Printed solar film comprising a carrier substrate , said carrier substrate carrying printed structures, the printed structures comprising: a plurality of photovoltaic modules , each module including first and second module terminals , and a plurality of photovoltaic cells between the first and second module terminals ; a first bus bar extending along one side of the photovoltaic modules ; a second bus bar extending along an opposite side of the photovoltaic modules ; and a plurality of inter-module rails , each inter-module rail being associated with a photovoltaic module (31-33); wherein the photovoltaic cells are positioned in a parallel orientation to the first and second bus bars , and each photovoltaic cell is electrically connected in series with an adjacent photovoltaic cell , wherein each inter-module rail includes a plurality of selectively configurable junctions comprising one or more linkable gaps such that the photovoltaic modules are initially disconnected from one another in the printed structure; and wherein the printed structures define a plurality of selectively configurable junctions at predetermined locations on the printed structure external to the photovoltaic modules , one or more of the junctions being configurable during manufacture and prior to application of a protective coating to the printed structures so as to enable a photovoltaic module to be selectively connected to an adjacent photovoltaic module by a conductive paste, a conductive ink or a conductive tape over the respective linkable gap of one or more inter-module rails , and enable a module terminal to selectively connect with or disconnect from one of the first and second bus bars , such that the photovoltaic modules can be selectively electrically connected in series and/or parallel. a plurality of photovoltaic modules , each module including first and second module terminals , and a plurality of photovoltaic cells between the first and second module terminals ; first and second module terminals , and a plurality of photovoltaic cells between the first and second module terminals ; a first bus bar extending along one side of the photovoltaic modules ; a second bus bar extending along an opposite side of the photovoltaic modules ; and a plurality of inter-module rails , each inter-module rail being associated with a photovoltaic module (31-33); wherein the photovoltaic cells are positioned in a parallel orientation to the first and second bus bars , and each photovoltaic cell is electrically connected in series with an adjacent photovoltaic cell , wherein each inter-module rail includes a plurality of selectively configurable junctions comprising one or more linkable gaps such that the photovoltaic modules are initially disconnected from one another in the printed structure; and wherein the printed structures define a plurality of selectively configurable junctions at predetermined locations on the printed structure external to the photovoltaic modules , one or more of the junctions being configurable during manufacture and prior to application of a protective coating to the printed structures so as to enable a photovoltaic module to be selectively connected to an adjacent photovoltaic module by a conductive paste, a conductive ink or a conductive tape over the respective linkable gap of one or more inter-module rails , and enable a module terminal to selectively connect with or disconnect from one of the first and second bus bars , such that the photovoltaic modules can be selectively electrically connected in series and/or parallel. <EOS>