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 Solar energy: Simple and economical.

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ChrisParton
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PostSubject: Solar energy: Simple and economical.   Thu Apr 14, 2011 3:52 am

There are many reasons why more and more people are turning to solar energy. One of them is the incredible government backed financial incentive called the Feed in Tariff. The incentive doesn't just help you save £1,000 every year; it also delivers a tax free return on investment of 8 – 10%.

[You must be registered and logged in to see this link.] systems use the sun's energy and light to provide heat, light, hot water, electricity, and even cooling, for homes, businesses, and industry. There are a variety of technologies that have been developed to take advantage of solar energy.

Solar cells convert sunlight directly into electricity. Solar cells are often used to power calculators and watches. They are made of semiconducting materials similar to those used in computer chips. When sunlight is absorbed by these materials, the solar energy knocks electrons loose from their atoms, allowing the electrons to flow through the material to produce electricity. This process of converting light (photons) to electricity is called the photovoltaic (PV) effect.

Solar cells are typically combined into modules that hold about 40 cells; a number of these modules are mounted in PV (Photovoltaic) arrays that can measure up to several meters on a side. These flat-plate PV arrays can be mounted at a fixed angle facing south, or they can be mounted on a tracking device that follows the sun, allowing them to capture the most sunlight over the course of a day. Several connected PV arrays can provide enough power for a household; for large electric utility or industrial applications, hundreds of arrays can be interconnected to form a single, large PV system.
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PostSubject: Re: Solar energy: Simple and economical.   Sat Apr 16, 2011 3:36 am

Nice! para sa Nature yes astig!

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