Measurements and analysis of bi-facial solar photovoltaic panels in outdoor environment of Espoo.
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School of Engineering |
Master's thesis
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Date
2024-09-24
Department
Major/Subject
Energy in Buildings and Built Environment
Mcode
Degree programme
Master's Programme in Advanced Energy Solutions
Language
en
Pages
72
Series
Abstract
The world faces a significant issue with the overuse of fossil fuels, which, while eco-nomically beneficial, cause long-term environmental damage. To address this issue, scientists advocate for Renewable Energy, notably Solar Energy, which is the most cost-effective renewable source. Bi-Facial Solar PV technology, utilizing both sides of solar panels, offers enhanced energy capture. However, measuring their efficiency consistently remains a challenge. This study proposes a method to assess the performance of panel in various conditions, specifically in Espoo, Finland and examines the impact of panel orientation and environmental factors. The study done in June 2024 revealed that on sunny days, the Azimuth Tracked setup was most effective in the morning, with the Fully Tracked system matching its performance around noon. The Azimuth Tracked setup again excelled in the afternoon, while the Vertical Tilt configuration consistently underperformed, likely due to local geographical and seasonal influences. On cloudy days, the Fully Tracked setup led in the morning, with the Azimuth Tracked catching up by noon. The Vertical Tilt setup remained the least efficient. Ambient temperature showed no significant effect on solar PV performance during summer months in Espoo. Surface temperature impacts were noted, with slight performance gains up to 45°C, but decreases were observed beyond this range up to 50°C. The study done back in June 2023 also highlights that using aluminium foil albedo on rooftops enhances panel performance, while covering the back reduces energy output by 20%. Despite their potential, Bi-Facial solar panels require further research, especially in challenging climates like Finland, to fully realize their capabilities in clean energy production.Description
Supervisor
Ferrantelli, AndreaThesis advisor
Järvinen, MikaKeywords
bi-facial solar PV, Finland, front side, rear side, albedo, MPP, ambient temperature, panel orientation