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Solar energy is a renewable energy source created by harnessing the heat & light radiation emitted from the sun and converting it into electricity. Solar energy is immensely popular today. Because of the current concerns about global warming and electricity bills going up almost everyday, it's no wonder people are looking for alternative techniques to power their homes. In the last few years, soaring energy demands, rising environmental awareness and declining traditional fuel reserves have made us aware of the many solar energy advantages and forced us look into this alternative energy option.

Solar energy is not a new idea by any means. The Greeks actually used solar architecture, many hundreds years ago. They constructed their houses at particular angles to get the greatest benefit from the sun's rays as the sun moves across the sky at different angles from summer to winter. Thus the sun's rays entered during the weather, but were blocked during the heat of summer.

The sun provides us with an unlimited source of clean energy which can be easily harnessed through the use of photovoltaic panels. Solar energy makes sense for lots of reasons. Firstly, the sun's output of energy is constant day in and day out. Clouds might block sunlight thus, naturally this type of energy works better in sunny climates. It is much more practical than building expensive power lines into remote areas, where people may not have the money to pay for traditional electricity.

Solar energy can be used for water heating, cooking, drying, refrigeration, in fact all we use conventional electricity for. Of all the solar energy technologies, photovoltaics (PV) is the most effective. Some of the main solar energy advantages are that working photovoltaics have no moving parts, are very simple in design, require little maintenance and of course are environmentally friendly.

Setting up a solar energy system doesn't just benefit the environment. It has other benefits like reducing household energy bills. One advantage not often mentioned, is you could actually increase your house value by setting up your own photovoltaic panels.

Some homes use a combined power system that integrates the use of solar energy along with power supplied by an existing power grid. Although the house is not totally dependent on solar power, this type of system can decrease electricity bills and provide a viable backup system in case the local power grid fails.

We have listed several solar energy advantages, but there're also certain disadvantages we should be aware of. Photovoltaic panels will require periodic maintenance. The panels themselves will have to be cleaned on a regular basis to allow maximum performance. The angle or tilt of some types of panel may need to be altered a few times a year and back again to allow for the seasonal movement of the sun.

Solar, like all sources of energy does require valuable raw materials, whose scarcity can often raise costs. In the case of solar, one in particular is silicon, which is used to make the thin wafers for solar cells energy in its raw form may be free from pollution, but making the devices that produce the energy requires extraction from mines and smelters, thus causing pollution.

Home solar power systems could be a great way to drastically reduce, if not totally eliminate, your monthly power bills. They can be designed to provide both electricity and hot water, and generally, are quite easy to install. Today, energy conservation is no longer just a good idea. It offers a real alternative to outdated high-cost energy consumption.

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