Finding The Facts About Solar Energy
Facts about solar energy help you to understand how solar energy works and how you can save some dollars without having to run a high energy bill. Solar energy is a renewable resource and of the oldest method of energy use that is available at present. The critical fact about solar energy is that the sun s rays 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. The sun does not create any other hazardous by products which could harm the natural environment.
During the early 1950s solar energy was looked upon as an alternative to man made energy resources. Through much research it was found energy could be obtained at much 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 appliances, lighting and water heaters. As of the moment, solar energy is more heavily priced but in the near future with the growth in technological researches, it will bring down the prices and also growth 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 electricity which is necessary to burn 100 watt light bulb for around 10 hours. An average American household consumes 866 kilowatt hours per month. The Residential Energy use Survey conducted in 2001 shows that an annual energy bill was around $2000.
A reduction in unit costs has added towards an growth in growth rates and thereby making it an critical energy resource. After year 2000, solar energy has shown a growth rate of 40% per annum. Solar energy is going at a progressive rate in the developing countries too as the use of fossil fuel has doubled over the years. When compared to solar energy which is inexhaustible, fossil fuel holds are decreasing. As compared to expensive power grids, setting up solar energy appliances is relatively easy. 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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