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Showing posts from September, 2010

Walmart says thin (solar) is in | Grist

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Walmart says thin (solar) is in
by Todd Woody 21 Sep 2010 9:39 AM Walmart installed thin-film solar cells on this store in Mountain View, Calif. The company plans to put similar panels on 20-30 more stores.Photo: WalmartWhen Walmart announced on Monday that it would install 15 megawatts' worth of solar arrays on as many as 30 of its stores in California and Arizona, it set out to shape the solar market in more ways than one. The reason? The world's biggest retailer specified that many of the new solar installations should use thin-film photovoltaic panels. Thin-film solar cells are printed or deposited on glass or flexible materials. And although they are less efficient at converting sunlight into electricity, they can be produced at a lower cost than traditional crystalline silicon solar cells.
Thin-film solar currently accounts for just about 20 percent of the solar market. The most technologically advanced versions have had a difficult time grabbing market share due…

Vu1 Corporation

Vu1 Corporation: "- Sent using Google Toolbar"
This all leads me to suggest that the lighting industry should not be putting all of its “eggs in one basket”. LEDs will likely prove to be a great solution in many applications. They are already showing great promise in automotive, street lights, traffic signals, retail and display applications. Unfortunately, some of the basic characteristics of LEDs may keep them from being the best solution in general illumination lighting. Concerns regarding brightness, spectrum, glare, dissipation, CRI and cost are issues that may not have easy solutions.

LEDs Magazine - All-plastic LED lamp targets outdoor illumination

LEDs Magazine - All-plastic LED lamp targets outdoor illumination: "- Sent using Google Toolbar"
Two Japanese companies, Iwasaki Electric Co., Ltd. and Teijin Limited, have jointly developed a completely plastic LED lamp.
The lamp uses a high-thermal-conductivity resin for the housing in place of aluminum. The resin is made by combining Teijin’s Raheama(tm) high-thermal-conductivity carbon material with polycarbonate resin.