IP Library › Granted Patent US 12,231,075
Granted Patent B2
US 12,231,075 · App. 18/494,429 · Granted Feb 18, 2025

Building integrated photovoltaic systems

Inventors: Natasha Hjerrild (Parsippany, NJ); David Kavulak (San Francisco, CA); Richard Perkins (San Jose, CA); Gabriela Bunea (San Jose, CA); William Holt (Parsippany, NJ)
Assignee: GAF Energy LLC
H02S20/23H01L31/049
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Quick Facts
Patent No.
US 12,231,075
App. No.
18/494,429
Granted
Feb 18, 2025
Kind
B2
Abstract

A system includes first, second and third photovoltaic modules on a rood. Each module includes an upper edge, a lower edge and at least one solar cell. Lower edges of the cells of the first and second modules are offset from lower edges of the first and second modules. Upper edge of the cell of the second module is offset from the upper edge of the second module. The upper edge of the cell of the third module is offset from the upper edge of the third module. The first module overlays the second module. The lower edge of the cell of the first module is substantially aligned with the upper edge of the cell of the second module. The second module overlays the third module. The lower edge of the cell of the second module is substantially aligned with the upper edge of the cell of the third module.

Claims (81)

1. A system, comprising:

at least first, second and third photovoltaic modules installed on a sloped roof deck of a structure,

wherein each of the at least first, second and third photovoltaic modules includes

an upper edge and a lower edge opposite the upper edge, and

at least one solar cell

wherein the at least one solar cell includes

an upper edge, a lower edge opposite the upper edge of the at least one solar cell, and

a width extending from the upper edge of the at least one solar cell to the lower edge of the at least one solar cell,

wherein the upper edge of the at least one solar cell of the second photovoltaic module is offset from the upper edge of the second photovoltaic module by a first distance,

wherein the upper edge of the at least one solar cell of the third photovoltaic module is offset from the upper edge of the third photovoltaic module by the first distance,

wherein the lower edge of the at least one solar cell of the first photovoltaic module is offset from the lower edge of the first photovoltaic module by second distance,

wherein the lower edge of the at least one solar cell of the second photovoltaic module is offset from the lower edge of the second photovoltaic module by the second distance;

and

wherein the lower edge of the first photovoltaic module overlays at least a portion of the second photovoltaic module at the upper edge of the second photovoltaic module,

wherein the lower edge of the at least one solar cell of the first photovoltaic module is substantially aligned with the upper edge of a corresponding one of the at least one solar cell of the second photovoltaic module in a vertical direction,

wherein the lower edge of the second photovoltaic module overlays at least a portion of the third photovoltaic module at the upper edge of the third photovoltaic module, and

wherein the lower edge of the at least one solar cell of the second photovoltaic module is substantially aligned with a corresponding one of the upper edge of the at least one solar cell of the third photovoltaic module in the vertical direction.

2. The system of claim 1 , wherein the lower edge of the at least one solar cell of the third photovoltaic module is offset from the lower edge of the third photovoltaic module by the second distance, and wherein the upper edge of the at least one solar cell of the first photovoltaic module is offset from the upper edge of the first photovoltaic module by the first distance.

3. The system of claim 1 , wherein the at least one solar cell includes a plurality of solar cells, wherein the plurality of solar cells is arranged in a single row, wherein each of the at least first, second and third photovoltaic modules includes a fractional inactive area, and wherein the fractional inactive area is calculated as the first distance divided by a sum of the first distance and the width.

4. The system of claim 3 , wherein the first distance is 0.1 mm to 25 mm.

5. The system of claim 4 , wherein the width is 150 mm to 250 mm.

6. The system of claim 5 , wherein the fractional inactive area is 0.05 to 0.1.

7. The system of claim 1 , wherein the second distance is 0.1 mm to 25 mm.

8. The system of claim 1 , wherein the at least one solar cell includes a plurality of solar cells, wherein the plurality of solar cells is arranged in a plurality of rows, wherein the lower edge of each of the plurality of solar cells in a lower most row of the plurality of rows of the first photovoltaic module is substantially aligned with the upper edge of a corresponding one of the plurality of solar cells in an upper most row of the plurality of rows of the second photovoltaic module, and wherein the lower edge of each of the plurality of solar cells in a lower most row of the plurality of rows of the second photovoltaic module is substantially aligned with the upper edge of a corresponding one of the plurality of solar cells in an upper most row of the plurality of rows of the third photovoltaic module.

9. The system of claim 1 , wherein each of the at least first, second and third photovoltaic modules includes an encapsulant encapsulating the at least one solar cell, wherein the encapsulant includes a first end, a second end opposite the first end, a first surface extending from the first end to the second end, and a second surface opposite the first surface and extending from the first end to the second end, wherein the encapsulant is transparent.

10. The system of claim 9 , wherein each of the at least first, second and third photovoltaic modules includes a frontsheet juxtaposed with the first surface of the encapsulant, wherein the frontsheet includes a first end and a second end opposite the first end of the frontsheet, and wherein the frontsheet is transparent.

11. The system of claim 10 , wherein each of the at least first, second and third photovoltaic modules includes a backsheet juxtaposed with the second surface of the encapsulant, wherein at least a portion of the backsheet is transparent.

12. The system of claim 11 , wherein the first section extends from the first edge of the corresponding one of the at least first, second and third photovoltaic modules to a first location intermediate the first edge of the corresponding one of the at least first, second and third photovoltaic modules and the second edge of the corresponding one of the at least first, second and third photovoltaic modules, and wherein the second section extends from the first location to the second edge of the corresponding one of the at least first, second and third photovoltaic modules.

