A recent study led by Sebastian Zainali from Mälardalen University has shed light on the performance of agrivoltaic systems that utilize bifacial photovoltaic modules, which can capture sunlight from both sides. This research, published in the “AgriVoltaics Conference Proceedings,” offers valuable insights into how these systems can be optimized based on geographical conditions, particularly in Sweden and Italy.
The study evaluated three different agrivoltaic system designs: vertical fixed, single-axis tracker, and dual-axis tracker. The results revealed a significant variation in electricity production between the two countries. In Sweden, the specific production ranged from 1090 to 1440 kWh per kilowatt peak per year, while in Italy, the figures were notably higher, ranging from 1584 to 2112 kWh/kWp/yr. The dual-axis tracking system emerged as the most efficient design in Italy, generating the highest power output, while the vertical fixed system recorded the lowest production in both countries.
Zainali noted, “The vertical fixed design had a higher electricity production during low solar elevation angles, while the single-axis and dual-axis tracking designs had significantly higher power production during mid-day.” This indicates that the effectiveness of agrivoltaic systems can be significantly influenced by the time of day and the angle of sunlight, which varies by location.
For the energy sector, these findings present both challenges and opportunities. In high-latitude countries like Sweden, the study suggests that low-height, fixed agrivoltaic systems without tracking may be more effective, allowing for simpler and potentially less costly installations. Conversely, in sunnier regions such as Italy, investing in elevated systems with tracking technology could maximize energy production, making them a more attractive option for commercial energy producers.
The research emphasizes the importance of tailoring agrivoltaic designs to local conditions and crop types, suggesting that energy companies should consider these factors when planning new installations. As the demand for sustainable energy solutions continues to grow, the insights from Zainali’s study could guide future investments in agrivoltaic systems, enhancing their viability and efficiency.
This research not only contributes to the academic understanding of agrivoltaics but also highlights the commercial potential of these systems in diverse geographical contexts. As industries look to blend agriculture with renewable energy, the findings could help shape the future of energy production in various regions. For more information about the research and ongoing projects, you can visit Mälardalen University.
