<p>Bifacial PV (bPV) panels are gaining traction as they utilize solar irradiance from the front surface and ground reflected irradiance on the rear side of the panel, enhancing power generation. This study experimentally examines the albedo effect, a key factor influencing power output and efficiency in bPV panels, under hot and arid climatic conditions. The experiments assessed a bPV panel under two ground conditions (dry soil and a white surface) by measuring surface temperatures, solar irradiance, and power output. The albedo of the dry soil surface was determined to range from 0.19 to 0.33, with an average value of 0.26. For the white-ground surface, the albedo was higher than that of the dry soil, varying between 0.24 and 0.42, with an average of 0.32. The data obtained from the experiments were compared with the results of a monofacial PV (mPV) panel. The measurements show that the highest power output was achieved on the white-ground, which exhibits a higher albedo. The daily average electrical efficiency was calculated to be 14.53% for the mPV panel, 18.85% for the bPV panel on dry soil, and 20.47% for the bPV panel on the white- ground surface. Compared with the mPV panel, the bPV panel produced 25.25% more energy on dry soil and 29.12% more on the white-ground. Additionally, the bPV panel’s daily average electrical efficiency on the white surface was 40.88% higher than that of the mPV panel and 8.60% higher than that on the soil surface. Measurements indicate that the bPV panel exhibited a lower surface temperature than the mPV panel. Under low solar irradiance conditions, the high-albedo white surface proved more effective in supporting power generation. These experimental findings are expected to be beneficial for engineers and investors in practical applications.</p> Graphical Abstract <p></p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Comparative Experimental Analysis of Monofacial and Bifacial PV Panels Under Dry Soil and White Ground Albedo Conditions

  • Hüsamettin Bulut,
  • Mahmut Umut Akagündüz,
  • Nergiz Ulker

摘要

Bifacial PV (bPV) panels are gaining traction as they utilize solar irradiance from the front surface and ground reflected irradiance on the rear side of the panel, enhancing power generation. This study experimentally examines the albedo effect, a key factor influencing power output and efficiency in bPV panels, under hot and arid climatic conditions. The experiments assessed a bPV panel under two ground conditions (dry soil and a white surface) by measuring surface temperatures, solar irradiance, and power output. The albedo of the dry soil surface was determined to range from 0.19 to 0.33, with an average value of 0.26. For the white-ground surface, the albedo was higher than that of the dry soil, varying between 0.24 and 0.42, with an average of 0.32. The data obtained from the experiments were compared with the results of a monofacial PV (mPV) panel. The measurements show that the highest power output was achieved on the white-ground, which exhibits a higher albedo. The daily average electrical efficiency was calculated to be 14.53% for the mPV panel, 18.85% for the bPV panel on dry soil, and 20.47% for the bPV panel on the white- ground surface. Compared with the mPV panel, the bPV panel produced 25.25% more energy on dry soil and 29.12% more on the white-ground. Additionally, the bPV panel’s daily average electrical efficiency on the white surface was 40.88% higher than that of the mPV panel and 8.60% higher than that on the soil surface. Measurements indicate that the bPV panel exhibited a lower surface temperature than the mPV panel. Under low solar irradiance conditions, the high-albedo white surface proved more effective in supporting power generation. These experimental findings are expected to be beneficial for engineers and investors in practical applications.

Graphical Abstract