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 (86, 87), and a plurality of photovoltaic cells between the first and second module terminals (86, 87); 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; wherein the photovoltaic cells are positioned in a parallel orientation to the first and second bus bars (35, 36), 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 (51, 53, 54) 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 (35, 36), 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 (86, 87), and a plurality of photovoltaic cells between the first and second module terminals (86, 87); first and second module terminals (86, 87), and a plurality of photovoltaic cells between the first and second module terminals (86, 87); 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; wherein the photovoltaic cells are positioned in a parallel orientation to the first and second bus bars (35, 36), 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 (51, 53, 54) 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 (35, 36), such that the photovoltaic modules can be selectively electrically connected in series and/or parallel.