NOVELTY - Process (P1) for making a solar cell module that comprises a solar cell assembly and a polymeric encapsulant layer, the solar cell assembly comprises a solar cell and a metal component, and the polymeric encapsulant layer is in contact with the metal component; involves: applying at least one additive to the polymeric encapsulant layer or to the metal component.    USE - For making solar cell module (claimed).    ADVANTAGE - The method provides solar cell module that is resistant to discoloration, by applying additive that prevents or reduces discoloration to encapsulant or to metal component. Discoloration of encapsulant in solar cell modules is not desirable, as it decreases transmission of light, and is considered aesthetically unpleasing. Thus, in prior art, solar cell modules have been improved by providing their metal components with nickel-vanadium alloy coating, which is resistant to oxidation. Imperfections in this coating frequently occur and are difficult to identify. The migration of oxidizing agents and metal cations through pinholes and other flaws in nickel-vanadium coating allows discoloration to occur despite this preventive measure. The solar cell modules produced by the method have encapsulant s that resist discoloration when in prolonged contact with oxidizable metal components, by use of additives that prevent or reduce reduction of metal cations and reduce discoloration of polymeric encapsulants in contact with oxidizable metals. The inclusion of these additives in the polymeric encapsulants can also reduce oxidation of metal component or formation of elemental metals from metal cations. Thus, the resulting discoloration of encapsulant is mitigated. The beneficial additives are combined with polymeric encapsulant, typically in bulk extrusion process. In this approach, encapsulant formulation is tailored to physical conformation of solar cell module. As a result, encapsulants are produced as products of custom formulations and syntheses. It is also efficient and economical to manufacture, and uses fewer grades of standard encapsulant materials. The method thus provides inexpensive and flexible method of providing encapsulants that are in contact with metal components in solar cell modules with resistance to discoloration over time.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) a solar cell module produced by the process (P1); and    (2) a pre-press assembly produced by the process (P1).