May 242010
 

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If you are interested in getting to know how solar energy works and reducing a little from your household energy bill, facts about solar energy will help you. Solar energy is a renewable resource and of the earliest method of energy consumption that is available at nowadays. The significant fact about solar energy is that the sun s beams are so powerful that if we are to convert that into energy it would mean that Earth will never run out of energy for at least another four point five billion years according to scientists. Sun never create any hazardous by-product which could harm the environment.

During the early fifties solar energy was looked upon as an alternative to man made energy resources. Through some research it was found energy could be acquired at some cheaper source. With a constant figure of 20% – 25% demand growth year-by-year, the solar energy demand increases for last two decades. Solar energy is able to support household gadgets, lighting and water heaters. As of the moment, solar energy is more heavily priced but in the near future with the increase in technological studies, it will bring down the costs and also increase its efficiency. By 2025, it is expected to generate 2.5% of the world energy demand through solar energy. Solar energy can be considered as the fastest growing technology.

There are some fundamental facts about solar energy that one needs to be presented to; solar energy is measured in kilowatt hours and 1 kilowatt=100 watts. One kilowatt hour is equal to the total of electrical energy which is necessary to burn 100 watt light bulb for roughly 10 hours. 866 kilowatt is the consumption by an average American household. The Residential Energy consumption Survey conducted in 2001 shows that an annual energy bill was around $2000.

A reduction in unit costs has contributed towards an increase in growth rates and thereby making it an significant energy resource. After year 2000, solar energy has shown a growth rate of 40% per annum. Solar energy is moving at a progressive rate in the developing countries too as the consumption of fossil fuel has doubled over the years. When compared to solar energy which is infinite, fossil fuel reserves are diminishing. Setting up solar energy gadgets is relatively easier in the more remote areas in comparison for setting up an expensive power grid structure. A disfavor of fossil fuels is that the prices have risen together with the price of transporting coal, oil and gas.


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 Posted by at 7:24 am