TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Component: The photovoltaic panel comprises a first transparent substrate (18), a first conductive layer, a first doped silicon layer, a second doped silicon layer, and a second conductive layer. The photovoltaic panel comprises sections that are transparent having a transmittance of greater than or equal to1% (preferably greater than or equal to5%). The photovoltaic panel comprises solar cells (20) including crystalline silicon solar cells, amorphous silicon solar cells, polycrystalline copper indium diselenide solar cells, cadmium-zinc sulfide (CdZnS)/copper-indium-gallium-selenide (CuInGaSe2) solar cells, ZnCdS/cadmium-tellurium (CdTe) solar cells, or gallium indium phosphide on gallium arsenide solar cells. Preferred Method: Reacting is performed in the presence of a catalyst component comprising organolead (II), organobismuth (III), or organotin (IV) catalysts; a pigment component, and an antioxidant/UV absorber component. The substrates are treated by primers comprising organosilanes, polyurethanes, polyesters, pigments, and/or solvents.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Material: The conductive layers comprise indium tin oxide, doped tin oxide, and/or doped zinc oxide. The doped silicon layers comprise crystalline silicon, amorphous silicon, or polycrystalline silicon. The first doped silicon layer comprises an impurity including a p+ type impurity, a p type impurity, or an n type impurity.    TECHNOLOGY FOCUS - POLYMERS - Preferred Material: The plastic frame section comprises polyurethane. Preferred Component: The isocyanate component comprises an isophorone diisocyanate trimer/monomer mixture having a cyanate content of 24.5-34 wt.%. The isocyanate-reactive component comprises polyetherpolyol having terminal OH groups, an average nominal functionality of 2-4, and an average equivalent weight of 800-4000; a chain extender component(s) having as functional groups only aliphatic or alicyclic OH groups; and an amine-initiator component(s).