NOVELTY - A photoelectric conversion element module consists of a photoelectric conversion portion, a light-receiving surface (3A) side protection component for protecting the light-receiving surface side of photoelectric conversion portion, a back surface (3B) side protection component for protecting the back surface side of photoelectric conversion portion, and a thermal layer (6). The thermal layer is capable of reducing transmittance in light-receiving surface side of photoelectric conversion portion or surface of light-receiving surface side protection component.    USE - Photoelectric conversion element module is used for photoelectric conversion system (claimed) e.g. solar cell used in generation of electric power for common residences.    ADVANTAGE - The photoelectric conversion element module has suppresses occurrence of electric shock accident by water-discharge in case of fire, etc.    DETAILED DESCRIPTION - A photoelectric conversion element module consists of a photoelectric conversion portion, a light-receiving surface side protection component for protecting the light-receiving surface side of photoelectric conversion portion, a back surface side protection component for protecting the back surface side of photoelectric conversion portion, and a thermal layer. The thermal layer is capable of reducing transmittance in the light-receiving surface side of photoelectric conversion portion or surface of the light-receiving surface side protection component, and suppressing the amount of light incident with respect to photoelectric conversion portion by heating. An INDEPENDENT CLAIM is included for photoelectric conversion system, which consists of the photoelectric conversion element module, and a safety mechanism for blocking circuit with respect to change of light transmittance in the thermal layer.    DESCRIPTION OF DRAWING(S) - The drawing shows the cross-sectional view of the structure of photoelectric conversion element module.    Light-receiving surface side sealing material (2a)    Photovoltaic cell (3)    Light-receiving surface (3A)    Back surface (3B)    Thermal layer (6)