| CPC H01L 31/0725 (2013.01) [H01L 31/0508 (2013.01); H01L 31/0516 (2013.01); H01L 31/074 (2013.01); Y02E 10/56 (2013.01)] | 15 Claims |
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1. A solar panel comprising a silicon based submodule provided with an arrangement of a plurality of silicon based solar cells, a front transparent plate and a backsheet;
the backsheet arranged with at least a first conductive pattern;
the plurality of silicon based solar cells each being provided with electrical contacts on a rear surface with each rear surface arranged on the backsheet, such that each silicon based solar cell of the silicon based submodule is electrically connected to the first conductive pattern;
the front transparent plate being arranged above the front surfaces of the plurality of silicon based solar cells,
wherein a thin film photovoltaic submodule is arranged between the front transparent plate and the silicon based submodule, the thin film photovoltaic submodule comprises a plurality of thin film solar cells and is arranged with two thin film photovoltaic submodule contact terminals in a layout such that the thin film photovoltaic submodule contact terminals electrically connect to a second conductive pattern on the backsheet which second conductive pattern does not coincide with a location of the first conductive pattern on the backsheet, and
the backsheet is arranged for four-terminal wiring layout with the first conductive pattern for providing electrical connections to the plurality of silicon based solar cells and the second conductive pattern for providing electrical connections to the plurality of thin film solar cells, and
wherein the plurality of thin film solar cells is in series connection in an array, the plurality of thin film solar cells comprising a first group of thin film solar cells electrically connected in series in a first direction and an at least second group of thin film solar cells electrically connected in series in the first direction; the first group being in an electrical parallel connection with the second group, between the two thin film photovoltaic submodule contact terminals, one end of the electrical parallel connection being connected to one of the two thin film photovoltaic submodule contact terminals, the other end of the electrical parallel connection connected to the other of the two thin film photovoltaic submodule contact terminal,
wherein a dimension of each group of thin film solar cells in the first direction corresponds with a dimension of at least one silicon based solar cell in the first direction, and the first group of serially interconnected thin film solar cells covers the at least one respective silicon based solar cell, the second group covers at least one other silicon based solar cell adjoining in the first direction,
a group terminal of the first and second groups of thin film solar cells to the thin film photovoltaic submodule contact terminals is located outside the area of the at least one silicon based solar cell covered by the respective group, and is at a location in between the at least one silicon based solar cell and the at least one other adjoining silicon based solar cell.
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