Facts about solar energy help you to understand how solar energy works, for example with solar flagpole lights, and how you can save some dollars without having to run a high energy bill with your home or gardening, desert landscaping decor. Solar energy is a inexhaustible resource and of the oldest method of energy use 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 4.5 billion years according to scientists. Sun never create any hazardous by-product which could harm the environment.
During the early 1950s solar energy was looked upon as an substitute to man made energy resources. Through much research it was found energy could be acquired 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 gadgets, lighting such as wall sconces and water heaters. As of the moment, solar energy is more heavily priced but in the near future with the growth in scientific studies, it will bring down the prices 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 primary 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 required to burn 100 watt light bulb for approximately 10 hours. 866 kilowatt is the use by an average American household. 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 increase 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 going at a raising rate in the developing countries too as the use of fossil fuel has doubled over the years. When compared to solar energy which is unlimited, fossil fuel reserves are diminishing. Setting up solar energy appliances is relatively easier in the more remote areas in comparison for setting up an expensive power grid structure. A disadvantage of fossil fuels is that the prices have risen together with the price of transporting coal, oil and gas.