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1. Only 10% of energy in a light bulb is used to create light. 90% of a light bulb’s energy creates heat. Compact fluorescent light bulbs (CFLs), on the other hand, use about 80% less electricity than conventional bulbs and last up to 12 times as long.

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2. Approximately 30% of energy used in buildings is used inefficiently or unnecessarily.

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3. At any one time in most households an average of 8 appliances are left on stand-by. (Stand-by is an appliance’s “off” setting, but the appliance continues to use about 85% of the energy it uses while on—often so that it can listen for signals from remote controls)

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4. Enough sunlight reaches the earth’s surface each minute to satisfy the world’s energy demands—for an entire year.

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5. Heating and cooling account for about 56% of the energy used in a typical home.

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6. Gas doesn’t naturally have a smell.

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7. 83% of the world’s air pollution comes from the production and use of electricity.

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8. Wind energy contributes just over 1% of world-wide electricity use. And for Demark, it accounts for approximately 20% of its total electricity production.

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9. An energy-smart clothes washer can save more water in one year than one person drinks in an entire lifetime!

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10. Every time you open the refrigerator door, up to 30 percent of the cold air can escape.

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Sources:

Royston, Angela. 2009. Sustainable Energy. Mankato, MN: Arcturus Publishing Limited.

Sherwin, Elton B. 2010. Addiction to Energy: A Venture Capitalist’s Perspective on How to Save Our Economy and Our Climate. Knoxville, TN: Energy House Publishing.

Morris, Neil. 2010. The Energy Mix. Mankato, MN: Smart Apple Media.

Energy 101

Alliant Energy Kids