Thứ Ba, 22 tháng 1, 2013

Solar Energy Facts

Solar energy is a clean renewable source of energy that has been harnessed or used by humanity directly or indirectly for thousands of years. The purpose of solar energy is to harness the suns power and converting it into electricity. The sun gives off enough output that if we were to harness its energy for one day we would have enough energy to power the whole world for a full year. The suns energy is an energy we don't need to worry about running out or diminishing any time soon. According to scientists the sun should keep burning for another 4.5 Billion years. Another advantage is that the sun does not produce any harmful byproducts or pollutants that could harm the environment.
Mankind has used the sun for a long time now. Man has used the sun for drying of meats or skins or just having direct sunlight as a heat source. In the early 1950's solar power was starting to be looked at as clean new form of electricity. Due to technology restraints the reality of cheap efficient panels has really only now been a reality.
General Facts
o Solar energy is a clean renewable energy that is better for the environment and produces no pollutants like traditional energy forms.
o Demand for solar electric energy has consistently grown by 20-25% per year over the past 20 years.
o Solar is capable of powering household appliances, lighting, and water heaters.
o Solar will be more affordable in future with new scientific researches that should decrease the costs and increase the efficiency of the solar energy.
o Solar could generate 2.5 percent of the world's electricity by 2025.
o Solar Energy is one of the fastest growing technologies.
Solar Energy Usage Facts
o Solar is measured in kilowatt hours (KW) 1 kilowatt =100 watts.
o 1 Kilowatt hour =Amount of electricity needed to burn a 100 watt light bulb for 10 hours.
o The average American household uses approximately 866 kilowatt hours per month.
o According to the Residential Energy Consumption Survey from 2001 the annual energy bill for an American home was $2000 a month.
o Solar energy's reduction in unit costs has yielded its growth rates and therefore solar energy has potential to become very important energy source.
o Since the year 2000 solar has been really expanding in United States, growing at an incredible average pace of 40% per year.
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