How Solar Power Works
June 19, 2009 by surfcrs
Filed under Learn More
Some people don’t understand exactly how solar power works, but have seen many different appliances and other items powered by solar energy. Many calculators work off the power of the sun, along with outdoor lighting fixtures, and even major electric companies use solar power to supply entire neighborhoods with their electricity. Almost anything that requires electricity can be powered by the sun, as long as a solar panel is used to convert the sunlight into usable electricity.
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Energy from the sun can be used in a number of different ways, ranging from being able to provide electricity to a home to being able to heat an entire building any time of the year. Solar power that is used for electricity purposes comes directly from the sun, and is then changed into usable electricity with the use of solar panels. The electricity created from the solar panels can be used to power practically anything in a typical household, ranging from kitchen appliances to a child’s nightlight.
This is how solar power works for direct conversion to electricity. Solar panels, which are also known as photovoltaic panels absorb sunlight. The solar panels are made of a semi-conducting material, which in most cases is silicon. Once the sunlight is absorbed by the silicon, the electrons are knocked loose from their atoms which cause them to flow through the solar panels to create usable electricity. This process is known as the photovoltaic effect, and occurs when light is converted into electricity with the use of solar panels.
Because homes need electricity even when the sun is gone, solar energy can be stored in a battery as direct current electricity. The electricity stored in the battery will supply a home even when the sun isn’t out, and then refills with sunlight the following day. If more electricity is being produced then needed and the battery is full, the usable solar power can actually be exported into a utility grid as long as the home is hooked up to one. This will ensure a home will have enough electricity even when the battery is empty, in the event of a cloudy day or other natural occurrence that blocks the sunlight for an extended period of time.
In the event that a home’s battery and utility grid are empty, a local electricity company will be ready to supply electricity to the homes that need it. The homeowners must pay for the supplied energy when their solar power isn’t working, but they can also be paid for any additional solar energy that is left in the utility grid once the month is over.
Solar energy can also be used to warm water, which in most cases is used for home pools. The water is heated by the sun with the use of solar thermal collectors, which actually absorb the heat from the sun’s rays and transfers the hot energy into the pool. Solar thermal collectors can also be used to heat a large building, and works by converting the sun’s energy into hot air.
This is a simple explanation for how solar power works. The basic concepts are fairly easy to grasp. Solar energy is used all over the globe, and is a cheap (in the long run) and clean way to provide electricity and heat to those who need it.

