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A roofing system includes battens and hangers for installing slate roofing shingles on a roof. Electrical conductors and other electronics are incorporated into the battens and the battens are connected together to form an electrical transmission grid beneath the shingles. Solar panels are installed

A roofing system includes battens and hangers for installing slate roofing shingles on a roof. Electrical conductors and other electronics are incorporated into the battens and the battens are connected together to form an electrical transmission grid beneath the shingles. Solar panels are installed in place of slate shingles in some locations on the roof and are configured to match or complement the surrounding slate shingles. Each solar panel includes a connector that connects the solar panel to the electrical transmission grid. The grid thus collects the electrical energy generated by all of the solar panels and delivers it for storage or use in a home. Microinverters may be coupled to smaller groups of the solar panels for converting their DC voltage to AC voltage and the outputs of the microinverters connected to a remote location for use or storage.

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1. A roofing system comprising: a roof decka plurality of elongated battens arranged on the roof deck in spaced generally parallel relationship relative to each other;a first uninterrupted electrical conductor incorporated into and extending along the length of selected ones of the elongated battens

1. A roofing system comprising: a roof decka plurality of elongated battens arranged on the roof deck in spaced generally parallel relationship relative to each other;a first uninterrupted electrical conductor incorporated into and extending along the length of selected ones of the elongated battens;a second uninterrupted electrical conductor incorporated into and extending along the length of the selected ones of the elongated battens, the second electrical conductor being electrically insulated from the first electrical conductor;shingle hangers attached to each of the elongated battens and arranged in spaced relationship therealong;a plurality of roofing shingles arranged in courses on a roof deck, the roofing shingles being removably held in place on the roof deck by the shingle hangers;at least one solar panel installed on the roof deck in place of a roofing shingle, the solar panel being configured to match or complement the surrounding roofing shingles the solar panel having a pair of electrical conductors electrically insulated from each other and carrying positive and negative voltage respectively that is produced by the solar panel when the solar panel is exposed to sunlight;the pair of electrical conductors of the solar panel terminating in a connector, the connector being removably attached to an adjacent batten and being configured to establish an electrical connection between one electrical conductor of the solar panel and the first electrical conductor of the batten and between the other electrical conductor of the solar panel and the second electrical conductor of the batten; anda wiring harness on the roof deck, the wiring harness having at least two electrically insulated electrical conductors and a plurality of electrical junctions configured to attach to respective ones of the battens and to couple the two electrical connectors of the wiring harness to the first and second electrical connectors of the selected battens to form an electrical transmission grid, the wiring harness carrying electrical energy produced by the solar panel to a remote location for use. 2. The roofing system of claim 1 and wherein the roofing shingles are slate-style shingles. 3. The roofing system of claim 2 and wherein the slate-style shingles are natural slate shingles. 4. The roofing system of claim 1 and further comprising at least one microinverter associated with the solar panel for converting a DC voltage of the solar panel to AC voltage. 5. A prewired hanger system for supporting slate-style shingles on a roof deck, the hanger system being configured to receive and support slate-style shingles in courses on the roof deck and to receive photovoltaic panels in place of at least some of the slate-style shingles, the hanger system comprising: a plurality of elongated battens configured to be arranged on the roof deck in spaced generally parallel relationship relative to each other;a first electrical conductor incorporated into and extending along the length of selected ones of the elongated battensa second electrical conductor incorporated into and extending along the length of the selected ones of the elongated battens, the second electrical conductor being electrically insulated from the first electrical conductor;shingle hangers configured to be attached to each of the elongated battens in spaced relationships therealong, each shingle hanger having a hooked end for receiving an edge of a shingle to support the shingle on a roof to which the prewired hanger system is mounted;a wiring harness having at least two electrically insulated conductors and a plurality of electrical junctions configured to attach to respective ones of the battens and to couple the two electrical conductors of the wiring harness to the first and second electrical conductors of the selected battens to form an electrical transmission grid;at least one solar panel having a pair of electrical conductors electrically insulated from each other and carrying positive and negative voltage respectively that is produced by the solar panel when the solar panel is exposed to sunlight; anda connector terminating the pair of electrical conductors of the solar panel, the connector being removably attachable to an adjacent batten and being configured to establish an electrical connection between one electrical conductor of the solar panel and the first electrical conductor of the batten and between the other electrical conductor of the solar panel and the second electrical conductor of the batten. 6. The prewired hanger system of claim 5 and further comprising a microinverter configured to be coupled to a the electrical connectors terminating the pair of electrical conductors of the solar panel for converting DC voltage from selected the solar panel to AC voltage.