When certain solids came into contact with light, it frees negative and positive charges in the solids and creates electrical activity i.e. electricity in them. The famous scientist, Albert Einstein received the Nobel prize in physics for analyzing this phenomena which came to be known as ‘the Photoelectric Effect’.
The following section explains in brief, how this phenomena is implemented in solar panels for electricity generation. It is estimated that 30% of energy is used to heat water, which can be generated using solar panels. Solar panels for electricity generation can last up to 25 years and there is almost no expenditure in maintaining them.
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Solar energy is a combination of heat and potential energy, that comes to the surface of the earth in the form of sun rays. When the sun rays or rather the radiation of the sun reaches the surface of the earth, in transforms itself into heat and light energy.
The heat and light energy, can be utilized by different techniques, to produce usable forms of energy. Many scientists have elaborated and emphasized the advantages of solar energy as a source of energy and a raw material for usable energy production. Some of the common solar energy appliances, that can be prominently used for domestic purposes.
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Today, everyone is looking for energy efficient refrigerators as they require less electricity consumption, thereby reducing overall energy bills. Buying an energy efficient refrigerator is one of the best investments if you are looking for energy savings in the long run. Energy efficient refrigerators can save a considerable amount of money on utility bills. Factors that determine the amount of energy the refrigerators consume are as follows:
• Refrigerator Size
• Configuration (top mounted or bottom freezer)
• Additional features like anti sweat heaters and ice makers
• Location of the refrigerator at home
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