{"id":88596,"date":"2025-09-11T06:53:37","date_gmt":"2025-09-11T06:53:37","guid":{"rendered":"https:\/\/solarhouse.bg\/7-12-more-energy-from-the-same-land-the-future-of-agrivoltaics-is-two-faced\/"},"modified":"2025-10-27T13:39:42","modified_gmt":"2025-10-27T13:39:42","slug":"7-12-more-energy-from-the-same-land-the-future-of-agrivoltaics-is-two-faced","status":"publish","type":"post","link":"https:\/\/solarhouse.bg\/en\/7-12-more-energy-from-the-same-land-the-future-of-agrivoltaics-is-two-faced\/","title":{"rendered":"Bifacial solar panels: 7\u201312% more energy from the same land"},"content":{"rendered":"\r\n

Bifacial solar panels are increasingly proving to be a better solution than classic single-sided ones. According to a study by the Technical University of Sofia, a performance analysis shows that they provide 7\u201312% higher energy yield, with the reflective surface underneath them (white geotextile, aluminum foil, etc.) playing a key role. This makes them an ideal choice for small and medium-sized businesses, as well as households looking for a faster return on investment and energy independence. <\/p>\r\n

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Comparison of the performance of single-sided and double-sided solar panels<\/h2>\r\n

According to a study* by a team from the Renewable Energy Sources Laboratory at the Faculty of Electrical Engineering of the Technical University of Sofia<\/a><\/u>, led by Prof. Zahari Zarkov, bifacial panels provide 7\u201312% more energy than single-sided ones under real weather conditions. This means that farmers can achieve higher energy yield from the same area without losing arable land. <\/p>\r\n

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How was the experiment conducted?<\/h2>\r\n

The research was carried out on an experimental platform at the Technical University – Sofia<\/strong>, built to approximate the conditions in which real solar systems operate. 8 solar panels were installed within the test system – 6 single-sided and 2 double-sided, which allows a direct comparison between the two technologies. The installation at a height of 1 meter was not chosen by chance – this recreates the conditions typical for agrovoltaic projects (above crops and greenhouses), as well as for industrial applications in small and medium-sized businesses. <\/p>\r\n

The bifacial panels were donated to the Renewable Energy Laboratory by Solar House for the purposes of the research. In this way, Solar House actively supports the development of science and the training of future engineers, assisting in the implementation of innovative solutions in renewable energy. <\/p>\r\n

The Faculty of Electrical Engineering of the Technical University – Sofia educates students in bachelor’s programs in electrical engineering and power engineering, and the faculty also offers training in the Master’s program in Renewable Energy Sources<\/strong>, where students can learn in detail about such photovoltaic systems.<\/p>\r\n

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What does the performance analysis of the two types of panels show?<\/h2>\r\n

Comparison between single-sided and bifacial photovoltaic panels<\/h3>\r\n

The analysis clearly shows that bifacial solar panels outperform traditional single-sided panels, providing between 7% and 12% more energy production. This advantage is essential for farmers and business owners because it means more energy from the same installed area, lower electricity costs and a faster return on investment. <\/p>\r\n

Influence of the reflective surface<\/h3>\r\n

The study highlighted that the choice of surface underneath the panels has a direct impact on their performance. The best results were reported with light and reflective materials: <\/p>\r\n