(WO9737388-A1)      The photovoltaic system uses plate-shaped photovoltaic modules (24,26,28,30) which overlap one another in the direction from the roof ridge to the gutter. Each module has a width which corresponds to a multiple of the roof tile width and a length which is greater than the longest roof tile length.    The photovoltaic modules are applied to the upper side of overlapping carrier plates, with that nearest the gutter supporting the overlapping edge of the carrier plate which lies nearer the ridge above the surface of the photovoltaic module.    ADVANTAGE -   Simple fitting and replacement of photovoltaic modules without special tool.    (EP891638-A1)      The photovoltaic system uses plate-shaped photovoltaic modules (24,26,28,30) which overlap one another in the direction from the roof ridge to the gutter. Each module has a width which corresponds to a multiple of the roof tile width and a length which is greater than the longest roof tile length.    The photovoltaic modules are applied to the upper side of overlapping carrier plates, with that nearest the gutter supporting the overlapping edge of the carrier plate which lies nearer the ridge above the surface of the photovoltaic module.    ADVANTAGE -   Simple fitting and replacement of photovoltaic modules without special tool.    (CN1214802-A)      The photovoltaic system uses plate-shaped photovoltaic modules (24,26,28,30) which overlap one another in the direction from the roof ridge to the gutter. Each module has a width which corresponds to a multiple of the roof tile width and a length which is greater than the longest roof tile length.    The photovoltaic modules are applied to the upper side of overlapping carrier plates, with that nearest the gutter supporting the overlapping edge of the carrier plate which lies nearer the ridge above the surface of the photovoltaic module.    ADVANTAGE -   Simple fitting and replacement of photovoltaic modules without special tool.    (JP11508340-W)      The photovoltaic system uses plate-shaped photovoltaic modules (24,26,28,30) which overlap one another in the direction from the roof ridge to the gutter. Each module has a width which corresponds to a multiple of the roof tile width and a length which is greater than the longest roof tile length.    The photovoltaic modules are applied to the upper side of overlapping carrier plates, with that nearest the gutter supporting the overlapping edge of the carrier plate which lies nearer the ridge above the surface of the photovoltaic module.    ADVANTAGE -   Simple fitting and replacement of photovoltaic modules without special tool.    (JP3058455-B2)      The photovoltaic system uses plate-shaped photovoltaic modules (24,26,28,30) which overlap one another in the direction from the roof ridge to the gutter. Each module has a width which corresponds to a multiple of the roof tile width and a length which is greater than the longest roof tile length.    The photovoltaic modules are applied to the upper side of overlapping carrier plates, with that nearest the gutter supporting the overlapping edge of the carrier plate which lies nearer the ridge above the surface of the photovoltaic module.    ADVANTAGE -   Simple fitting and replacement of photovoltaic modules without special tool.    (US6119415-A)      The photovoltaic system uses plate-shaped photovoltaic modules (24,26,28,30) which overlap one another in the direction from the roof ridge to the gutter. Each module has a width which corresponds to a multiple of the roof tile width and a length which is greater than the longest roof tile length.    The photovoltaic modules are applied to the upper side of overlapping carrier plates, with that nearest the gutter supporting the overlapping edge of the carrier plate which lies nearer the ridge above the surface of the photovoltaic module.    ADVANTAGE -   Simple fitting and replacement of photovoltaic modules without special tool.