Uses of Solar Energy

Solar energy is a combination of the hours of sunlight you can expect at your site and the strength from the sunlight you can expect. This varies depending on the time of year and the position of the earth relative to the sun.

This combination of hours of sunlight and strength the solar energy is called insolation, and the results can be expressed as an average irradiance as watts per square meter (W/m2), or – more usefully for us – kilo-watt hours per square metre spread over the period of a day (k Wh/m2/day). One square metre is equal to 9.9 square feet.

Why is this so useful?

Solar electric panels will quote the expected number of watts of power they can generate. This number is typically based on a solar irradiance of 1,000 watts per square metre.

A solar irradiance of 1,000 watts per square metre is what you could expect to receive at solar noon in the middle of summer. It is not an average reading that you could expect to achieve on a daily basis.

Once you know a solar irradiance, quoted as a daily average (i.e. the number of kilo-watts per square metre per day), you can multiply this figure by the wattage of the solar panel to give you an idea of the daily amount of energy you can expect your solar panel to provide for you.

Look into the various benefits home solar power systems can offer your family or simply learn how to build a solar panel today and save over 80% of your electrical bills.

Useful information solar panel:
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Useful information home solar power systems:
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Learn how to build a solar panel:
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