Abstract: This method for detecting a poor module-mounting-state in a concentrator photovoltaic apparatus includes: photographing a surface of an array by an imaging device; obtaining an image in which a virtual image, magnified through a condenser lens, of a light receiving portion including a cell and a vicinity thereof is formed, and a collection of pixels of the virtual image forms a composite virtual image of an entirety of the light receiving portion, the composite virtual image being projected over a plurality of modules; and detecting a poor module-mounting-state based on a form of the composite virtual image.

Abstract: A concentrator photovoltaic module includes: a concentrating portion configured by arranging a plurality of Fresnel lenses that concentrate sunlight; a plurality of power generating elements arranged at positions corresponding respectively to the plurality of Fresnel lenses; a plurality of ball lenses corresponding respectively to the plurality of power generating elements and guide the sunlight concentrated by the plurality of Fresnel lenses to the plurality of power generating elements; and a housing that contains the plurality of ball lenses and the plurality of power generating elements. The housing includes a resin frame body, and a metal bottom plate that is fixed to the frame body, and on the inner surface of which the plurality of ball lenses and the plurality of power generating elements are arranged. The groove portion for reducing thermal expansion of the inner surface side of the bottom plate is on the inner surface of the bottom plate.

Abstract: This method for detecting a poor module-mounting-state in a concentrator photovoltaic apparatus includes: photographing a surface of an array by an imaging device; obtaining an image in which a virtual image, magnified through a condenser lens, of a light receiving portion including a cell and a vicinity thereof is formed, and a collection of pixels of the virtual image forms a composite virtual image of an entirety of the light receiving portion, the composite virtual image being projected over a plurality of modules; and detecting a poor module-mounting-state based on a form of the composite virtual image.

Abstract: A concentrator photovoltaic module includes: a concentrating portion configured by arranging a plurality of Fresnel lenses that concentrate sunlight; a plurality of power generating elements arranged at positions corresponding respectively to the plurality of Fresnel lenses; a plurality of ball lenses corresponding respectively to the plurality of power generating elements and guide the sunlight concentrated by the plurality of Fresnel lenses to the plurality of power generating elements; and a housing that contains the plurality of ball lenses and the plurality of power generating elements. The housing includes a resin frame body, and a metal bottom plate that is fixed to the frame body, and on the inner surface of which the plurality of ball lenses and the plurality of power generating elements are arranged. The groove portion for reducing thermal expansion of the inner surface side of the bottom plate is on the inner surface of the bottom plate.

Abstract: L-shaped positive electrode bus bar 11 and negative electrode bus bar 12 are provided along a vertical side 1b and a horizontal side 1c of the solar battery module 1, positive electrode output terminals 13a and 13b, and negative electrode output terminals 14a and 14b are led out from the long horizontal side 1c, and a positive electrode box 15, a negative electrode box 16, and the like are provided to the long horizontal side 1c. In addition, all solar battery cells 3 of first and second rows R1 and L2 are connected in series by using only one connection bus bar 7. Accordingly, even when the positive electrode box 15, the negative electrode box 16, and the like are provided to the long horizontal side 1c of the solar battery module 1, the number of bus bars is small and the number of connection processes such as soldering is also small.

Abstract: A concentrator photovoltaic module includes: a concentrating portion configured by arranging multiple Fresnel lenses that concentrate sunlight; multiple power generating elements arranged at positions corresponding respectively to the Fresnel lenses; multiple ball lenses corresponding respectively to the power generating elements and guide the sunlight concentrated by the Fresnel lenses to the power generating elements; and a housing that contains the ball lenses and the power generating elements. The housing includes a resin frame body, and a metal bottom plate that is fixed to the frame body, and on an inner surface of which the ball lenses and the power generating elements are arranged. Multiple columnar heat-dissipating members, extending along an outer surface of the bottom plate and dissipating the heat of the bottom plate outward, are attached to the outside surface of the bottom plate.

Abstract: L-shaped positive electrode bus bar 11 and negative electrode bus bar 12 are provided along a vertical side 1b and a horizontal side 1c of the solar battery module 1, positive electrode output terminals 13a and 13b, and negative electrode output terminals 14a and 14b are led out from the long horizontal side 1c, and a positive electrode box 15, a negative electrode box 16, and the like are provided to the long horizontal side 1c. In addition, all solar battery cells 3 of first and second rows R1 and L2 are connected in series by using only one connection bus bar 7. Accordingly, even when the positive electrode box 15, the negative electrode box 16, and the like are provided to the long horizontal side 1c of the solar battery module 1, the number of bus bars is small and the number of connection processes such as soldering is also small.

Abstract: Plant growth is promoted by a simple method. A plant (10) is irradiated with a positive ion and a negative ion.

Abstract: L-shaped positive electrode bus bar 11 and negative electrode bus bar 12 are provided along a vertical side 1b and a horizontal side 1c of the solar battery module 1, positive electrode output terminals 13a and 13b, and negative electrode output terminals 14a and 14b are led out from the long horizontal side 1c, and a positive electrode box 15, a negative electrode box 16, and the like are provided to the long horizontal side 1c. In addition, all solar battery cells 3 of first and second rows R1 and L2 are connected in series by using only one connection bus bar 7. Accordingly, even when the positive electrode box 15, the negative electrode box 16, and the like are provided to the long horizontal side 1c of the solar battery module 1, the number of bus bars is small and the number of connection processes such as soldering is also small.

Abstract: L-shaped positive electrode bus bar 11 and negative electrode bus bar 12 are provided along a vertical side 1b and a horizontal side 1c of the solar battery module 1, positive electrode output terminals 13a and 13b, and negative electrode output terminals 14a and 14b are led out from the long horizontal side 1c, and a positive electrode box 15, a negative electrode box 16, and the like are provided to the long horizontal side 1c. In addition, all solar battery cells 3 of first and second rows R1 and L2 are connected in series by using only one connection bus bar 7. Accordingly, even when the positive electrode box 15, the negative electrode box 16, and the like are provided to the long horizontal side 1c of the solar battery module 1, the number of bus bars is small and the number of connection processes such as soldering is also small.

Abstract: A rotating blade having a blade edge that has a sloped surface to become gradually narrower in a blade thickness direction outward along a radial direction is inclined about an axis along a thickness direction of the substrate toward a substrate at a cutting angle, and an excess portion of a module is cut off by relatively moving at least one of the rotating blade and the module in a cutting direction along an end face of the substrate while the rotating blade is being rotated in one direction.