America is self-sufficient in "coal. Indeed, it has several hundred years' supply of it. The United States trend in coal use has been rising from 1950 through 2007, when coal production and consumption more than doubled. The population of the US has almost doubled in this time period as well, while the per capita energy use has been declining since 1978.
Most electricity (52% in 2000) in the country is generated from "coal-fired power plants: in 2006, more than 90% of coal consumed was used to generate electricity. In 1950, about 19% percent of the coal consumed was for electricity generation.
In terms of the production of energy from domestic sources, from 1885 through 1951, coal was the leading source of energy in the United States. Crude oil and natural gas then vied for that role until 1982. Coal regained the position of the top domestic resource that year and again in 1984, and has retained it since. The US burns 1 billion tons of coal every year.
Concern for "climate change has led to a call for a "moratorium on all coal consumption, unless carbon capture is utilized. Coal is the largest potential source of CO2 emissions.
"Integrated Gasification Combined Cycle (IGCC) is the cleanest currently operational coal-fired electricity generation technology. "FutureGen is an experimental U.S. research project to investigate the possibility of sequestering IGCC CO2 emissions underground.
"Natural gas production and consumption quadrupled between 1950 and 1970 to 20×1012 cu ft (570 km3), but declined steadily to stabilize in 1986. Since then, the United States imports a rising share of its gas. In 2008 consumption of natural gas stood at 23.2×1012 cu ft (660 km3), while domestic production was at 20.6×1012 cu ft (580 km3). Approximately 3.0×1012 cu ft (85 km3) were imported, mainly by "pipelines from Canada, which accounted for 90% of foreign supplies, while the remainder is delivered by "liquefied natural gas (LNG) "tankers carrying gas from five different countries.
The largest gas producing states in 2007 were Texas (30%), Wyoming (10%), Oklahoma (9%) and New Mexico (8%), while 14% of the country's production came from the federal offshore lands in the Gulf of Mexico. Recent development in "hydraulic fracturing and "horizontal drilling have increased interest for "shale gas across the United States in recent years. Leading fields are the "Barnett Shale in Texas and the "Antrim Shale in Michigan. Natural gas reserves in the United States were 35% higher in 2008 than two years earlier largely due to shale gas discoveries.
The United States is the world's largest supplier of commercial nuclear power. As of 2010, the demand for nuclear power is softening in America, and some companies have withdrawn their applications for licenses to build. Ground has been broken on two new nuclear plants with a total of four reactors. The only reactor currently under construction in America, at "Watts Bar, "Tennessee, was begun in 1973 and may be completed in 2012. Of the 104 reactors now operating in the U.S., ground was broken on all of them in 1974 or earlier. In September 2010, Matthew Wald from the "New York Times reported that "the "nuclear renaissance is looking small and slow at the moment".
In August 2011, John Rowe, head of "Exelon, America's largest nuclear utility, said that this was not the time to build new nuclear plants, not because of political opposition or the threat of cost overruns, but because of the low price of natural gas. "Shale [gas]", said he, "is good for the country, bad for new nuclear development".
Following the "2011 Japanese nuclear accidents, the U.S. Nuclear Regulatory Commission has announced it will launch a comprehensive safety review of the 104 nuclear power reactors across the United States, at the request of President Obama. The Obama administration "continues to support the expansion of nuclear power in the United States, despite the crisis in Japan". Following the Japanese nuclear emergency, public support for building nuclear power plants in the U.S. dropped to 43%, slightly lower than it was immediately after the "Three Mile Island accident in 1979, according to a CBS News poll.
In his 2012 state-of-the-union address, Barack Obama said that America needs "an all-out, all-of-the-above strategy that develops every available source of American energy." President Obama boasted about a Michigan "wind turbine factory, America's healthy supplies of natural gas and widespread oil exploration. He urged Congress to pass tax incentives for "energy efficiency, "clean energy, and an end to oil-company subsidies, but made no mention of nuclear power.
