System and method for placement of photovoltaic strips
View Patent ↗A method for forming a solar energy collection device includes receiving a sheet of glass, wherein the sheet of glass includes light concentrating geometric features, applying a light source to the light concentrating geometric features, determining physical concentration characteristics for each of the light concentrating geometric features in response to the light source that is applied, associating the physical concentration characteristics for each light concentrating geometric features with an identifier associated with the sheet of glass in a computer memory, determining placements for a plurality of PV strips relative to the sheet of glass in response to the physical concentration characteristics for each light concentrating geometric features stored in the computer memory, and securing the plurality of PV strips relative to the sheet of glass in response to the placements for the plurality of PV strips relative to the sheet of glass.
1. A method for forming a solar energy collection device comprising:
receiving a sheet of glass, wherein the sheet of glass includes a plurality of light concentrating geometric features;
applying a light source to the plurality of light concentrating geometric features;
determining physical concentration characteristics for each of the plurality of light concentrating geometric features in response to the light source that is applied;
associating the physical concentration characteristics for each of the plurality of light concentrating geometric features with an identifier associated with the sheet of glass in a computer memory;
determining placements for a plurality of PV strips relative to the sheet of glass in response to the physical concentration characteristics for each of the plurality of light concentrating geometric features stored in the computer memory; and
securing the plurality of PV strips relative to the sheet of glass in response to the placements for the plurality of PV strips relative to the sheet of glass that are determined;
wherein determining the physical concentration characteristics comprises:
disposing a sheet of light diffusing material adjacent to the sheet of glass; and
determining the physical concentration characteristics for each of the plurality of light concentrating geometric features with a light detector directed towards the sheet of light diffusing material;
wherein the securing comprises:
disposing the plurality of PV strips on top of the sheet of light diffusing material; and
subjecting the sheet of light diffusing material to a lamination process with a controlled variable pressure profile.
2. The method of claim 1 wherein the light source comprises a collimated light source selected from a group consisting of: an LED light source, the Sun, a laser, and an incandescent light source.
3. The method of claim 2 wherein determining physical concentration characteristics comprises determining with a CCD array, physical concentration characteristics for each of the plurality of light concentrating geometric features in response to the light source that is applied.
4. The method of claim 1 wherein the plurality of light concentrating geometric features are selected from a group consisting of: semicircular-shaped, triangular-shaped, ovoid-shaped.
5. The method of claim 1 wherein securing comprises:
using a device to pick-up the plurality of PV strips; and
using the device to place the plurality of PV strips relative to the sheet of glass in response to the placements for the plurality of PV strips relative to the sheet of glass.
6. The method of claim 1 wherein the sheet of light diffusing material is selected from a group consisting of: an adhesive material, an ethylene vinyl acetate material.
7. The method of claim 1 wherein the physical concentration characteristics for each of the plurality of light concentrating geometric features comprises an association between exitant intensity and location on the sheet of glass.
8. The method of claim 7
wherein determining placements comprises determining PV alignment lines associated with each of the plurality of light concentrating geometric features in response to the association between the exitant intensity and location on the sheet of glass; and
wherein securing comprises placing the plurality of PV strips relative to the sheet of glass in response to the alignment lines.
9. The method of claim 1 wherein the exitant regions associated with each light concentrating geometric feature is determined responsive to a CCD array.
10. The method of claim 1 wherein the plurality of light concentrating geometric features are selected from a group consisting of: semicircular-shaped, triangular-shaped, ovoid-shaped.
11. The method of claim 1
wherein the light diffusing layer comprises a layer of adhesive material adjacent to the sheet of glass, and
wherein the light diffusing layer is disposed between the sheet of glass and the plurality of photovoltaic strips.
12. The method of claim 11 wherein the adhesive material is selected from a group consisting of: ethylene vinyl acetate, polyvinyl butyral, Surlyn, a thermoset material, and a thermoplastic material.
13. The method of claim 1 wherein the plurality of photovoltaic strips are disposed between a backing material and the sheet of glass;
wherein the plurality of photovoltaic strips are laterally separated by the adhesive material.
14. The method of claim 1 wherein a range of variation in pitch of the light concentrating geometric features is 1% to 10%.
15. The method of claim 1 wherein a width of a photovoltaic strips compared to a width of an adjacent exitant region is approximately 25% greater.
16. The method of claim 1 wherein an exitant region associated with a light concentrating geometric feature is not centered with respect to the light concentrating geometric feature.