13. The system of claim 12 , wherein the backsheet includes a first surface, a second surface opposite the first surface of the backsheet, a first side extending from the first edge of the corresponding one of the at least first, second and third photovoltaic modules to the second edge the corresponding one of the at least first, second and third photovoltaic modules, and a second side opposite the first side and extending from the first edge of the corresponding one of the at least first, second and third photovoltaic modules to the second edge of the corresponding one of the at least first, second and third photovoltaic modules, wherein the first section extends from the first side to the second side and from the first surface of the backsheet to the second surface of the backsheet.

14. The system of claim 13 , wherein the second section extends from the first side to the second side and from the first surface of the backsheet to the second surface of the backsheet.

15. The system of claim 1 , wherein each of the at least first, second and third photovoltaic modules includes

a backsheet,

wherein the backsheet includes a first section,

wherein the first section includes a beveled portion, and

wherein the beveled portion of the first photovoltaic module overlays at least a portion of the at least one solar cell of the second photovoltaic module, and

wherein the beveled portion of the second photovoltaic module overlays at least a portion of the at least one solar cell of the third photovoltaic module.

16. The system of claim 15 , wherein the beveled portion includes a reflective portion.

17. A method, comprising:

obtaining at least first, second and third photovoltaic modules,

wherein each of the at least first, second and third photovoltaic modules includes

an upper edge and a lower edge opposite the upper edge, and

at least one solar cell,

wherein the at least one solar cell includes an upper edge and a lower edge opposite the upper edge,

wherein the lower edge of the at least one solar cell is offset from the lower edge of a corresponding one of the at least first, second and third photovoltaic modules by a first distance,

wherein the upper edge of the at least one solar cell is offset from the upper edge of the corresponding one of the at least first, second and third photovoltaic modules by a second distance, and

installing the first photovoltaic module on a sloped roof deck of a structure;

installing the second photovoltaic module on the roof deck,

wherein the lower edge of the second photovoltaic module overlays at least a portion of the first photovoltaic module at the upper edge of the first photovoltaic module,

wherein the lower edge of the at least one solar cell of the second photovoltaic module is substantially aligned with the upper edge of the at least one solar cell of the first photovoltaic module in a vertical direction; and

installing the third photovoltaic module on the roof deck,

wherein the lower edge of the third photovoltaic module overlays at least a portion of the second photovoltaic module at the upper edge of the second photovoltaic module,

wherein the lower edge of the at least one solar cell of the third photovoltaic module is substantially aligned with the upper edge of the at least one solar cell of the second photovoltaic module in the first direction.

18. A system, comprising:

at least first, second and third photovoltaic modules installed on a sloped roof deck of a structure,

wherein each of the at least first, second and third photovoltaic modules includes

an upper edge and a lower edge opposite the upper edge, and

at least one solar cell

wherein the at least one solar cell includes

an upper edge, a lower edge opposite the upper edge of the at least one solar cell, and

a width extending from the upper edge of the at least one solar cell to the lower edge of the at least one solar cell,

wherein the upper edge of the at least one solar cell of the second photovoltaic module is offset from the upper edge of the second photovoltaic module by a first distance,

wherein the upper edge of the at least one solar cell of the third photovoltaic module is offset from the upper edge of the third photovoltaic module by the first distance,

wherein the lower edge of the at least one solar cell of the first photovoltaic module is offset from the lower edge of the first photovoltaic module by a second distance,

wherein the lower edge of the at least one solar cell of the second photovoltaic module is offset from the lower edge of the second photovoltaic module by the second distance;

an encapsulant encapsulating the at least one solar cell,

wherein the encapsulant includes a first end, a second end opposite the first end, a first surface extending from the first end to the second end, and a second surface opposite the first surface and extending from the first end to the second end, wherein the encapsulant is transparent;

a frontsheet juxtaposed with the first surface of the encapsulant,

wherein the frontsheet includes a first end and a second end opposite the first end of the frontsheet, and wherein the frontsheet is transparent; and

a backsheet juxtaposed with the second surface of the encapsulant,

wherein the backsheet includes

a first section, and

a second section juxtaposed with the first section,

 wherein the first section is transparent,

 wherein the second section is non-transparent,

wherein the first end of the frontsheet, the first end of the encapsulant, and the first section of the backsheet form a transparent portion,

wherein the transparent portion of the first photovoltaic module overlays at least a portion of the at least one solar cell of the second photovoltaic module, and

wherein the transparent portion of the second photovoltaic module overlays at least a portion of the at least one solar cell of the third photovoltaic module,

wherein the lower edge of the first photovoltaic module overlays at least a portion of the second photovoltaic module at the upper edge of the second photovoltaic module,

wherein the lower edge of the at least one solar cell of the first photovoltaic module is substantially aligned with the upper edge of a corresponding one of the at least one solar cell of the second photovoltaic module in a vertical direction,

wherein the lower edge of the second photovoltaic module overlays at least a portion of the third photovoltaic module at the upper edge of the third photovoltaic module, and

wherein the lower edge of the at least one solar cell of the second photovoltaic module is substantially aligned with a corresponding one of the upper edge of the at least one solar cell of the third photovoltaic module in the vertical direction.

Continuity (2)
Provisional Application 63419972 · Oct 27, 2022
Related Publication 20240146234A1 · May 2, 2024
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