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1. US20180167024 - Building integrated photovoltaic system for tile roofs

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

Claims

1. A building-integrated solar roofing system, having photovoltaic (PV) roof tiles, comprising:
a production section of the solar roofing system, formed from one or more subset circuits of PV tiles, wherein each subset circuit comprises:
a first PV roof tile having two solar cell modules of which one solar cell module is biased toward a left side of the first PV roof tile and the other solar cell module is biased toward the right side;
a second PV roof tile having a single solar cell module biased toward a left side of the second PV roof tile; and
a third PV roof tile having a single solar cell module biased toward a right side of the third PV roof tile,
a non-production section of the solar roofing system, comprising a first PV mimic tile, a second PV mimic tile, a third PV mimic tiles, wherein each first PV mimic tile has two silicon members, wherein each second PV mimic tile has one silicon member biased toward its left side, and wherein each third PV mimic tile has one silicon member biased toward its right side; and
a plurality of blank roof tiles,
wherein each subset circuit is configured to build to a target power production voltage,
wherein a plurality of first PV roof tiles, second PV roof tiles, and third PV roof tiles and a plurality of first PV mimic tiles, second PV mimic tiles and third PV mimic tiles are each arranged in a non-regular pattern so as to provide a visual aesthetic consistent between the production section and the non-production section.
2. The roofing system of claim 1, wherein each subset circuit is configured to build to a power production voltage of from 50 V to 80 V.
3. The roofing system of claim 1, wherein each subset circuit is configured to build to a power production voltage of from 300 V to 600 V.
4. The roofing system of claim 1, wherein a density of the first PV roof tiles, second PV roof tiles, and third PV roof tiles within the production section is equal to the density of first PV mimic tiles, second PV mimic tiles, and third PV mimic tiles within the non-production section.
5. The roofing system of claim 1, wherein a density of the first PV roof tiles, second PV roof tiles, and third PV roof tiles within the production section is greater than the density of first PV mimic tiles, second PV mimic tiles, and third PV mimic tiles within the non-production section.
6. The roofing system of claim 1, wherein a density of the first PV mimic tiles, second PV mimic tiles, and third PV mimic tiles within the non-production section is greater than the density of first PV roof tiles, second PV roof tiles, and third PV roof tiles within the production section.
7. The roofing system of claim 1, wherein the first PV roof tiles, the second PV roof tiles, and the third PV roof tiles are shaped to interlock with adjacent tiles within the production section.
8. The roofing system of claim 1, wherein the first PV roof tiles, the second PV roof tiles, and the third PV roof tiles are barrel tiles.
9. The roofing system of claim 1, wherein the first PV roof tiles, the second PV roof tiles, and the third PV roof tiles are s-shaped tiles.
10. The roofing system of claim 1, wherein the production section further comprises one or more members of the plurality of blank roof tiles.
11. The roofing system of claim 1, wherein the non-production section further comprises one or more members of the plurality of blank roof tiles.
12. The roofing system of claim 1, wherein the first PV roof tiles, the second PV roof tiles, and the third PV roof tiles all have a generally rectangular shape, and wherein longer edges of each of the first PV roof tiles, the second PV roof tiles, and the third PV roof tiles are oriented to be generally parallel with a width dimension of the roofing system.
13. The roofing system of claim 1, wherein the first PV roof tiles, the second PV roof tiles, and the third PV roof tiles all have a generally rectangular shape, and wherein shorter edges of each of the first PV roof tiles, the second PV roof tiles, and the third PV roof tiles are oriented to be generally parallel with a width dimension of the roofing system.
14. The roofing system of claim 1, wherein the first PV roof tiles further comprise embedded wiring electrical connections, the second PV roof tiles further comprise embedded wiring electrical connections, and the third PV roof tiles further comprise embedded wiring electrical connections, and wherein the first PV roof tiles, the second PV roof tiles, and the third PV roof tiles are electrically connected to each other via the embedded wiring electrical connections, thereby forming the subset circuit.
15. The roofing system of claim 1, further comprising a power lattice underlying the production section, inductively coupling the first PV roof tiles, the second PV roof tiles, and the third PV roof tiles.
16. The roofing system of claim 1, further comprising a power mat underlying the production section, inductively coupling the first PV roof tiles, the second PV roof tiles, and the third PV roof tiles.
17. The roofing system of claim 1, wherein each subset circuit further comprises a rapid shutdown device (RSD) configured to interrupt an electrical connection of the subset circuit.
18. The roofing system of claim 1, wherein solar cell modules of the first PV roof tiles, the second PV roof tiles, and the third PV roof tiles cover 70%-80% of a surface area of the production section.
19. The roofing system of claim 1, wherein the production section is configured to generate an energy production load in a range of around 7.8 kW/sqft.
20. The roofing system of claim 1, wherein the production section is configured to generate an energy production load in a range of around 15.75 kW/sqft.
21. The roofing system of claim 1, wherein the non-regular pattern is a randomized or semi-randomized layout.
22. The roofing system of claim 1, wherein each of the solar cell modules comprises a plurality of solar energy collecting elements.