積雪地域における太陽光発電システムの適応に関する研究

概要

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In order to optimize electricity generation capacity and determine the optimal attitude for photovoltaic systems installed in snowy areas, an onsite test module was installed and snow accumulation and electricity generation were measured. Snow accumulation on the module was only observed at installation angles of 45°and 60°. When installed at an angle of 90°, electricity generation decreased by approximately 20% during the snowfall season, increasing by a few percentage points during the summer at all three angles. Annual electricity generation only varied slightly between installation angles of 45°or 60°and 90°. Consequently, while electricity generation decreased slightly at an installation angle of 90°during the peak months of June and July, improvements in electricity generation were observed at this angle during the snowfall season when electricity generation is usually at its lowest. Based on these findings, installation angles near 90°were found to be optimal for photovoltaic systems in snowy areas, as these angles minimize the likelihood of decreased electricity generation potential associated with snow accumu lation.
北海道工業大学の論文
2007-03-26