NOVELTY - Method of providing flexible and scalable photovoltaic arrays, comprises: forming many metal strips on a flexible material so as to define the first layer; forming many electrical traces and many thermal vias on a metal foil so as to define the second layer; bonding the first layer to the second layer by way of bonding the many thermal vias to respective ones of the metal strips using a thermally conductive electrically non-conductive adhesive; removing the metal foil; and electrically bonding at least some of the many electrical traces to respective ones of the metal strips.    USE - The method is useful for providing flexible and scalable photovoltaic arrays (claimed), which are useful for charging storage batteries and energizing electronic devices.    ADVANTAGE - The method: provides effective mass production of arrays; and reduces overall cost per watt of generated power.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) an apparatus comprising: a flexible thermally conductive electrically non-conductive material defining a substrate (100); many metallic strips supported by the substrate; many electrical traces disposed over the strips, at least some of the electrical traces being electrically bonded to respective ones of the metallic strips, where the metallic strips defining electrical bus-lines (106A-106H); and many thermal vias disposed over and bonded to respective ones of the metallic strips, where the metallic strips defining heat spreader bus-lines; and    (2) array of photovoltaic cells, comprising a substrate of flexible and thermally conductive and electrically non-conductive material, many electrically conductive bus-lines disposed in parallel arrangement on the substrate, many thermally conductive heat spreader bus-lines disposed in parallel arrangement on the substrate, many thermal vias bonded to respective ones of the heat spreader bus-lines and many electrical traces electrically coupled to respective ones of the electrically conductive bus-lines, at least some of the electrical traces disposed over and electrically isolated from respective ones of the electrically conductive bus-lines.    DESCRIPTION OF DRAWING(S) - The figure shows a plan view of a flexible substrate layer.    Substrate (100)    Sheet material (102)    Metal strips (104)    Bus-lines (106A-106H)    Metal areas (108A-108B)