In 2013, four aging reactors in the USA were permanently closed before their licenses expired because of high maintenance and repair costs at a time when "natural gas prices have fallen: "San Onofre 2 and 3 in California, "Crystal River 3 in Florida, and "Kewaunee in Wisconsin. The state of Vermont is trying to close "Vermont Yankee, in Vernon. New York State is seeking to close "Indian Point in Buchanan, 30 miles from New York City. Loss of nuclear generating capacity is expected to be offset by the five new nuclear reactors currently under construction, with a proposed combined capacity of more than 5,000 MW.
Renewable energy in the United States accounted for 12.9 percent of the domestically produced electricity in 2013. "Renewable energy reached a major milestone in the first quarter of 2011, when it contributed 11.7 percent of total U.S. energy production (2.245 quadrillion BTUs of energy), surpassing energy production from nuclear power (2.125 quadrillion BTUs). 2011 was the first year since 1997 that renewables exceeded nuclear in US total energy production.
"Hydroelectric power is currently the largest producer of renewable power in the U.S. It produced around 6.2% of the nation's total electricity in 2010 which was 60.2% of the total renewable power in the U.S. The United States is the "fourth largest producer of hydroelectricity in the world after China, Canada and Brazil. The "Grand Coulee Dam is the 5th "largest hydroelectric power station in the world.
"U.S. wind power installed capacity now exceeds 65,000MW. For calendar year 2014, the electricity produced from "wind power in the United States amounted to 181.79 "terawatt-hours, or 4.44% of all generated electrical energy. "Texas is firmly established as the leader in wind power development, followed by Iowa and California.
Several large "solar thermal power stations have also been built. The largest of these solar thermal power stations is the "SEGS group of plants in the "Mojave Desert with a total generating capacity of 354 MW, making the system the largest solar plant of any kind in the world. As of 2015, the largest "photovoltaic (PV) power plant in North America is "Solar Star, a 579 "megawatt "photovoltaic power station near "Rosamond, California. "The Geysers in Northern California is the largest complex of geothermal energy production in the world.
With 2,957 MW of installed "geothermal capacity, the United States remains the world leader with 30% of the online capacity total. As of early 2009, 120 new projects are underway. When developed, these projects could potentially supply up to 3,979 MW of power, meeting the needs of about 4 million homes. At this rate of development, geothermal production in the United States could exceed 15,000 MW by 2025.
The development of "renewable energy and energy efficiency marks "a new era of energy exploration" in the "United States, according to President "Barack Obama. In a "joint address to the Congress on February 24, 2009, President Obama called for doubling renewable energy within the next three years. In his 2012 "State of the Union address, President Barack Obama restated his commitment to renewable energy and mentioned the long-standing Interior Department commitment to permit 10,000 MW of renewable energy projects on public land in 2012.
President "Barack Obama's "American Recovery and Reinvestment Act of 2009 included more than $70 billion in direct spending and tax credits for "clean energy and associated transportation programs. This policy-stimulus combination represents the largest federal commitment in U.S. history for "renewable energy, advanced transportation, and "energy conservation initiatives. As a result of these new initiatives, many more utilities are expected to strengthen their clean energy programs. In February 2011, the "U.S. Department of Energy launched its "SunShot initiative, a collaborative national effort to cut the total cost of photovoltaic solar energy systems by 75% by 2020. Reaching this goal would make unsubsidized solar energy cost-competitive with other forms of electricity and get "grid parity .
In recent years there has been an increased interest in "biofuels – "bioethanol and "biodiesel – derived from common agricultural staples or waste. Increased domestic production of these fuels could reduce US expenditure on foreign oil and improve "energy security if methods of producing and transporting the fuels do not involve heavy inputs of fossil fuels, as current agriculture does.
Most cars on the road today in the U.S. can run on blends of up to 10% "ethanol, and motor vehicle manufacturers already produce vehicles designed to run on much higher ethanol blends. Portland, Oregon, recently became the first city in the United States to require all gasoline sold within city limits to contain at least 10% ethanol. "Ford, "Daimler AG, and "GM are among the automobile companies that sell "flexible-fuel" cars, trucks, and minivans that can use gasoline and ethanol blends ranging from pure gasoline up to 85% ethanol ("E85). By mid-2006, there were approximately 6 million E85-compatible vehicles on U.S. roads.
