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How We Use Energy: Then And Now

Filed by KOSU News in Business.
April 3, 2013

Manufacturing in the U.S. still uses the most energy. But its share has been decreasing. That’s partly because we’ve moved from energy-intensive manufacturing to a more service-based economy. And also partly because of a slowing population growth and improving energy efficiency.

And while homes have become more energy efficient, they’re on average about 30 percent larger. Which means overall, the energy use in homes is about the same. (Economists call this the rebound effect — some of the energy savings from more efficiency gets wiped out by more use.)

The rebound effect is also apparent in the transportation sector. Since 1961, more people have cars or trucks, and people are driving more. Regulations requiring cars and trucks to become more energy efficient are trying to curb fuel use. The U.S. Energy Information Administration says these regulations (and the high the price for gas and lower incomes due to the recession) may have slowed the rise in demand for fuel for transportation. Still, the growth continues.

Here’s where that energy came from:

In 1961, the largest portion of our energy (including the energy that used to generate electricity) comes from crude oil. That’s still true today. But the technological growth of renewable energy and the rise of electricity from nuclear power means that crude oil’s portion is shrinking. [Copyright 2013 NPR]

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