NOVELTY - An array of photovoltaic panels is fabricated by forming support framework having at least first and second framework element having support surface; placing first panel on framework elements so that first and second keying structures of first panel respectively overlay first and second framework elements; placing first keying structure of second panel in overlapping relationship with second keying structure on first panel; and securing first and second panels where electrodes on first and second panels are disposed in electrically conductive contact.    USE - Method of fabricating an array of photovoltaic panels.    ADVANTAGE - The method fabricates photovoltaic panel having structural features that facilitate the mechanical and electrical interconnection of adjacent panels in a solar array thus reducing installation cost.    DETAILED DESCRIPTION - An array of photovoltaic panels is fabricated by:    (A) forming a support framework having at least a first and a second framework element having a support surface;    (B) placing a first panel on the framework elements so that first and second keying structures of the first panel respectively overlay the first and second framework elements;    (C) placing the first keying structure of a second panel in overlapping relationship with the second keying structure on the first panel; and    (D) securing the first and second panels where the electrodes on the first and second panels are disposed in electrically conductive contact.    The panel comprises photovoltaic module (12) comprising photovoltaic cell(s); a first and a second keying structure extending laterally from the module and each having a defined mating surface; and an electrode of a first polarity being mounted on a first keying structure and an electrode of a second polarity being mounted on a second keying structure where both electrodes are electrically connected to the photovoltaic cell in the photovoltaic module. The keying structures are disposed on the panel so that the mating surfaces are arranged in complementary confrontational relationship with respect to each other.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic exploded view of a photovoltaic panel.    Photovoltaic module (12)    Radiation incident surface (12R)    Corner piece (15C)    Finger (15G)    Linear piece (15L)