Solar energy is a renewable energy source created by harnessing the heat & light radiation emitted from the sun and converting it into electrical power. Solar energy is immensely popular today. Due to the current concerns about global warming and electricity bills going up almost each day, it's no wonder people are searching for alternative methods to power their homes. In the last few years, soaring energy demands, rising 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 is not a new idea by any means. The Greeks actually used solar architecture, many hundreds years ago. They constructed their houses at certain angles to get the best benefit from the sun's rays since 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 offers us with an unlimited source of clean energy which could be easily harnessed through the use of photovoltaic panels. Solar energy makes sense for lots of reasons. First of all, the sun's output of energy is steady day in and day out. Clouds may block sunlight so, certainly this type of energy works better in sunny climates. It's much more practical than building costly 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, actually everything we use conventional electricity for. Of all the solar energy technologies, photovoltaics (PV) is the most effective. 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 of course are environmentally friendly.

Setting up a solar energy system doesn't just benefit the environment. It has other benefits like decreasing household energy bills. One advantage not often mentioned, is you can actually increase your house value by setting up 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 type of system can decrease electricity bills and provide a viable backup system in case the local power grid fails.

We've listed several solar energy advantages, but there are also certain disadvantages we should be aware of. Photovoltaic panels will require periodic maintenance. The panels themselves will need to be cleaned on a regular basis to allow maximum performance. The angle or tilt of some types of panel might 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 need valuable raw materials, whose scarcity can often increase 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 might be free from pollution, but making the devices that produce the energy needs 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 could be designed to provide both electricity and hot water, and in most cases, are quite easy to install. Today, energy conservation is no longer just a good idea. It offers a real alternative to out-of-date high-cost energy consumption.

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