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New solar panel 50% cheaper than existing models

Posted on Saturday, May 19 2007 @ 09:33:05 CEST by

A Californian company claims it has developed a new solar panel that only costs half as much as conventional panels:
According to the MIT Technology Review, Soliant Energy's new Heliotube panel produces the same amount of energy as traditional solar arrays used in residential electrical systems, however a unique design reduces the amount of expensive photovoltaic material by almost 90 percent. Semiconductor-based photovoltaic (PV) material is needed to perform the actual conversion of solar energy to electricity inside a solar array, but the material is costly to produce.

Commercial solar energy production systems typically use mirrors and lenses to focus sunlight on the PV surfaces, making for more efficient energy production with a smaller PV surface area. In addition, panels are often mounted on posts that can pivot to follow the movements of the sun throughout the day, further concentrating the amount of sunlight reaching the PV material. However, these more efficient designs with moving mechanisms are impractical for smaller residential systems, which usually rely on a limited number of stationary, roof-mounted panels.
More info at DailyTech.



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