WHL Architects

1289 Reamwood Avenue Studio B
Sunnyvale, CA 94089-2261

Solar Photovoltaics Solar Photovoltaics

WHL Architects would like to share information and our expertise in solar photovoltaics with you.

Solar cells, also called photovoltaic (PV) cells by scientists, convert sunlight directly into electricity. PV gets its name from the process of converting light (photons) to electricity (voltage), which is called the PV effect. The PV effect was discovered in 1954, when scientists at Bell Telephone discovered that silicon (an element found in sand) created an electric charge when exposed to sunlight.


Soon solar cells were being used to power space satellites and smaller items like calculators and watches.


Traditional solar cells are made from silicon, are usually flat-plate, and generally are the most efficient. Second-generation solar cells are called thin-film solar cells because they are made from amorphous silicon or nonsilicon materials such as cadmium telluride. Thin film solar cells use layers of semiconductor materials only a few micrometers thick. Because of their flexibility, thin film solar cells can double as rooftop shingles and tiles, building facades, or the glazing for skylights.


Third-generation solar cells are being made from a variety of new materials besides silicon, including solar inks using conventional printing press technologies, solar dyes, and conductive plastics. Some new solar cells use plastic lenses or mirrors to concentrate sunlight onto a very small piece of high efficiency PV material. The PV material is more expensive, but because so little is needed, these systems are becoming cost effective for use by utilities and industry. However, because the lenses must be pointed at the sun, the use of concentrating collectors is limited to the sunniest parts of the country.


We have completed successful projects for Silicor Materials [formerly called CaliSolar], and, Thin Silicon.

 
We have also been working with Alta Devices since their inception [2008] and continue to work with them as Alta Devices [Subsidiary of Hanergy] in their development of ELO flexible solar film as of 2017.
 

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