Americans using more energy, analysis shows

Apr 02, 2014 by Anne M Stark
Rows of wind turbines line the hills east of the Livermore Lab, a sight that has become more common across the country in recent years. Wind power saw the highest energy gains from 2011 through 2013, according to the most recent U.S. energy flow charts released by the Lawrence Livermore National Laboratory. Credit: Charles McGregor/LLNL

(Phys.org) —Americans used more renewable, fossil and even nuclear energy in 2013, according to the most recent energy flow charts released by Lawrence Livermore National Laboratory.

Each year, the Laboratory releases flow charts that illustrate the nation's consumption and use of energy. Overall, Americans used 2.3 quadrillion thermal units more in 2013 than the previous year.

The Laboratory also has released a companion chart illustrating the nation's energy-related . Americans' carbon increased to 5,390 million metric tons, the first annual increase since 2010.

Wind energy continued to grow strongly, increasing 18 percent from 1.36 quadrillion BTUs, or quads, in 2012 to 1.6 quads in 2013 (a BTU or British Thermal Unit is a unit of measurement for energy; 3,400 BTU is equivalent to about 1 kilowatt-hr). New wind farms continue to come on line with bigger, more efficient turbines. Most new wind turbines can generate 2 to 2.5 megawatts of power.

Natural gas prices rose slightly in 2013, reversing some of the recent shift from coal to gas in the electricity production sector. Although this did cause emissions to increase in 2013, "the power industry is building a lot of plants," said A.J. Simon, group leader for Energy at Lawrence Livermore National Laboratory. "Gas plants are cheaper than coal plants. Natural gas is going to be a winner into the foreseeable future."

The 2013 energy flow chart released by Lawrence Livermore National Laboratory details the sources of energy production, how Americans are using energy and how much waste exists.

Overall natural gas use increased by 0.6 quads. Losses in the electricity sector were more than offset by greater gas use in the residential, commercial and industrial sectors. "2013 was a cold winter," Simon said. "We expect to see continued high gas consumption in 2014, due to another tough winter on the East Coast."

Nuclear energy was greater in 2013 than in 2012. "The use of fluctuates a little from year to year," Simon said. "It's likely that in 2013, fewer reactors were down for refueling than in previous years." However, a few of the nation's about 100 reactors have recently closed for good, such as the San Onofre Nuclear Generating Station in Pendleton, Calif.

The transportation sector is using more , specifically biomass that is converted to ethanol. "This has been going up over time," Simon said. "We're expecting the fraction of biomass in transportation to remain relatively steady."

The majority of energy use in 2013 was used for electricity generation (38.2 quads), followed by transportation, industrial, residential and commercial. Energy use in the residential, commercial transportation and industrial sectors all increased slightly.

Petroleum use increased in 2013 from the previous year. Simon estimates that, with oil prices remaining relatively constant, this is likely due to the modest economic expansion. However, "The increase isn't as sharp as it might have been because Americans are buying more efficient cars, which are slowly replacing older, less efficient automobiles.."

Rejected energy increased to 59 quads in 2013 from 58.1 in 2012, rising in proportion to the total energy consumed. "Not all of the energy that we consume is put to use," Simon explained. "Heat you feel when you put your hand on your water heater and the warm exhaust from your car's tailpipe are examples of rejected energy." Comparing energy services to rejected energy gives a rough estimate of each sector's energy efficiency.

Explore further: US carbon pollution up two percent in 2013

More information: flowcharts.llnl.gov/energy.html#2013

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aksdad
3.7 / 5 (3) Apr 03, 2014
Or, more accurately, the title could be "Americans Using Less Energy". Have a look for yourself:

https://flowchart...tml#2013

According to their analysis, we used 97.4 Quads in 2013, up from 95.1 in 2012, but still BELOW 2010 (98 Quads) and 2008 (99.2). And that's with a growing population and a growing economy. In other words, we're using energy more and more efficiently, which is in line with the long term trend.

Also, carbon dioxide emissions are still below 2008 levels and expected to decline further, partly due to a transition to natural gas power plants and partly because we use energy more efficiently with each passing year. See here:

https://flowchart...tml#2013

So, really, good news about America's decreasing carbon dioxide emissions and more efficient use of energy.
Feldagast
2 / 5 (4) Apr 03, 2014
But wait, we have to be using a lot more dirty energy otherwise they wont be able to shame the population into sacrificing for the common good. Even if we are using less we are about to face some harsh realities when they start shutting down one of our primary sources, coal. After crying about sulphur emissions for ages a lot of plants installed at huge costs scrubbers to remove pollutants only to have CO2 declared one and just have coal named overall too dirty regardless. Those plants not being converted to natural gas will be forced to close and soon the rolling blackouts will reward us all for listening to them.
Moebius
3 / 5 (2) Apr 03, 2014
Fox news is succeeding.
betterexists
1 / 5 (2) Apr 05, 2014
Now we have Volcanic Eruption in Ecuador.
There are so many Volcanoes on this Planet. They want to capture heat from everywhere.
Why Not use Volcanoes?
Why NOT shoot Appropriate objects from one end of the Volcano to reach the other end of it?
That Appropriate Object should be loaded with Energy by the time it reaches the other side.
If multiple objects are thrown constantly 24X7X365 ...We will have awful lot of energy free of cost!
Heat Energy thus obtained sure should beat the amount of energy input to shoot that object from the initial side! Robots can be used to take over the whole process.
betterexists
1 / 5 (1) Apr 06, 2014
We can use Drones to fly over Volcanoes to collect energy!
betterexists
1 / 5 (1) Apr 06, 2014
They can drag a chain of energy capturing devices over the volcano!
When there is a will, then there is a way.
Sure beats pulling fuel from beneath the oceans!

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