The following extract is from a series of alternative energy articles, tips and information on the uses of sun energy …

As people learn more about the need to conserve energy, many of us are opting to install a solar power system in the home. The solar powered household consumes less electricity and is verymost environmentally friendly. However, many people are worried about the costs involved. In this excerpt, 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 future.

Photovoltaic means electricity from light. This solar power system uses the light of day to power ordinary electrical equipment like household appliances, computers and lighting. Having your own solar photovoltaic (PV) system means that you can generate your own electricity from the free and inexhaustible sun power. 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 home roof can prevent over 34 tonnes of greenhouse gas emissions during its lifetime.

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

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

A solar power system can save you money, but the real benefit is in the reduction of greenhouse gases. Solar power is a rapidly advancing technology and many governments offer incentives to homeowners who take steps to make their home environmentally friendly. You can put money back in your pocket while saving the planet for future generations.

For more articles on alternate energy, visit: Solar Thermal Energy