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Books > Business & Economics > Industry & industrial studies > Energy industries & utilities
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U.S. Energy - Overview and Key Statistics (Paperback)
Loot Price: R336
Discovery Miles 3 360
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U.S. Energy - Overview and Key Statistics (Paperback)
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Loot Price R336
Discovery Miles 3 360
Expected to ship within 18 - 22 working days
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Energy supplies and prices are major economic factors in the United
States, and energy markets are volatile and unpredictable. Thus,
energy policy has been a recurring issue for Congress since the
first major crisis in the 1970s. As an aid in policy making, this
report presents a current and historical view of the supply and
consumption of various forms of energy. The historical trends show
petroleum as the major source of energy, rising from about 38% in
1950 to 45% in 1975, then declining to about 40% in response to the
energy crisis of the 1970s. Significantly, the transportation
sector continues to be almost completely dependent on petroleum,
mostly gasoline. The importance of this dependence on the volatile
world oil market was revealed over the past five years as
perceptions of impending inability of the industry to meet
increasing world demand led to three years of steady increases in
the prices of oil and gasoline. With the downturn in the world
economy and a consequent decline in consumption, prices collapsed,
but then recovered to a much higher level than in the 1990s. With
the crisis in Libya in the Spring of 2011, oil and gasoline prices
began again to approach their former peak levels. By 2012, Libyan
production had recovered, but a new crisis involving Iran further
threatened supply. Natural gas followed a long-term pattern of U.S.
consumption similar to that of oil, at a lower level. Its share of
total energy increased from about 17% in 1950 to more than 30% in
1970, then declined to about 20%. Natural gas markets are very much
more regional than the petroleum market, in which events in one
part of the world tend to influence consumption and prices
everywhere. Recent development of large deposits of shale gas in
the United States have increased the outlook for U.S. natural gas
supply and consumption in the near future. Consumption of coal in
1950 was 35% of the total, almost equal to oil, but it declined to
about 20% a decade later and has remained at about that proportion
since then. Coal currently is used almost exclusively for electric
power generation, and its contribution to increased production of
carbon dioxide has made its use controversial in light of concerns
about global climate change. Nuclear power started coming online in
significant amounts in the late 1960s. By 1975, in the midst of the
oil crisis, it was supplying 9% of total electricity generation.
However, increases in capital costs, construction delays, and
public opposition to nuclear power following the Three Mile Island
accident in 1979 curtailed expansion of the technology, and many
construction projects were cancelled. Continuation of some
construction increased the nuclear share of generation to 20% in
1990, where it remains currently. Licenses for a number of new
nuclear units have been in the works for several years, and
preliminary construction for a few units has begun, but the
economic downturn has discouraged action on new construction. The
accident at Japan's Fukushima station following the March 2011
earthquake and tsunami raised further questions about future
construction of nuclear powerplants. Construction of major
hydroelectric projects has also essentially ceased, and
hydropower's share of electricity generation has gradually
declined, from 30% in 1950 to 15% in 1975 and less than 10% in
2000. However, hydropower remains highly important on a regional
basis. Renewable energy sources (except hydropower) continue to
offer more potential than actual energy production, although fuel
ethanol has become a significant factor in transportation fuel.
Wind power has recently grown rapidly, although it still
contributes only a small share of total electricity generation.
Conservation and energy efficiency have shown significant gains
over the past three decades and offer potential to relieve some of
the dependence on oil imports.
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