The Renewable Fuels Association counts 113 U.S. ethanol distilleries in operation and another 78 under construction, with capacity to produce 11.8 billion gallons within the next few years. The "Energy Information Administration (EIA) predicts in its Annual Energy Outlook 2007 that ethanol consumption will reach 11.2 billion US gallons (42,000,000 m3) by 2012, outstripping the 7.5 billion US gallons (28,000,000 m3) required in the Renewable Fuel Standard that was enacted as part of the Energy Policy Act of 2005.
Expanding "ethanol fuel (and biodiesel) industries provide jobs in plant construction, operations, and maintenance, mostly in rural communities. According to the "Renewable Fuels Association, the ethanol industry created almost 154,000 U.S. jobs in 2005 alone, boosting household income by $5.7 billion. It also contributed about $3.5 billion in tax revenues at the local, state, and federal levels.
In recent years, there has been criticism about the production of "ethanol fuel from food crops. However, "second generation biofuels are now being produced from a much broader range of feedstocks including the cellulose in dedicated "energy crops (perennial grasses such as "switchgrass and "Miscanthus giganteus), forestry materials, the co-products from food production, and domestic vegetable waste. Produced responsibly they are sustainable energy sources that need not divert any land from growing food, nor damage the environment.
There are many different types of "energy efficiency innovation, including efficient water heaters; improved refrigerators and freezers; advanced building control technologies and advances in heating, ventilation, and cooling (HVAC); smart windows that adapt to maintain a comfortable interior environment; new building codes to reduce needless energy use; and compact fluorescent lights. Improvements in buildings alone, where over sixty percent of all energy is used, can save tens of billions of dollars per year.
Several states, including California, New York, Rhode Island, and Wisconsin, have consistently deployed energy efficiency innovations. Their state planning officials, citizens, and industry leaders, have found these very cost-effective, often providing greater service at lower personal and social cost than simply adding more fossil-fuel based supply. This is the case for several reasons. Energy efficient technologies often represent upgrades in service through superior performance (e.g. higher quality lighting, heating and cooling with greater controls, or improved reliability of service through greater ability of utilities to respond to time of peak demand). So these innovations can provide a better, less expensive service.
A wide range of energy efficient technologies have ancillary benefits in improved quality of life, such as advanced windows that not only save on heating and cooling expenses, but also make the workplace or home more comfortable. Another example is more efficient vehicles, which not only save immediately on fuel purchases, but also emit fewer pollutants, improving health and saving on medical costs to the individual and to society.
In 1994, "Amory Lovins developed the design concept of the "Hypercar. This vehicle would have ultra-light construction with an "aerodynamic body using advanced "composite materials, low-"drag design, and "hybrid drive. Designers of the Hypercar claim it would achieve a three- to five-fold improvement in "fuel economy, equal or better performance, safety, amenity, and affordability, compared with today's "cars. Lovins says the commercialisation of the Hypercar began in 2014, with the production of the all-carbon electric "BMW i3 family and the 313 miles per gallon "Volkswagen XL1.
Energy budget, initiatives and incentives
An incentive resulting from US energy policy is a factor that provides motive for a specific course of action regarding the use of energy. In the U.S. most energy policy incentives take the form of financial incentives. Examples of these include tax breaks, tax reductions, tax exemptions, rebates, loans and specific funding. Throughout US history there have been many incentives created through U.S. energy policy.
Most recently the "Energy Policy Act of 2005, "Energy Independence and Security Act of 2007, and "Emergency Economic Stabilization Act of 2008, each promote various energy efficiency improvements and encourage development of specific energy sources. U.S. Energy policy incentives can serve as a strategic manner to develop certain industries that plan to reduce America's dependence on foreign petroleum products and create jobs and industries that boost the national economy. The ability to do this depends upon which industries and products the government chooses to subsidize.
