Comparison of the annual power balance of photovoltaic modules

Abstract

This article presents the results of a research study focusing on the effect of tilt angle changes on the power balance of photovoltaic (PV) systems. The objective of this study was to determine tilt-angle-induced differences in the power balance of two different types of photovoltaic modules: bifacial and monofacial. A comparison of the power balance results, obtained for the PV modules installed on the roof a building with tilt angles of 25° and 90°, was made. Ultimately, the simulation of power changes was performed for the modules installed on the roof with different black and white surfaces. The measurement data were collected using the solar invertors FRONIUS IG and the pyranometer CMP 11. The results obtained indicate that the PV system integrated into the building's façade had a better power balance than the PV system installed on the building's roof in the period from October to January. The power of the bifacial PV modules considered was found to be greater than that of the monofacial PV modules considered. The energy production of bifacial modules proved greatly dependent on the roof surface reflection coefficient.

Current prospects of building-integrated solar PV systems and the application of bifacial PVs

“…In comparison to the benchmark, a significant decrease in the building's overall energy use of up to 92% is seen throughout the winter (Assoa et al, 2021). The tilt angle induces variations in the power equilibrium of two unlike types of PV modules, bifacial and monofacial, which were discussed by Bilčík et al (2020). To test the effectiveness of an integrated bifacial solar PV system and cool roof technology to enhance solar energy production and decrease building energy consumption, Ahmad et al (2021) presented the design and performance analysis of a bifacial solar PV system for an energyefficient home with and without a tracking system.…”

Çift Yüzlü Fotovoltaik Panellerin Farklı Zemin Koşullarında Performansının İncelenmesi

“…It has become inevitable for countries to seek alternatives to meet their energy needs, follow technological developments and monitor the energy sector's development. As a result of the environmental and economic effects of fossil fuels such as oil, coal, and natural gas, the energy diversity topic has focused on renewable energy sources (Allouhi et al, 2019;Çiftçi et al, 2020;Bilčík et al, 2020).…”