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September 25, 2008

Using the Sun for Power - How It Works

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With massive rebate programs and tax credits being issued by state and federal governments, using the sun to generate electricity is very popular. So, how does it work?

Generating electricity from the sun is all about converting sunlight into power. Importantly, the process has nothing to do with converting the heat produced by sunlight into energy. This common misconception leads to a lot of confusion regarding solar systems.

The technology behind solar systems is known as photovoltaic technology. Essentially, this technology involves using sunlight to create a chemical reaction. During the chemical reaction, electrons are released from the relevant material and collected by tiny wires. This process creates a direct current of electricity. The electricity is then converted to usable alternating current electricity and stored in a battery or fed into a utility grid system.

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July 20, 2008

Measuring Solar Power: What the Sun Has to Offer. (part 5)


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This article explains the fundamental terms related to sunlight and residential solar energy systems. You will learn about units of measure, forms of solar radiation, spectral distribution, energy distribution, and solar position.

Germany and Japan are often cloudy or foggy but is where most solar panels now sold in the United States are produced. Because of the way solar modules produce power from direct, diffused and reflected light it works great in these conditions. A very high performing solar array can be found on a foggy beach in California.

Measuring Light and How Solar Panels Use It

The following terms related to different aspects of light and their characteristics as they come in contact with different physical formations on Earth. The definitions below will help explain how some residential solar energy systems seemingly in areas with poor sun quality can actually achieve respectable power output.

Irradiance - The rate of solar radiation falling on a given area at a moment in time. Irradiance is measured in units of kW/m2 (read kilowatts per square meter).

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April 16, 2008

Use the Power of Sun and Wind with a Wind Turbine


Solar energy is energy derived from the sun. Solar energy, as well as well as other natural resources such as wind and wave power, is a readily available and renewable form of energy. This natural energy has been harvested in various ways for centuries, though only recently has technology allowed modern conveniences such as heating, lighting, electricity and flight to be solar-based. A wind turbine is a hybrid solar-wind generator that can provide power for a variety of industrial and arisolarwindicultural needs. The best available systems are quiet, durable, and have fast moving turbine blades for efficient performance. A wind-solar turbine also has a CPU-controlled generator, which provides protection against over-speed. The technology of some of these systems is comparable to that of electric cars. These systems have auto-regulating charge controls up 48 volts and wattages up to 3.5 kilowatts.

Users of wind-solar turbine systems have stated that products work even at temperatures as low as minus five degrees Fahrenheit. However, not all wind turbine units operate at optimal performance. Some of these products freeze up easily, are very noisy, and only turn in low levels of energy output. It's essential that you buy a turbine of high quality produced by a trusted manufacturer.

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April 1, 2008

Solar Lighting - Bringing The Light Into Your Life Via The Sun


The global demand for more environmentally friendly options for fuel, energy and food continues to grow and this growth is only expected to continue as concern about climate change increases. With this growth, more and better options for solar lighting are coming to the marketplace. Whether you need lighting for inside or outside your home, there are excellent, practical solar lighting options for you to choose from.

The advantages of using solar lights are many. The up front cost of solar lighting was once a problem for many people, but that has changed. The technology of solar lighting has continued to improve and the initial costs have gotten more reasonable. With the added advantage that the cost of solar energy is free, solar lighting is experiencing greater demand than ever before. Nowadays, solar landscape lights are almost ubiquitous in many neighborhoods.

What's available for inside your home:

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December 19, 2007

The Answer Is In The Sun


A massive amount of solar power is delivered daily to the Earth in the form of sunrays, which provides energy for all forms of life on Earth, influences the ocean's currents, the wind and prevailing atmospheric conditions. The solar power that is needed to perform these tasks represents only a fraction of the daily quota of available energy, the remainder goes mostly unused.



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