TECHNOLOGY FOCUS - MECHANICAL ENGINEERING - Preferred Panel: In the solar panel, the first and second pairs of connection terminals are connected in series to the pair of panel terminals. The first and second pairs of connection terminals are connected in parallel to the pair of panel terminals. The solar panel further comprises a power point tracker converter circuit for selectively connecting the first and second pairs of connection terminals to the pair of panel terminals. The first set of cells comprises a set of thin film hydrogenated amorphous silicon cells; and where the second set of cells comprises at least one of a chalcogenides cell, a copper indium telluride (CuInTe2) cell, a copper indium diselenide (CuInSe2) cell, a copper gallium telluride (CuGaTe2) cell, a copper gallium diselenide (CuGaSe2) cell, and a cadmium telluride (CdTe) cell. The cell size, a number of cells, and a coupling arrangement of the first and second set of cells equalize at least one of current generation and voltage generation by the first and second multi-cell thin-film photovoltaic modules based upon an electrical connection between the modules and the pair of panel terminals. The solar panel as well comprises a layer of transparent resin between the first and second multi-cell thin-film photovoltaic modules. The first multi-cell thin-film photovoltaic module has an amorphous silicon photovoltaic diode structure having an intrinsic semiconductor layer thickness between about 100 and 500 nm; and where the second multi-cell thin-film photovoltaic module has a chalcogenide based photovoltaic diode structure having an intrinsic semiconductor layer thickness between about 0.5 and 4 mu m. The chalcogenide comprises at least one of CuInTe2, CuInSe2, CuGaTe2, CuGaSe2, and CdTe. The chalcogenide has a band-gap between about 0.9 and 1.3 eV. The semiconductor layer of amorphous silicon has a band-gap between about 1.5 and 2 eV. Alternatively, the solar panel comprises: a first photovoltaic module comprising a transparent support, a first pair of connection terminals to be carried by the transparent support, and a first set of cells to be carried by the transparent support and being connected to the first pair of connection terminals, the first set of cells configured to absorb at least a first portion of the solar spectrum; a second photovoltaic module stacked with the first photovoltaic module comprising a support, a second pair of connection terminals to be carried by the support, and a second set of cells to be carried by the support and being connected to the second pair of connection terminals, the second set of cells configured to absorb at least a second portion of the solar spectrum different than the at least one first portion of the solar spectrum. The first and second pairs of connection terminals are either connected in series or parallel. The solar panel further comprises a power point tracker converter circuit for selectively connecting the first and second pairs of connection terminals. The first set of cells comprises a set of thin film hydrogenated amorphous silicon cells; and where the second set of cells comprises at least one of a chalcogenides cell, a CuInTe2 cell, a CuInSe2 cell, a CuGaTe2 cell, a CuGaSe2 cell, and a CdTe cell. In a second alternative case, the solar panel comprises: a first multi-cell thin-film photovoltaic module of a first fabrication type comprising a transparent support forming a front surface of the panel, a first pair of connection terminals on the transparent support, and a first set of cells of a certain area, being on the transparent support, and being connected in series to the first pair of connection terminals; a second multi-cell thin-film photovoltaic module of a second fabrication type comprising an opaque support forming a rear surface of the panel, a second pair of connection terminals on the opaque support, and a second set of cells of a certain area, being on the opaque support, and being connected in series to the second pair of connection terminals; a pair of panel terminals for connecting the solar panel to an external circuit; and a power point tracker converter circuit for selectively connecting the first and second pairs of connection terminals in either parallel or in series to the pair of panel terminals. The solar panel further comprises a layer of transparent resin between the first and second multi-cell thin-film photovoltaic modules. Preferred Method: Making the solar panel further comprises connecting the first and second pairs of connection terminals in series to the pair of panel terminals; connecting the first and second pairs of connection terminals in parallel to the pair of panel terminals; providing a power point tracker converter circuit for selectively connecting the first and second pairs of connection terminals to the pair of panel terminals; forming the first set of cells using a set of thin film hydrogenated amorphous silicon cells; and forming the second set of cells using at least one of a chalcogenides cell, a CuInTe2 cell, a CuInSe2 cell, a CuGaTe2 cell, a CuGaSe2 cell, and a CdTe cell; and molding a layer of transparent resin between the first and second multi-cell thin-film photovoltaic modules. Alternatively, making the solar panel comprises: providing a first photovoltaic module comprising a transparent support, a first pair of connection terminals to be carried by the transparent support, and a first set of cells to be carried by the transparent support and being connected to the first pair of connection terminals, the first set of cells configured to absorb at least a first portion of the solar spectrum; and stacking a second photovoltaic module with the first photovoltaic module, the second photovoltaic module comprising a support, a second pair of connection terminals to be carried by the support, and a second set of cells to be carried by the support and being connected to the second pair of connection terminals, the second set of cells configured to absorb at least a second portion of the solar spectrum different than the at least one first portion of the solar spectrum.