Source: U.S. Energy Information Administration, Annual Energy Outlook 2015 (interactive table viewer)
U.S.
energy consumption has slowed recently and is not anticipated to return
to growth levels seen in the second half of the 20th century. EIA's
Reference case projections in the Annual Energy Outlook 2015
(AEO2015) show that domestic consumption is expected to grow at a
modest 0.3% per year through 2040, less than half the rate of population
growth. Energy used in homes is essentially flat, and transportation
consumption will decline slightly, meaning that energy consumption
growth will be concentrated in U.S. businesses and industries.
Near-zero
growth in energy consumption is a recent phenomenon, and there is
substantial uncertainty about the main drivers of consumption as the
United States continues to recover from the latest economic recession
and resumes more normal economic growth. EIA's analysis in the AEO2015
includes several cases with various assumptions about macroeconomic
growth, world oil prices, and domestic energy resource availability.
Increases
in energy consumption are mostly related to economic activity, and U.S.
industrial and commercial enterprises are projected to increase output
more rapidly than countervailing influences from improved technologies.
Existing policies also can moderate energy use. Energy intensity,
measured as the amount of energy per unit of output, does continue to
decline during the projection period. Nonetheless, industrial energy
consumption still rises by 0.7% per year through 2040, while commercial
consumption rises 0.5% per year in the AEO2015 Reference case.
Declines
in energy consumption tend to result from the adoption of energy
efficient technologies (often affected by policy measures) and larger,
structural changes in the economy. Although the residential and
transportation sectors are different in the ways they consume energy,
energy consumption in these sectors through 2040 is projected to remain
below historical levels.
Most of the major energy-consuming
equipment and appliances in U.S. homes and apartments have been covered
by federal energy efficiency standards since the mid-1990s. As this
equipment can often last for decades, the United States is only now
reaching a period in which most appliances were manufactured and
installed in an era when these efficiency standards were in place.
Residential consumption has also declined as the population has shifted
toward warmer climates, reducing the need for space heating. The
corresponding increase in energy for space cooling is much less than
energy for heating, thus reducing overall residential energy
consumption.
The transportation sector has also seen consumption
declines from energy efficiency and structural effects, with policy
playing a large supporting role. Corporate average fuel economy
standards for light-duty vehicles have been in place since the late
1970s, and similar standards for heavy-duty vehicles and trucks have
been in place since the early 1980s. These standards, combined with less
travel in response to technological and social factors, have reduced
transportation energy consumption in recent years and are expected to
continue holding transportation consumption nearly flat in the coming
decades. Gasoline consumption, which accounted for 58% of transportation
consumption in 2013, falls 21% by 2040 to 47% of total transportation
energy consumption, while other transportation fuels such as diesel and
jet fuel increase slightly.
http://theenergycollective.com/todayinenergy/2222736/us-energy-demand-slows-except-industrial-commercial-sectors
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