Solar energy is a renewable energy source created by harnessing the heat and light radiation emitted from the sun and converting it into electrical energy. Solar energy is immensely popular today. Due to the current concerns about global warming and electricity bills increasing almost everyday, it is no wonder people are searching for alternative techniques to power their homes. In the last few years, soaring energy demands, increasing environmental awareness and declining conventional fuel reserves have made us aware of the many solar energy advantages and forced us consider this alternative energy option.
Solar energy isn't a new idea by any means. The Greeks actually used solar architecture, many hundreds years ago. They constructed their houses at specific 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 cold weather, but were blocked during the heat of summer.
The sun offers us with an unlimited source of clean energy which could be easily harnessed through the use of photovoltaic panels. Solar energy is sensible for numerous reasons. First, the sun's output of energy is constant day in and day out. Clouds might block sunlight so, of course this type of energy works better in sunny climates. It's much more practical than building costly power lines into remote areas, where people might not have the money to pay for traditional electricity.
Solar energy could 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 efficient. A few of the main solar energy advantages are that working photovoltaics have no moving parts, are very plain in design, require little maintenance and certainly are environmentally friendly.
Setting up a solar energy system does not 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 installing your own photovoltaic panels.
Many 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 isn't totally dependent on solar power, this kind of system can decrease electricity bills and offer 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 need periodic maintenance. The panels themselves will require to be cleaned on a regular basis to allow maximum performance. The angle or tilt of some types of panel might have to be altered a few times a year and back again to allow for the regular 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 Solar energy in its raw form might be free from pollution, but making the devices that produce the energy needs extraction from mines and smelters, therefore causing pollution.
Home solar power systems could be a great way to drastically reduce, if not totally eliminate, your per month 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 simply a good idea. It offers a real alternative to out-of-date high-cost energy consumption.
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