solar panel

making solar panels for science fair



Flexible Solar Panel
Making Solar Panels For Science Fair
Mini Solar Panels 12 Volts
Solar Panels Electric
Solar Panels On Air Conditioners


Solar Panel
How Do Solar Panels Work
How To Build A Solar Panel
Solar Energy Panels
Solar Power Panels
Solar Electric Panels
Solar Panel Cost
Solar Panels How They Work
How To Make Solar Panels
Solar Panel Costs
Solar Panel Systems
Rooftop Solar Panels
Flexible Solar Panel
How Solar Panels Get Electricity From The Sun
Small Scale Solar Panels
Portable Solar Panel
Used Solar Panel
12 Volt Solar Panels
Panel Solar Works
Residential Solar Panel


Solar Panel


Solar Power How It Works
By Anita van Wyk, Fri Dec 9th

Solar power How it works seems like a mystery to some, but we'veall seen it used to power everyday things like calculators. Itis also used to supply electricity to the appliances and lightswe use in our homes.

Even utility companies use solar power to supplying hundreds ofhouses with megawatts of electricity.

If you decide to power your house with a solar electric system,you will receive FREE power from the sun, once your system is paid for.

Here are two of the most frequently asked questions for solar power how it works.

How is solar energy used?

1.) Solar energy works by converting the sun's rays intoelectricity with the use of solar panels to supply power to theappliances use in our homes.

2.) Solar energy works by converting the sun's rays into heatwith the use of solar thermal collectors for warming water, i.e.for the swimming pool.

3.) Solar energy works by converting the sun's rays into hot airfor heating buildings with the use of solar thermal collectors.

How do solar panels work?

1.) Rays of sunlight hit the solar panel (also know as aphotovoltaic/ PV) and are absorbed by semi-conducting materialssuch as silicone.

2.) Electrons are knocked loose from their atoms, which allowthem to flow through the material to produce electricity. Thisprocess whereby light (photo) is converted into electricity(voltage) is called the photovoltaic (PV) effect.

3.) An array of solar panels converts solar energy into DC(direct current) electricity.



The DC electricity then enters an inverter.

5.) The inverter turns DC electricity into 120-volt AC(alternating current) electricity needed by home appliances.

6.) The AC power enters the utility panel in the house.

7.) The electricity (load) is then distributed to appliances orlights in the house.

8.) When more solar energy is generated that what you're using -it can be stored in a battery as DC electricity. The batterywill continue to supply your home with electricity in the eventof a power blackout or at nighttime.

9.) When the battery is full the excess electricity can beexported back into the utility grid, if your system is connectedto it.

10.) Utility supplied electricity can also be drawn form thegrid when not enough solar energy is produced and no excessenergy is stored in the battery, i.e. at night or on cloudydays.

11.) The flow of electricity in and out of the utility grid ismeasured by a utility meter, which spins backwards (when you areproducing more energy that you need) and forward (when yourequire additional electricity from the utility company). Thetwo are offset ensuring that you only pay for the additionalenergy you use from the utility company. Any surplus energy issold back to the utility company. This system is referred to as"net-metering".

To find out more about Solar Energy, please visit Facts AboutSolar Energy today.

About the author:The author is commited to educating people about the benefits ofusing Solar Energy through her website


All content published on this web site is provided for informational and educational purposes only. Always seek professional advice before making any decisions.

We use third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by these companies, click here.

This page was updated on Nov 2009 and is Copyright © 2003 by Global Com Consulting Inc.

blog stats