TECHNOLOGY FOCUS - POLYMERS - Preferred Process: The sheet is formed by an extrusion process, and has at least one roughened surfaces. The laminating step is conducted by subjecting the assembly to heat and optionally vacuum or pressure. The extrusion process is a multilayer extrusion process, where the extruded sheet comprises at least one layer comprising the blend composition. The layer comprising the blend composition is an inner layer having a thickness of 10-30 mils (0.25-0.76 mm), or the layer comprising the blend composition is a surface layer having a thickness of 1-5 mils (0.025-0.12 mm). The extruded sheet has at least one rough surfaces. Preferred Components: The first olefin is n-butyl acrylate, the second olefin is acrylic acid and the third olefin is glycidyl methacrylate. The encapsulant layer is directly laminated to the solar cell assembly, where the solar cell assembly has a front sun-facing side and a back non-sun-facing side. The solar cell module comprises a front encapsulant layer that is laminated to the front sun-facing side of the solar cell assembly and a back encapsulant layer that is laminated to the back non-sun-facing side of the solar cell assembly, where one of the front and back encapsulant layers is the encapsulant layer, and the other of the front and back encapsulant layers is crosslinked or uncross-linked and consists essentially of at least one polymeric materials comprising copolymers comprising an alpha -olefin and an alpha , beta -ethylenically unsaturated carboxylic acid, ionomers of copolymers comprising an a-olefin and an alpha , beta -ethylenically unsaturated carboxylic acid, copolymers comprising ethylene and a moiety comprising an epoxy group, ethylene/vinyl acetate copolymers, poly(vinyl acetals), polyurethanes, polyvinyl chlorides, polyethylenes, polyolefin block copolymer elastomers, copolymers of an alpha -olefin and an alpha , beta -ethylenically unsaturated carboxylic acid, silicone elastomers, and/or epoxy resins. The solar cell module comprises two encapsulant layers, where the two encapsulant layers are the front encapsulant layer and the back encapsulant layer, two encapsulant layers consist essentially of the blend composition or the product of cross-linking the blend composition, and blend composition of the front encapsulant layer and the blend composition of the back encapsulant layer are the same or different. The solar cell module further comprises: an incident layer (11), where the incident layer is an outermost surface layer of the module and is positioned on the front sun-facing side of the solar cell assembly, and the incident layer is made of a material comprising glass sheets, polymeric sheets comprising a polymer including polycarbonates, acrylics, polyacrylates, cyclic polyolefins, polystyrenes, polyamides, polyesters and/or fluoropolymers, and polymeric films comprises a polymer including polyesters, polycarbonate, polyolefins, norbornene polymers, polystyrene, styrene-acrylate copolymers, acrylonitrile-styrene copolymers, polysulfones, nylons, polyurethanes, acrylics, cellulose acetates, cellophane, poly(vinyl chlorides), and/or fluoropolymers; and a backing layer, where the backing layer is an outermost surface layer of the module and is positioned on the back non-sun-facing side of the solar cell assembly, and is made of a material comprising glass sheets, polymeric sheets, polymeric films, metal sheets, and ceramic plates. The solar cells are: wafer-based solar cells comprising crystalline silicon and multi-crystalline silicone based solar cells and the module consists essentially of, in order of position, an incident layer, the front encapsulant layer (12), the solar cell assembly (13), the back encapsulant layer (14), and a backing layer; and thin film solar cells comprising amorphous silicon, microcrystalline silicon, cadmium telluride, copper indium selenide, copper indium/gallium diselenide, light absorbing dyes or organic semiconductor based solar cells, where the solar cell module consists essentially of, in order of position, an incident layer, a front encapsulant layer that is the encapsulant layer comprising the blend composition or the product of cross-linking the blend composition, and the solar cell assembly or a backing layer, where the solar cell assembly further comprises a substrate upon which the thin film solar cells are deposited and the substrate is positioned such that the substrate is an outermost surface of the module and is positioned on the back non-sun-facing side of the solar cell assembly. Preferred Definitions:    R1, R3 and R4 = H or CH3;    R2 = butyl;    M1 = (-R5); and    R5 = moiety containing glycidyl.    EXAMPLE - Typical blend composition comprised of: sodium ionomer (of ethylene/ methacrylic acid dipolymer and neutralized sodium cation) (10 wt.%); and ethylene copolymer (of ethylene, n-butyl acrylate and glycidyl methacrylate) (90 wt.%).