TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: The solar cells are wafer-based solar cells selected from crystalline silicon (c-Si) and multi-crystalline silicone (mc-Si) based solar cells. The solar cells are thin film solar cells selected from amorphous silicon (a-Si), microcrystalline silicon (pc-Si), cadmium telluride (CdTe), copper indium selenide (CIS), copper indium/gallium diselenide (CIGS), light absorbing dyes, and organic semiconductor based thin film solar cells.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The oxidizable metal component comprises at least one metal selected from silver, cerium, copper, aluminum, zirconium, titanium, bismuth, cadmium, copper, lead, silver, tin, lead, zinc, and alloys comprising at least one of silver, cerium, copper, aluminum, zirconium, titanium, bismuth, cadmium, copper, lead, silver, tin, lead and zinc (preferably silver or an alloy of silver). The oxidizable metal component is a reflector film comprising silver or an alloy of silver.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The hindered amine is a hindered amine light stabilizer. The hindered amine is a secondary amine or a tertiary amine. The hindered amine is selected from 2,2,6,6-tetramethylpiperadine, 2,2,6,6-tetramethylpiperadinol, 2-(dimethylamino) pyridine, 4-(dimethylamino) pyridine, N-butyl piperidine and N,N-diethyl cyclohexylamine. The UV absorbers are benzotriazole derivatives. The thermal stabilizers comprise octylphenol or butylated hydroxytoluene. The unsaturated heterocyclic compounds are selected from triazole, imidazole, pyrrole, pyridine, purine, pyrazine, adenine, triazine, benzotriazole, benzothiazole, benzoxazole, 2,2'-dipyridyl, 2-mercaptobenzimidazole and thiazole. The chelating agents are selected from ethylenediaminetetraacetic acid, ethylenediamine monoacetic acid, ethylenediamine diacetic acid, ethylenediamine triacetic acid, ethylene diamine, tris(2-aminoethyl)amine and diethylenetriaminepentacetic acid.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The poly(vinyl butyral) encapsulant has a yellowness index of less than or equal to 60 when measured in accordance with ASTM E313-05 after 1000 hours at 85% relative humidity (RH) and at 85 degrees C with bias of 1000 V. The oxidizable metal component is selected from conductive paste, conducting wire, bus bar, conductive coating and reflector film. The poly(vinyl butyral) encapsulant comprises the hindered amine (up to 1.5 wt.%). The poly(vinyl butyral) encapsulant further comprises at least one additive selected from at least one UV absorber (0.01-1 wt.%); at least one thermal stabilizer (0.01-1 wt.%); at least one unsaturated heterocyclic compound (0.01-1 wt.%); and at least one chelating agent (0.01-1 wt.%). Preferred Assembly: The pre-lamination assembly further comprises at least one additional layer selected from second poly(vinyl butyral) sheet that is same as or different from the poly(vinyl butyral) sheet, where the second poly(vinyl butyral) sheet is in contact with the solar cell assembly; protective outer layer that is in contact with the poly(vinyl butyral) sheet; second protective outer layer that is same as or different from the protective outer layer, where the second protective outer layer in contact with the second poly(vinyl butyral) sheet; and substrate or superstrate that is in contact with the solar cell assembly and with the poly(vinyl butyral) sheet. EXAMPLE - No suitable example given.