NOVELTY - Reflectors (30B-30D) are arranged between the solar cells (4) mounted on a substrate, in an array. The reflectors are laminated plastic sheet with light reflection coating. The laminated sheet has multiple V-grooves, inclined at angle of 25-35 degrees, with the top cover and base substrate, so that total internal reflection on solar cells is performed.    USE - For high power generation plants (claimed).    ADVANTAGE - The power output of photovoltaic solar cell module is increased, by the internal reflecting reflectors, arranged between the cells. Manufacturing method of solar module is improved and made easy.    DETAILED DESCRIPTION - The plastic sheet is made of polyethylene terephthalate, with aluminum or silver coating. The V-grooves of angle between 110-130 degrees, are formed to a depth of 0.002 inch, in laminated sheet with thickness 0.004-0.01 inch. The grooves are spaced between 0.007 inch of the sheet. The grooves of the reflector arranged between row and column cells, extend in different directions. Same directional grooves are parallel to each other, but angular to the other direction grooves. The solar cell and reflectors are encapsulated in light transmitting polymer material, which is bonded with cover and substrate. The grooves are designed to a geometry such that the light incident on them, suffers a total internal reflection, since the groove inclination angle is greater than the critical angle, and falls back on the solar cell module. Alternately, the reflector grooves between the row and column cells are unidirectional. The top cover of the solar cell has refractive index between 1.3-3.0.    An INDEPENDENT CLAIM is also included for solar cell manufacturing method. A plastic film web is extended and formed with flat front, back surfaces to a thickness of 0.004-0.01 inches. The front surface of the film is embossed with V-shaped parallel grooves having an enclosed angle of 110-130 degrees. The embossed front surface is coated with the reflective film to a thickness of about 1000 Angstrom or less. A selected length of laminated film is cut from the web. The solar cells are arranged in an array on the back sheet and a transparent front cover sheet is laid on the cells. The laminated film strips are arranged between the cells and sealed with cells, by light transmitting film, interposed between the cover sheet and back sheet. Thus a sealed solar module is formed with metal film or dielectric film as reflecting coating.    DESCRIPTION OF DRAWING(S) - The figure shows the conceptual diagram of improved solar cell module.    Solar cells (4)    Reflectors (30B-30D)