NOVELTY - Making integrated photovoltaic module (100), comprises: providing first low-iron glass substrate (102); providing second glass substrate (108) substantially parallel to first substrate, where first and second substrates have thickness of 1.5-3.5 mm; providing photovoltaic array between major surfaces of first and second glass substrates; and laminating together first and second substrates with photovoltaic array between them, where photovoltaic module is dimensioned, shaped and structured to weigh according to a predetermined dimensions, shape, and weight in relation to roof of vehicle.    USE - The process is useful for making integrated photovoltaic module which is used for making sunroof on vehicle comprising automobile (all claimed), automotive, recreational, marine, and/or other vehicles e.g. car.    ADVANTAGE - The process provides photovoltaic module: which replaces existing sunroof; that seals potentially hazardous photovoltaic layer from outside environment, thus reducing deterioration of photovoltaic layer; saves cost and time during assembly process of car; that has thickness similar to that of ordinary sunroof, thus retractable and allows opening of sunroof; that provides power source which facilitates, usage of radio, speakers, when not turned and without draining main battery, and keeps backup battery in charged state, thus available in emergency situations; and which has long term durability, good adhesion strength, and optical characteristics.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) making the integrated photovoltaic module for a rooftop a vehicle, comprising providing a first glass substrate having a first thickness, providing a second glass substrate substantially parallel to the first substrate having a second thickness, the second substrate having a higher iron content and lower visible transmission than the first substrate, inserting a solar cell array between the first and second glass substrates, and laminating together the first and second glass substrates with the solar cell array between them;    (2) making a vehicle, comprising providing the integrated photovoltaic module, and building the integrated photovoltaic module into the vehicle; and    (3) the integrated photovoltaic module configured to replace an existing sunroof, comprising a glass substrate, the second glass substrate, and copper indium gallium selenide (CIGS)-based solar cell array disposed between a major surface of the first and second glass substrates, the solar cell array having electrical leads connected to it, where the first and second substrates are laminated together with polyvinyl butyral (PVB), where the PVB sealing the thin film solar cell array between the first and second substrates, the electrical leads extending through the PVB and out of the integrated photovoltaic module, where the integrated photovoltaic module is dimensioned to be structurally similar to the existing sunroof.    DESCRIPTION OF DRAWING(S) - The figure shows cross-sectional view of a photovoltaic module.    Photovoltaic module (100)    First glass substrate (102)    First laminating material (104a)    Second laminating material (104b)    Second glass substrate (108)