NOVELTY - A photovoltaic module comprises photovoltaic cells positioned between a transparent module layer (12) and a backside module layer (20); and at least one electrical housing positioned along an edge of the module to allow electrical connection to the photovoltaic cells by way of a first electrical lead (40) in the housing that exits between the transparent module layer and the backside module layer. The housing is located beneath the transparent module layer and is positioned so as not to contact a front side surface of the transparent module layer.    USE - As photovoltaic/solar module for photovoltaic power installation (claimed), particularly for large-scale electric power generating installations.    ADVANTAGE - The module is without a bypass diode; and provides improved solar module designs that reduce manufacturing costs and redundant parts in each module. The photovoltaic module minimizes fixed cost per module and decrease the incremental cost of having more modules while maintaining substantially equivalent qualities in power conversion and module durability; and include improvements to the backsheet, frame modifications, thickness modifications, and electrical connection modifications.    DETAILED DESCRIPTION - A photovoltaic module comprises photovoltaic cells positioned between a transparent module layer (12) and a backside module layer (20); and at least one electrical housing positioned along an edge of the module to allow electrical connection to the photovoltaic cells by way of a first electrical lead (40) in the housing that exits between the transparent module layer and the backside module layer. The housing is located beneath the transparent module layer and is positioned so as not to contact a front side surface of the transparent module layer. The module is a frameless module. The module further comprises a pottant layer (14 or 18) having thickness of less than or equal to 100 (preferably less than or equal to 50) mu . The photovoltaic cells each have an absorber layer. The backside module layer, transparent module layer, and the cells are coupled together without a frame extending around a perimeter of the module layers. The module comprises a glass-glass module. The module further comprises a second electrical housing positioned along an edge of the module to allow electrical connection to the photovoltaic cells by way of a second electrical lead (42) in the housing. The first or second electrical lead comprises of a flat aluminum wire/ribbon. The first and second housing each forms an interior space formed to accommodate encapsulant material injected into the space to form the moisture barrier (45); and each have a surface that engages the transparent module layer and a second surface that engages the backside module layer. The first and second housing are each sized to receive a flat aluminum-based wire entering the connector and couple the flat aluminum-based wire to a round copper-based wire exiting the connector. The module further comprises a moisture barrier extending along the perimeter of the module to prevent moisture entry into the module; a moisture barrier of at least one butyl tape or butyl tape loaded with desiccant; an edge seal to act as a moisture barrier; and a desiccant loaded edge seal to act as a moisture barrier. The module is designed to be coupled to clips to couple the module to support structures; and coupled to four clips attached to edges of the module to couple the module to support rails. The transparent module layer comprises solar glass. The backside module layer comprises non-solar glass. The photovoltaic cells comprise thin-film photovoltaic cells, non-silicon solar cells, and amorphous silicon-base solar cells. INDEPENDENT CLAIMS are included for the following:    (1) an edge housing for use with a solar module comprising a housing forming an opening for receiving electrical lead from the module and for electrical connector cable; and module interface surface on the housing formed to mount the housing along an edge of the module. The housing forms a cavity for receiving encapsulant to create a waterproof seal with the module and the electrical lead, or edge for a waterproof tape, sheet or extruded seal; and    (2) method for mounting edge housings over electrical leads involving providing frameless rigid photovoltaic modules; and mounting edge housings over electrical leads extending outward from the edges of the modules, where all electrical leads on one module exits the module without passing through the same connector and without passing through a central junction box.    DESCRIPTION OF DRAWING(S) - The figure shows a cross-sectional view of a module.    Transparent upper layer (12)    Pottant layer (14 or 18)    Backsheet material layer (backside module layer) (20)    Electrical lead wires/ribbons (40 and 42)    Moisture barrier (45)