SOLAR BATTERY MODULE AND SOLAR BATTERY ARRAY

PROBLEM TO BE SOLVED: To increase the power generation output per unit area of a solar battery module by casting direct light on the surfaces of solar battery cells while casting scattered light on the rear faces of them. SOLUTION: Direct solar light 7 incident on the surface of a solar battery module is directly cast on the surfaces of two-sided photo detective cells 2. At the same time, direct solar light 8 incident in a space between each two adjacent solar battery cells is reflected on a reflection sheet 5. A part of the reflected light is incident on the rear faces of the solar battery cells 2 and another part of the reflected light is reflected on the inside surface of a flat glass 1 on the surface and then is incident on the surfaces of the solar battery cells 2. Moreover, scattered light 9 from the rear face side of the solar battery module is incident on the rear faces of the solar battery cells 2 through openings 6 of the reflection sheet 5 which is so located as to face the rear faces of the solar battery cells 2. Thereby, the power generation output per unit area of the solar battery module can be increased.