How Does Solar Power for Homes Work

November 20, 2008 · Filed Under construction 

With energy prices rising higher and higher with no end in sight, these days, the question of how does solar power work is firing up the curiosity of many money-conscious families and individuals. A major concern for people considering going solar is the cost of equipment and installation, but federal and state grants to help defer these costs are becoming increasingly available. Notwithstanding what may seem like a high installation cost, using solar power in the home is a great option for the long term and the ongoing savings will soon off-set the initial outlay.

In both residential and commercial applications the basic concept of how does solar power work is exactly the same with the only difference being the scale of the installation requirements. A factory or warehouse is obviously going to require a larger amount of energy hence a more complex and more expensive installation would need to be in place.

In a nutshell, solar panels are like power lines with a semiconductor to produce electricity when the sun’s rays are focused on them. They can serve multiple purposes, such as heating your water or air through your building’s HVAC system. The electricity generated by solar power, is usually routed to your controller/regulator. At that point the voltage or amperage is modified to your system’s needs. Finally it is routed to your electrical or storage system.

The basic components of a solar power system are:
Photovoltaic or solar panels also known as PV panels.
Current regulator or controller to control the voltage/amperage of the incoming electricity generated by the solar panel.
Storage system. Typically an array of batteries to store the energy created by the solar panels that is not used during the day.

Depending on your location or the type of installation, solar panels can vary quite a bit in cost, For instance, if the building is industrial, and is located in a remote area, than you would probably use the typical box shaped panels. When it comes to commercial usage, solar panels can both be installed on the large roof space available on top of businesses and industrial buildings and on the ground in arrays of panels to generate even more solar power.

Solar panels can be located on the roof, on the ground, and on a pole. Exposure to the sunlight is maximized with ground and pole mounts since the options for placement are higher than a roof placement. This is especially true when the roof is shaded parts of the day. Another added option is equipment to turn the panel so that it receives the suns rays directly throughout the day. Solar power has its drawbacks when the sun goes down or during extended cloudy periods . That problem can be solved with a battery back-up or a connection to a supplemental source such a utility company.

Solar cells can be built right into the structure’s roof, awning, and window materials for those who are hoping for a more discreet installation that will also serve a dual purpose. If you own a residence and need a new roof, consider that there are available roofing materials with solar cells built in. This new material will provide the same functionality as an asphalt shingle while at the same time, operating as a solar panel. By using the new solar power design you’ll be to enjoy the benefits of solar power without the risk that your home will resemble someone’s idea of a space ship.

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