Wednesday, October 22, 2008

Solar Power For Homes

By Adrian Fletcher

Solar power for the home has made great strides since its early beginnings. Technological advancements have allowed commercially available building materials to incorporate solar cells, which turns them into solar panels that are virtually invisible to the naked eye.

There are two ways that solar power for homes is supplied. These are off-grid and on grid or net metering. A stand alone solar power system acts as the sole source of electricity for your home and is off the grid as such. Alternatively, supplemental solar power systems, can supply all of your homes energy depending on sunlight availability. When sunlight is not available, your home can use energy from the power grid.

Standalone solar power systems and supplemental systems for the generation of solar power for homes contain the same fundamental parts. At the outset are the photovoltaic panels, generally referred to as PV or solar panels, which are equipped with a solar cell or semiconductor that transforms the sun's rays into electricity. The electricity then is routed to a regulator/controller which maintains the electric current at the voltage/amperage level the system is made for. Electricity then is routed into your home's electrical system or else into a battery array or a storage system which will keep the solar power ready for when the sun sets.

If your home is connected to a power company grid you do not have to install a storage system, but it does have its advantages as it will help to further lower your monthly utility bill, and it will make power available to you during a power outage.

It is now cheaper and simpler than ever before to reduce or eliminate your need for outside electricity by using solar power for homes. Several types of building materials include awnings, roofing materials, car port roofing, and edges of window panes. This kind of solar panel is known as Building Integrated Photovoltaics. If used for roofing material, such panels provide the same measure of home protection as do asphalt shingles, even while they function as a solar panel.

One of the greatest obstacles to using solar power for homes has traditionally been the up-front expense. Now, however, there are avenues to offsetting that expense. Government grants are available which go a long way toward subsidizing your household's conversion to solar power. Federal rebates for solar power installations can vary year from year, and each state that offers one has its own incentives ranging from additional rebates to offering low-interest rates to finance green projects.

Besides the fact that you'll make your home greener using solar power for homes, you'll also be seeing lots of "green" with all the savings on your utility bill. You may even be able to eliminate a utility bill altogether. A growing number of utility companies now have a metering program allowing you to sell to the power company any excess power produced by your solar power system. Selling your excess electricity to the power company is a good idea and more net metering programs will be enacted in various states in the future. An incentive to sell your electricity to the utility company benefits other people that can use the power and reduces the utility companies need on coal and other fossil fuels to generate electricity.

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