The 2012 budget that "President Obama submitted to Congress calls for a 70 percent increase over the 2011 allocation for federal research and development activities related to renewable energy. The "Office of Science in the Department of Energy would receive $2.0 billion for basic energy sciences to discover new ways to produce, store and use energy. Included in that amount are allocations of $457 million for solar energy; $341 million for biofuels and biomass R&D, including a new reverse auction to promote advanced biofuels; and more than doubling investment in geothermal energy to $102 million. The budget includes funding to accelerate the deployment of new models of energy research pioneered in the last several years, including $550 million for the "Advanced Research Projects Agency–Energy, a program that supports breakthrough ideas.
Public investment can enable the development of infrastructure projects through the use of public funds, "grants, "loans or other financing options. These funds provide a means for allocating the "capital necessary for the development of renewable energy technologies.
Federal "tax incentives can be designed to accelerate market adoption, create jobs, encourage investment in a public good (reduced pollution) or encourage investment in renewable technology research and development. The Production Tax Credit (PTC) reduces the federal income taxes of qualified tax-paying owners of renewable energy projects based on the electrical output (measured in kWh) of grid-connected renewable energy facilities. The Investment Tax Credit (ITC) reduces federal income taxes for qualified tax-paying owners based on dollars of capital investment in renewable energy projects. The Advanced Energy Manufacturing Tax Credit (MTC) awards tax credits to new, expanded, or re-equipped domestic manufacturing facilities that support clean energy development.
The Department of Energy's "Loan Guarantee Program, established by the "Energy Policy Act of 2005 and enhanced by the "American Recovery and Reinvestment Act of 2009, attempts to pave the way for investor support of clean energy projects by providing a guarantee of financing up to 80% of the project cost. The program is scheduled to end on September 30, 2011, unless Congress passes further legislation.
Renewable portfolio standard
A "Renewable Portfolio Standard (RPS) is a mandate that requires electricity providers to supply to their customers a minimum amount of power from renewable sources, usually as a percentage of total energy use. As of June 2010, such standards have been enacted in 31 U.S. states and the District of Columbia. For example, Governor "Jerry Brown signed legislation requiring California's utilities to get 33 percent of their electricity from "renewable energy sources by the end of 2020. Congress has considered a national RPS since 1997: the Senate has passed legislation three times, and the House once. As of April 2011, both houses have not acted in unison to pass legislation.
In the United States "biofuel subsidies have been justified on the following grounds: "energy independence, reduction in "greenhouse gas emissions, improvements in "rural development related to biofuel plants and farm income support. Several economists from "Iowa State University found "there is no evidence to disprove that the primary objective of biofuel policy is to support farm income."
Consumers who purchase hybrid vehicles are eligible for a tax credit that depends upon the type of vehicle and the difference in fuel economy in comparison to vehicles of similar weights. These credits range from several hundred dollars to a few thousand dollars. Homeowners can receive a tax credit up to $500 for energy efficient products like insulation, windows, doors, as well as heating and cooling equipment. Homeowners who install solar electric systems can receive a 30% tax credit and homeowners who install small wind systems can receive a tax credit up to $4000. "Geothermal heat pumps also qualify for tax credits up to $2,000.
Recent energy policy incentives have provided, among other things, billions of dollars in tax reductions for nuclear power, fossil fuel production, "clean coal technologies,renewable electricity production, and conservation and efficiency improvements.
Ceasing to issue new leases for fossil fuel extraction on federal lands and waters, and avoiding renewals of existing leases for resources that are not yet producing would reduce global CO2 emissions by 100 million tonnes per year by 2030, and by greater amounts thereafter.
Long distance "electric power transmission results in energy loss, through "electrical resistance, "heat generation, "electromagnetic induction and less-than-perfect "electrical insulation. In 1995, these losses were estimated at 7.2%. Energy generation and distribution can be more efficient the closer it is to the point of use, if conducted in a high-efficiency generator, such as a "CHP. In the generation and delivery of electrical power, system losses along the delivery chain are pronounced. Of five units of energy going into most large power plants, only about one unit of energy is delivered to the consumer in a usable form.
