Build Your Own Solar Panel System

The use of solar power drastically reduces electricity costs, and this is one of the most common reasons for choosing it. Federal and state governments offer solar incentives, which help to offset the initial expenses of a solar energy system. The 2005 Energy Policy Act provides two ways to be given a solar energy tax credit from the federal government. Solar energy rebates are also offered by more than 50% of US states.

An average of 164 watts of solar power per square meter is delivered to the Earth's crust by the sun. If we placed enough solar panels in the Sahara desert to cover just one percent of it, we could generate enough electricity to power the entire planet. This abundance of solar power means there's more than we'll ever need. But because the power sent out by the sun arrives as a mixture of light and heat, we can't use it as it is to directly power a car or a computer. This is why solar panels were invented - to convert the sun's power into a form we can use, like electricity.

Any extra electricity you create using your solar panels, if you're attached to the grid, will be paid for by the utility company. Accounting for a solar energy system's electricity production and enabling utilities to purchase excess energy from homeowners, net metering is allowed in 30 states. The most frequently used option is a single, reversible meter. As a solar energy system produces electricity, the kilowatts are used first to meet on-site energy demand. Excess electricity is then fed into the grid, turning the electric meter backwards, instead of being stored in a battery. The homeowner is credited for the extra kilowatts at the end of each metering period.

Excess electricity can be stored for use on days that are overcast. The ability to store excess electricity in batteries means you don't need to be attached to the grid even for cloudy days. In stand alone solar power systems batteries are charged with surplus electricity for night-time use. The life cycle of a battery is what determines its suitability for use with solar cells. The amount of electricity required, along with the size of the battery, will determine the number of hours energy will last during periods of no sunlight.

How is solar power produced? To produce solar power, you'll need a solar panel, which is composed of one or more solar cells. As sunlight falls onto a solar cell, the cell takes in light particles (called photons). Each photon contains power, and when soaked up, the photon releases an electron in the material of the solar cell. Electric wiring on both sides of the cell enable a flow of current as the photon is absorbed. Using this method, the solar cell produces electricity, which can be used immediately, or stored within a battery for future use.

Solar panels are made up of solar cells. An individual solar cell is not able to produce enough power for most purposes; therefore, several are joined in solar panels because of course, they create more electricity together. Solar panels are available in many types and sizes, the most typical of which produce as much as 50 W of electricity and consist of silicon solar cells. Interconnecting solar panels produce even more electricity.

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