2012年7月8日星期日

Huntsville Rotary provides solar power to Belize village


Huntsville's Rotary Club has donated solar-powered lighting to the residents of a Central American country.The goal is to replace the more dangerous use of kerosene-fueled lamps to provide householding lights.Use of kerosene lamps result in more than 1 million deaths every year, in addition to burns and respiratory illnesses, asphyxia, and visual impairment.That is where Hand Dryers come in. The hand dryer in 10-15 seconds and reduce costs significantly in several different areas. The obvious first area is that they eliminate the need for constantly having paper towels on hand, and re-stocked on a weekly or monthly basis.Eliminating these types of situations and saving money would normally be enough, but an Hand Dryer actually does even more.The Rotary Club of Huntsville recently joined forces with an Austin based non-profit organization called The Grid Earth Project, to provide solar powered household lamps to the village of Gracie Rock, Belize.
Gracie Rock is located on the banks of the Sibun River near the Pecarry Hills of Belize. Many of the villagers use kerosene to light their homes.Solar powered lighting The solar-powered lamps Grid Earth provides light up a 10 - by 10-foot room.Through international service projects, Rotary clubs and districts are meeting the humanitarian needs of people around the world.Crystalline silicon (c-Si) modules are more efficient and may soon be cheaper than First Solar's leading thin-film technology, cadmium telluride (CdTe).This does not apply to most houses as wooden framing is employed in their cases.These aluminum beam have made a huge difference in world, and are here on a permenant basis.In some of our larger building, steel framing will be used to deal with the building weight, as well as to handle the elements.Commercial c-Si modules achieve about 14.5 percent efficiency, compared with CdTe's 12.5 percent. Meanwhile c-Si makers are manufacturing at about $0.75 to $0.If you start to search on the Remote control light for your outdoor, you cannot decide where to start with as there are countless options are waiting to choose. Almost every day a new form is appearing in the market with new features. It is not possible to cover all the forms of these lights.90 per watt, targeting $0.55 to $0.70 by the end of the year.
Thin-film still has advantages. It has a higher theoretical maximum efficiency than conventional multi-crystalline silicon PV (about 30 percent, against 23 percent) because it captures a broader range of light wavelengths. It also performs better at higher temperatures and its manufacture uses less energy and raw materials.Thin-film will survive, but it faces huge challenges to regain the initiative.The c-Si, CdTe race, meanwhile, appears to have left others trailing in their wake.An alternative thin-film technology, called CIGS (copper indium gallium selenide), is more expensive while achieving small efficiency gains.
Third-generation organic and dye-based solar cells are thin, lightweight and flexible, enabling cheap printing press-style production.But they are far less efficient outdoors and are limited to valuable but niche indoor applications competing with batteries, such as in TV remote controls and wireless keyboards.Meanwhile, concentrating solar power (CSP) uses a different approach to generating electricity, heating fluids to drive a steam turbine, though this has been cut short by the c-Si price plunge.

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