TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The sealing sheet (12) further contains 1-20 pts. wt. coloring agent (D) chosen from organic pigment, dye, and inorganic fillers, preferably inorganic filler chosen from natural mica, synthetic mica, titanium oxide, aluminum oxide, calcium carbonate, talc, clay, magnesium carbonate, kaolinite, and diatomaceous earth, with respect to 100 pts. wt. ethylene-polar monomer copolymer (b1).    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The ethylene-polar monomer copolymer (b1) is ethylene-unsaturated carboxylic copolymer chosen from ethylene-unsaturated carboxylic anhydride copolymer, ethylene-unsaturated carboxylic ester copolymer, ethylene-unsaturated carboxylic ester-unsaturated carboxylic copolymer, ethylene-unsaturated glycidyl ester copolymer, ethylene-unsaturated-glycidyl ether copolymer, ethylene-unsaturated glycidyl ester-unsaturated-carboxylic ester copolymer, ethylene-unsaturated glycidyl ether-unsaturated-carboxylic ester copolymer, and ethylene-vinyl ester copolymer, preferably ethylene-vinyl acetate copolymer. The vinyl acetate content in the ethylene-vinyl acetate copolymer is 15-47 wt.%. The sealing sheet (11) further contains 0.05-2 pts. wt, preferably 0.1-5 pts. wt. epoxy group-containing silane coupling agent (a2), and 0.05-0.3 pts. wt. acid acceptor (b3) chosen from metal oxide, metal hydroxide, metal oxycarbide, and composite metal hydroxide, with respect to 100 pts. wt. ethylene-( alpha )-olefin copolymer (a1). The silane coupling agents (a2 and b2) in the sealing sheets (11 and 12) have group chosen from vinyl group, methacryl group and acryl group. The sealing sheet (12) is preferably arranged between back-surface side protection component and the solar cell element. Between the light-receiving surface side protection component and the solar cell element, the sealing sheets (11 and 12) are laminated in arbitrary order. Preferred Properties: The ethylene-polar monomer copolymer (b1) has melt flow rate of 0.1-50 g/10 minutes measured based on ASTM D1238, at 190 degrees C and under load of 2.16 kg. In the ethylene-( alpha )-olefin copolymer, the content of the structural unit derived from ethylene is 80-90 mol%, and the content of the structural unit derived from 3-20C ( alpha )-olefin is 10-20 mol%. The ethylene-( alpha )-olefin copolymer has melt flow rate of 0.1-50 g/10 minutes measured based on ASTM D1238, at 190 degrees C and under load of 2.16 kg, density of 0.865-0.884 g/cm3 measured according to ASTM D1505, and shore A hardness measured based on ASTM D2240, of 60-85. The sealing sheet (12) has total light transmittance of 10% or less in wavelength of 430-800 nm.