Solar energy is a energy which is given by the sun .
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You can try and go on google. And see what they have in mind
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http://google.com/
from SUN
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I would definitely try Wikipedia.
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Fortunately, I have a good news for you. With the rising cost of electrical bills, there are many different ways for alternative homemade energy so that you can provide your own electricity. The 2 ways that I highly recommend is through DIY solar energy and wind energy. Such renewable sources are economical and environmentally friendly to tap on.
For the DIY solar energy, you can easily install a solar panel to obtain the energy to power your household needs. And such homemade energy solution is not difficult to build. In fact, you can find the materials in any hardware store down the streets. They are inexpensive also; you can easily buy them for less than $200.
An alternative homemade energy that you can consider during cloudy days is the wind energy. During days like this, your DIY solar energy would not be able to provide you with much energy. And you can consider building your very own windmills in your backyard. And the cost of building a windmill is even cheaper than the solar panels. And with the right guide, you can easily build both and get started with generating your own electricity.
Such DIY solar energy and windmills are easy ways for you to tap on the natural resources. In fact, you can play your part in saving mother Earth by not using too much coal energy. Such homemade energy is the best method for you to save money.
In fact, if you are good at generating homemade energy with DIY solar energy and windmills, you can even generate extra energy which will flow back into the grid. And your electrical company is actually obliged to pay you for generating extra energy for them!
Now you can build your own home-made wind generator or solar powered panels following a simple step-by-step guide with everyday materials and save hundreds of dollars on monthly power bills and help the environment.
For More Information Visit:
http://offto.net/diysolar
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"DIY Solar & Wind Energy For Your Home – Save Money, Save Environment!"
http://offto.net/diysolar
Well perhaps you can Google for this info and since you are the conserving type you should also spend time learning about water and the need to conserve it. Visit http://www.bewaterwise.com/tips01.html for some excellent thing you can do at home to save both energy and water.
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I know it is an unusual suggestion in this internet age, BUT you MIGHT try the local LIBRARY!!
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the best way to search for those things are the websites of googlo.com and wikipedia.com. u can even try howstuffswork.com
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Solar energy is a energy which is given by the sun .
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that guy called Vansh says..Solar energy is the energy u get from the sun !
no wonder India is going to the dogs !
now to ur ques..there are no easy solutions to a full sun based power set up for urban homes
even in the US..it would cost no less than Rs 250 to 300 per watt
so a simple 3 Kw thing which can run a small AC and some smaller stuff will cost u no less than 8 to 9 lacs..and remember its not reliable also..sunny days are fine other wise u need grid power
wind is not feasible in most areas in urban India too
i have designed some solutions…though u wont be able to run ACs on them
so if needed write to me at atul292@gmail.com
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a new generation of power plants with concentrating solar power systems uses the sun as a heat source. The three main types of concentrating solar power systems are: linear concentrator, dish/engine, and power tower systems.
Linear concentrator systems collect the sun’s energy using long rectangular, curved (U-shaped) mirrors. The mirrors are tilted toward the sun, focusing sunlight on tubes (or receivers) that run the length of the mirrors. The reflected sunlight heats a fluid flowing through the tubes. The hot fluid then is used to boil water in a conventional steam-turbine generator to produce electricity. There are two major types of linear concentrator systems: parabolic trough systems, where receiver tubes are positioned along the focal line of each parabolic mirror; and linear Fresnel reflector systems, where one receiver tube is positioned above several mirrors to allow the mirrors greater mobility in tracking the sun.
A dish/engine system uses a mirrored dish similar to a very large satellite dish. The dish-shaped surface directs and concentrates sunlight onto a thermal receiver, which absorbs and collects the heat and transfers it to the engine generator. The most common type of heat engine used today in dish/engine systems is the Stirling engine. This system uses the fluid heated by the receiver to move pistons and create mechanical power. The mechanical power is then used to run a generator or alternator to produce electricity.
A power tower system uses a large field of flat, sun-tracking mirrors known as heliostats to focus and concentrate sunlight onto a receiver on the top of a tower. A heat-transfer fluid heated in the receiver is used to generate steam, which, in turn, is used in a conventional turbine generator to produce electricity. Some power towers use water/steam as the heat-transfer fluid. Other advanced designs are experimenting with molten nitrate salt because of its superior heat-transfer and energy-storage capabilities. The energy-storage capability, or thermal storage, allows the system to continue to dispatch electricity during cloudy weather or at night.
Solar cells, also called photovoltaic (PV) cells by scientists, convert sunlight directly into electricity. PV gets its name from the process of converting light (photons) to electricity (voltage), which is called the PV effect. The PV effect was discovered in 1954, when scientists at Bell Telephone discovered that silicon (an element found in sand) created an electric charge when exposed to sunlight. Soon solar cells were being used to power space satellites and smaller items like calculators and watches. Today, thousands of people power their homes and businesses with individual solar PV systems. Utility companies are also using PV technology for large power stations.
Solar panels used to power homes and businesses are typically made from solar cells combined into modules that hold about 40 cells. A typical home will use about 10 to 20 solar panels to power the home. The panels are 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. Many solar panels combined together to create one system is called a solar array. For large electric utility or industrial applications, hundreds of solar arrays are interconnected to form a large utility-scale PV system.
A large silicon solar array installed on the roof of a commercial building.
Thin-film solar tiles installed on the roof of a home in Ohio.
A large solar array in Germany.
Traditional solar cells are made from silicon, are usually flat-plate, and generally are the most efficient. Second-generation solar cells are called thin-film solar cells because they are made from amorphous silicon or nonsilicon materials such as cadmium telluride. Thin film solar cells use layers of semiconductor materials only a few micrometers thick. Because of their flexibility, thin film solar cells can double as rooftop shingles and tiles, building facades, or the glazing for skylights.
Third-generation solar cells are being made from variety of new materials besides silicon, including solar inks using conventional printing press technologies, solar dyes, and conductive plastics. Some new solar cells use plastic lenses or mirrors to concentrate sunlight onto a very small piece of high efficiency PV material. The PV material is more expensive, but because so little is needed, these systems are becoming cost effective for use by utilities and industry. However, because the lenses must be pointed at the sun, the use of concentrating collectors is limited to the sunniest parts of the country.
http://www.rain.org/~philfear/how2solar.html
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