The following article is from a series of alternative energy articles on the advantages of sun energy …

As people are educated about the need for conserving energy, many of us are opting to install a solar power system in the home. The solar powered household uses less electricity and is verymost environmentally friendly. However, many people are concerned about the expenses involved. In this article, we'll tell you how installing solar panels in your home can actually be an investment that will save you thousands of dollars in the long run.

Photovoltaic means electricity from light. This solar power system uses sun light to power ordinary electrical equipment like household appliances, computers and lights. Having your own solar photovoltaic (PV) system means that you can generate your own electricity from the free and inexhaustible power of the sun. A photovoltaic system never needs refueling, emits no pollution and can be expected to operate for twenty to twenty-five years with minimal maintenance needed. A typical PV system on a house roof could prevent over 34 tonnes of greenhouse gas emissions during its lifetime.

The electrical output of a PV cell is dependent upon the intensity of the light to which it is exposed. Therefore, PV cells usually generate more electricity on bright days than when skies are cludy. This does not mean that your solar system will not work when skies are grey. Over the last few years, PV technology has also started to be introduced into urban areas, incorporated into the roofs and facades of houses, business premises and factories.

There are a few ways to determine what size a solar power system for your home or office should be. You can install as many solar energy modules as your roof can handle. This will increase the solar power generating capacity to the point where it can eliminate your electricity bill. Initially, installing more solar energy panels increases the overall value of the system. However, installing more modules beyond a certain point ceases to be cost effective. It is necessary to do a careful solar site survey using a Solar Pathfinder to work out the net energy output of partially shaded modules and then determine if it is economically beneficial to install modules in those locations.

Investing in a solar power system for your home or office is a smart decision, both economically and environmentally. A properly designed and installed solar system can pay for itself in as little as 5 to 10 years — and even faster if you take advantage of manufacturer and government rebates. Solar electricity can raise the value of the home and create a brighter outlook for the future of our planet.

For more resources on solar power, visit: Alternate Energy