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Project Sol - Exploring the Science and Technology of Solar Energy - desert, electrons, fusion, helium, matter, neutrons, photons, pv cell

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ENERGY CONSUMPTION: How much energy did you consume today?

Night and day, we use lots of energyEvery day, every person on earth needs food to fuel his or her body. Most people also use some share of the world's energy resources—including fossil fuels, nuclear power, and renewable resources—to carry out their daily activities. How big a share of these resources an individual consumes, directly or indirectly, depends a lot on where and how that individual lives.

In the United States, each person consumes an average of 111 million BTUs (British Thermal Units) of energy per year or over 300,000 BTUs per day. That's a very big number, but what does it mean? It's enough to keep thirty seven 100-watt light bulbs burning all the time. Of course most of us don't have thirty seven light bulbs burning all the time. So where does the energy go?

NEXT: So where does the energy go?

 
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