floating PV models, especially in cold environments.
According to Joshua M. Pearce, a co-author of the study, the foam-based FPV not only enhances energy production but also reduces water evaporation, contributing to water conservation efforts. The system’s economic viability was also highlighted, suggesting it could be a practical solution for cold-region floating solar projects. The research was conducted by a team led by an anonymous researcher, with findings published in the journal Applied Energy.
Implications for Cold-Climate Floating Solar Deployment
This innovation could expand floating solar applications into colder regions where ice formation and low temperatures have historically limited system performance. By improving efficiency and preventing ice buildup with low energy input, foam-backed FPV systems with air bubblers may open new markets for sustainable solar energy, especially in areas with harsh winters. The economic viability also suggests potential for commercial adoption, which could accelerate the global growth of floating solar capacity.
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Advances in Floating Solar Technology and Cold Climate Challenges
Floating solar PV has grown rapidly over the past decade, with global installations reaching over 10 GW by 2025. Most systems are optimized for warm climates, where water cooling benefits improve efficiency. However, cold climates pose unique challenges, including ice formation and low temperatures that reduce system performance. Prior innovations have focused on structural stability and water management, but effective solutions for ice prevention remain limited. The recent development by Western University researchers addresses these gaps with foam-backed modules and air bubblers, building on ongoing efforts to adapt floating solar for diverse environments.
“The foam-based FPV generated more energy annually compared to other PV models, emphasizing the importance of accurate temperature modeling for cold-climate systems.”
— an anonymous researcher
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Uncertainties Around Large-Scale Application and Market Adoption
It remains unclear whether foam-based FPV systems with air bubblers can be scaled effectively for commercial deployment. Long-term durability, maintenance costs, and performance in diverse cold climates are still under investigation. Further field testing across different water bodies and climates is needed to validate the system’s practicality and economic viability at larger scales.
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Next Steps for Validation and Commercial Viability
Researchers plan to conduct larger-scale pilot projects to assess long-term performance, durability, and cost-effectiveness. They also aim to explore integration with existing floating solar infrastructure and evaluate potential for widespread adoption in cold regions. Regulatory and market analyses will be essential to determine the pathway toward commercialization.
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Key Questions
How does the foam backing improve solar panel performance in cold climates?
The foam backing provides insulation, helping to maintain higher panel temperatures and improve energy yield during cold weather.
What role do air bubblers play in ice prevention?
Air bubblers generate bubbles that reduce ice formation on the water surface and around the panels, maintaining system operation during winter.
Is this foam-based floating PV system cost-effective compared to traditional systems?
Initial studies suggest it is economically viable, especially considering the increased energy output and ice prevention benefits, but full cost assessments are ongoing.
Can this technology be applied in all cold regions?
Further testing is needed across diverse climates to confirm performance and durability, but the concept shows promise for a range of cold environments.
When will this technology be available for commercial projects?
Large-scale pilot projects are planned, but commercial availability depends on further validation, regulatory approvals, and market acceptance, which could take several years.
Source: CleanTechnica
