Methods and Devices for Shipping Solar Modules
Methods and devices are provided for improved solar module shipping techniques. In one embodiment, the method includes stacking a plurality of glass-based photovoltaic modules in the shipping container, wherein the modules are mounted in a surface supported configuration wherein at least 50% of a top substrate of the modules is a weight bearing surface, transferring weight through cells in the module to a bottom substrate of one of the modules, which transfers weight to a surface of an underlying module.
1 . A method for photovoltaic module shipping comprising:
2 . The method of claim 1 comprising:
providing a shipping pallet;
stacking a plurality of photovoltaic modules in the shipping pallet, wherein the modules are each positioned in the pallet in a core surface weight bearing configuration, wherein at least 50% but not 100% of a transparent layer of each of the modules is a weight bearing surface, transferring weight of overlying modules to at least 50% of the solar cells in the modules and then from the solar cells to a bottom module layer, which transfers weight to any underlying modules;
wherein a central portion of each module in the stack is weight bearing and a full perimeter of each of the modules is not weight bearing;
wherein the modules each have at least one structure extending beyond a plane of the module which prevents stacking in the core surface weight bearing configuration without shifting of the modules along at least one axis.
3 . The method of claim 1 comprising stacking the modules to have weight bearing central portions is achieved without using vertical spacers between modules.
4 . The method of claim 1 wherein modules are positioned without using perimeter spacers between modules.
5 . The method of claim 1 wherein the stacking is sufficient to allow for loads of 1900 kg.
6 . The method of claim 1 wherein the modules are frameless modules.
7 . The method of claim 1 wherein the modules are glass-glass modules.
8 . The method of claim 1 wherein weight transfer from overlying modules to any underlying modules is accomplished without using spacers between adjacent modules of a thickness greater than a height of an electrical connector housing on the modules.
9 . The method of claim 1 wherein the modules each further include at least one electrical connector housing.
10 . The method of claim 9 wherein the at least one electrical connector housing is located at or near an edge surface of the module.
11 . The method of claim 9 wherein the at least one electrical connector housing is located within a selected distance from an edge surface of the module, the selected distance being 10% of the long dimension of the module.
12 . The method of claim 9 wherein each of the modules includes at least two electrical connector housings, each located along a same edge surface of the module.
13 . The method of claim 9 wherein each of the modules includes at least two electrical connector housings, each located along different edge surfaces of the module.
14 . The method of claim 9 further comprising staggering the modules such that the electrical connector housings are not sandwiched between adjacent modules, but that a housing on one module extend along a side surface of an adjacent module, not therebetween.
15 . The method of claim 9 further comprising staggering the modules such that a first module is in a first orientation, a second module is in a second orientation, a third module is in a third orientation, and a fourth module is in a fourth orientation, wherein the modules are oriented to locate electrical connector housings to the side of an adjacent module and not inbetween, wherein each of the orientations are unique from each other.
16 . The method of claim 9 further comprising staggering the modules such that a first module is in a first orientation, a second module is in a second orientation comprising a Y-rotation and X-translation relative to the first orientation, a third module is in a third orientation comprising an X-rotation and Y-translation relative to the second orientation, and a fourth module is in a fourth orientation comprising a Y-rotation and X-translation relative to the third orientation, wherein the modules are oriented to locate electrical connector housings to the side of an adjacent module and not inbetween, wherein each of the orientations are unique from each other.
17 . The method of claim 9 further comprising staggering the modules such that a first module is in a first orientation, a second module is in a second orientation comprising a Y-rotation and X-translation relative to the first orientation, a third module is in a third orientation comprising an X-rotation relative to the second orientation, and a fourth module is in a fourth orientation comprising a Y-rotation and X-translation relative to the third orientation, wherein the modules are oriented to locate electrical connector housings to the side of an adjacent module and not inbetween, wherein each of the orientations are unique from each other.
18 . The method of claim 1 wherein at least 60% of the area of a top substrate of the modules is a weight bearing surface.
19 . The method of claim 1 wherein at least 70% of the area of a top substrate of the modules is a weight bearing surface.
20 . The method of claim 1 wherein at least 80% of the area of a top substrate of the modules is a weight bearing surface.
21 . The method of claim 1 wherein at least 90% of the area of a top substrate of the modules is a weight bearing surface.
22 . A method comprising:
providing a shipping pallet;
stacking a plurality of photovoltaic modules in the shipping pallet, wherein the modules are each positioned in the pallet in a core surface weight bearing configuration, wherein at least 50% but not 100% of a transparent layer of each of the modules is a weight bearing surface, transferring weight of overlying modules to at least 50% of the solar cells in the modules and then from the solar cells to a bottom module layer, which transfers weight to any underlying modules;
staggering the modules such that a first module is in a first orientation, a second module is in a second orientation, a third module is in a third orientation, and a fourth module is in a fourth orientation, wherein the modules are oriented to locate electrical connector housings to the side of an adjacent module and not inbetween, wherein each of the orientations are unique from each other.
23 . The method of claim 22 wherein stacking comprising of repeating the staggering of four modules until the desired number of modules are in the shipping pallet.
24 . The method of claim 22 wherein each of the modules has an electrical connection box on one side of the module, wherein each connection box has a height of between 1× module thickness to 2× module thickness.
25 . The method of claim 22 wherein one orientation differs from an adjacent module orientation only in lateral shift or translation in one axis.
26 . The method of claim 22 wherein one orientation differs from an adjacent module orientation in both a lateral shift in one axis and a rotation about the same or a different axis.