A similar situation exists in gas transport, where compressor stations along pipelines use energy to keep the gas moving, or where gas liquefaction/cooling/regasification in the liquiefied natural gas supply chain uses a substantial amount of energy, even though the scale of the loss is not as pronounced as it is in electricity.
"Distributed generation is a means of reducing total and transmission losses.
Electricity production by source
|Source||2012 production (TWh)||Percentage of Total|
Electricity consumption by sector
|Sector||2012 consumption (TWh)||Percentage of total|
- production: 9.688-million-barrels-per-day (1,540,300 m3/d) (2010 est.)
- consumption: 19.15-million-barrels-per-day (3,045,000 m3/d) (2010 est.)
Heat engines are only 20% efficient at converting oil into work. Electric transmission (production to consumer) loses over 23% of the energy due to generation, transmission, and distribution.
Carbon dioxide emissions
The "EPA has the authority to regulate greenhouse gas emissions, under the "Clean Air Act, and is one of the agency's seven priorities.
|US carbon dioxide emissions (millions of "metric tons of CO2)|
|Year||CO2||Change from 1990|
The U.S. results from the 1st Annual World Environment Review, published on June 5, 2007 revealed that:
- 74% are concerned about climate change.
- 80% think their Government should do more to tackle global warming.
- 84% think that the US is too dependent on fossil fuels.
- 72% think that the US is too reliant on foreign oil.
- 79% think that the US Government should do more to increase the number of hybrid cars that are sold.
- 67% think that the US Government should allow more off shore drilling.
The public is also quite clear on its priorities when it comes to promoting energy conservation versus increasing the supply of oil, coal, and natural gas. When asked which of these should be the higher priority, the public chooses energy conservation by a very wide 68 percent-to-21 percent margin. The public also predominantly believes that the need to cut down on energy consumption and protect the environment means increased energy efficiency should be mandated for certain products. Ninety-two percent of Americans now support such requirements.
However, when energy policy and climate change are compared to other issues, they are rated extremely low in terms of importance. A Pew Research Center poll on public priorities for 2011 found that global warming ranked last of twenty-two possible policy priorities. The same survey in 2012 found similar results.
Gallup found that from 2009 through the latest poll in March 2013, public opinion has been nearly evenly split on whether to give priority to the environment or to developing energy sources such as oil, gas, and coal. This represents a shift from poll results from 2001 through 2008, when clear pluralities of Americans wanted environmental concerns to take priority over developing fossil fuel resources. However, public opinion still heavily favors an emphasis on wind and solar energy (59 percent) over fossil fuels (31 percent).
General legislative policy, legislation and plans
The current head of the "U.S. Department of Energy under the Obama administration is "Dr. Ernest Moniz, who succeeded "Dr. Steven Chu in May 2013.
As of September 2012, "The mission of the Energy Department is to ensure America's security and prosperity by addressing its energy, environmental and nuclear challenges through transformative science and technology solutions."
- Catalyze the timely, material, and efficient transformation of the nation's energy system and secure U.S. leadership in clean energy technologies.
- Maintain a vibrant U.S. effort in science and engineering as a cornerstone of our economic prosperity with clear leadership in strategic areas.
- Enhance nuclear security through defense, nonproliferation, and environmental efforts.
- Establish an operational and adaptable framework that combines the best wisdom of all Department stakeholders to maximize mission success.
In December 2009, the "United States Patent and Trademark Office announced the Green Patent Pilot Program. The program was initiated to accelerate the examination of patent applications relating to certain green technologies, including the energy sector. The pilot program was initially designed to accommodate 3,000 applications related to certain green technology categories, and the program was originally set to expire on December 8, 2010. In May, 2010, the USPTO announced that it would expand the pilot program.
