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Effect of spectral irradiance distribution on the outdoor performance of amorphous Si//thin-film crystalline Si stacked photovoltaic modules |
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| Authors: | Takashi Minemoto Masanori Toda Shingo Nagae Masahiro Gotoh Akihiko Nakajima Kenji Yamamoto Hideyuki Takakura Yoshihiro Hamakawa |
| Affiliation: | aCollege of Science and Engineering, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan;bKaneka Corporation, 2-1-1 Hieitsuji, Otsu, Shiga 520-0104, Japan |
| Abstract: | Effects of spectral irradiance distributions on the outdoor performance of amorphous Si//thin-film crystalline Si stacked photovoltaic (PV) modules installed at Shiga-prefecture in Japan have been investigated. Outdoor solar spectrum measurements revealed that more than 95% of annual total spectra were blue-rich compared to AM1.5 standard solar spectrum. The outdoor performance of the modules had a higher spectral dependence than that of polycrystalline Si modules. Also, the peak of the histogram of annual spectral indexes well corresponded to the peak of the outdoor performance. The results indicate that the actual spectral irradiance distribution is important in designing stacked PV modules. |
| Keywords: | Solar spectrum Spectral irradiance distribution Amorphous Si//thin-film crystalline Si PV module |
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