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 inexhaustible resource and of the earliest method of energy consumption that is available at present. The significant 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 4.5 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 substitute to man made energy resources. Over much studies it was found energy could be acquired at some cheaper source. The demand for solar energy has grown substantially within the range of 20-25% over the last twenty years. Solar energy is able to support home 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 costs 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 acquainted 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 required to burn 100 watt light bulb for roughly 10 hours. An average American household consumes 866 kilowatt hours per month. 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 growth in growth rates and thereby making it an important energy resource. Since 2000, solar energy has been expanding at an incredible rate of 40% per annum. Solar energy is moving at a increasing rate in the developing countries too as the consumption of fossil fuel has doubled over the years. When compared to solar energy which is unlimited, fossil fuel reserves are decreasing.  As compared to expensive power grids, setting up solar energy gadgets is relatively easy. A disadvantage of fossil fuels is that the prices have risen together with the price of transporting coal, oil and gas. These are just some of the facts about solar energy.