Greenhouse gas emissions
Although exceeded by "China since 2007, the United States has historically been the world's largest producer of greenhouse gases. Some states are much more prolific polluters than others. The state of "Texas produces approximately 1.5 trillion pounds of "carbon dioxide yearly, more than every nation in the world except five outside of the United States: China, Russia, Japan, India, and Germany.
Despite signing the "Kyoto Protocol, the United States has neither ratified nor withdrawn from it. In the absence of ratification it remains non-binding on the US.
The Obama Administration has promised to take specific action towards "mitigation of climate change. In addition, at state and local levels, there are currently a number of initiatives. As of March 11, 2007, mayors of 418 US cities in 50 states have endorsed the Kyoto protocol, after Mayor "Greg Nickels of "Seattle started a nationwide effort to get cities to agree to the protocol. As of January 18, 2007, eight Northeastern US states are involved in the "Regional Greenhouse Gas Initiative (RGGI), a state level emissions capping and trading program.
On August 31, 2006, the "California Legislature reached an agreement with Governor "Arnold Schwarzenegger to reduce the state's greenhouse-gas emissions, which rank at 12th-largest carbon emitter in the world, by 25 percent by the year 2020. This resulted in the "Global Warming Solutions Act which effectively puts California in line with the Kyoto limitations, but at a date later than the 2008–2012 Kyoto commitment period.
In the non-binding '"Washington Declaration' agreed on February 16, 2007, the United States, together with Presidents or Prime Ministers from "Canada, "France, "Germany, "Italy, "Japan, "Russia, "United Kingdom, "Brazil, "China, "India, "Mexico and "South Africa agreed in principle on the outline of a successor to the Kyoto Protocol. They envisage a global cap-and-trade system that would apply to both industrialized nations and "developing countries, and hoped that this would be in place by 2009.
Chemistry Professor Nathan Lewis at "Caltech estimates that to keep atmospheric carbon levels below 750 "ppm, a level at which serious climate change would occur, by the year 2050, the United States would need to generate twice as much energy from renewable sources as is generated by all power sources combined today. However, current research indicates that even carbon dioxide concentrations in excess of 450 ppm would result in irreversible global climate change.
The book, Carbon-Free and Nuclear-Free, A Roadmap for U.S. Energy Policy, by "Arjun Makhijani, argues that in order to meet goals of limiting global warming to 2 °C, the world will need to reduce CO2 emissions by 85% and the U.S. will need to reduce emissions by 95%, which can be extended to within a few percent plus or minus of carbon free with little additional change. The book calls for "phasing out use of oil, natural gas, and coal which does not use carbon sequestration by the year 2050. Effective delivered energy is projected to increase from about 75 Quadrillion Btu in 2005 to about 125 Quadrillion in 2050, but due to efficiency increases, the actual energy input is projected to increase from about 99 Quadrillion Btu in 2005 to about 103 Quadrillion in 2010 and then to decrease to about 77 Quadrillion in 2050. Petroleum use is projected to increase until 2010 and then linearly decrease to zero by 2050. The roadmap calls for nuclear power to decrease to zero at the same time, with the reduction also beginning in 2010.
In his book "Hell and High Water, author "Joseph Romm calls for the rapid deployment of existing technologies to decrease carbon emissions. In a follow-up article in "Nature.com in June 2008, he argues that "If we are to have confidence in our ability to stabilize carbon dioxide levels below 450 p.p.m. emissions must average less than [5 billion metric tons of carbon] per year over the century. This means accelerating the deployment of the 11 wedges so they begin to take effect in 2015 and are completely operational in much less time than originally modelled by Socolow and Pacala."
In 2012, the "National Renewable Energy Laboratory assessed the technical potential for renewable electricity for each of the 50 states, and concluded that each state has technical potential for renewable electricity, mostly from "solar power and "wind power, greater than its current electricity consumption. The report cautions: "Note that as a technical potential, rather than economic or market potential, these estimates do not consider availability of transmission infrastructure, costs, reliability or time-of-dispatch, current or future electricity loads, or relevant policies."
- "United States Hydrogen Policy
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