Showing posts with label alternate energy. Show all posts
Showing posts with label alternate energy. Show all posts

5.19.2010

Paper: Thirst for Oil, Feet of Clay


External threats, oddly enough, have several attractive characteristics for nation-states. In particular, external threats allow nation-states to mobilize easily at the sub-state level. During the Cold War, the United States faced an existential crisis from the threat posed by the Soviet Union. In the twenty years since the close of the Cold War, however, the United States has yet to face an existential external threat, rather, it faces a larger amount of insidious sub-state-level problems, one of which is the problem of energy consumption.

Theoretically, there is nothing wrong with the high level of energy consumption enjoyed by the citizens of the United States. If humanity possessed workable nuclear fusion reactors or some other MacGuffinish limitless clean energy source, then the need to conserve energy would vanish. However, with currently implemented technology, the world’s energy supply has hard limits. Complicating matters, the level of energy consumption serves as a rough indicator of the standard of living of a country, and if we go by the level of energy consumption, then the citizens of the United States are very prosperous indeed. Of course, the correlation between high energy consumption and high standard of living is by no means direct: the law of decreasing returns holds true for energy consumption just as it does for most other economic processes. To give a simple example, if one were to base standard of living strictly on the amount of energy used, then a worker who drives 30 minutes per day to work would be considered more prosperous than a worker who rides a bicycle 30 minutes per day to work; however, other factors beyond simple energy consumption affect the overall calculation of the well-being of the two commuters. Moreover, ancillary problems produced by high levels of energy consumption in the United States cause negative repercussions through the international system. Thus the United States must face the problems of how to eliminate or deal with these negative effects.

The main problems stemming from the US’ energy consumption can be divided into problems of energy sources and those of energy use. The problem of energy sources is a complex one, which can be be thought of using the different levels of analysis of the international system. At the systemic level, the current reliance of the world upon oil produced by various petro-states promotes an international system which causes strife in the Middle East, causes competition between states for hydrocarbon resources, and requires a world policeman. Furthermore, if greenhouse gases are produced without containment, the effects of climate change are extremely adverse. At the state level, the United States’ high level of energy consumption links it in alliances to rentier states, compromises the US’ efforts to promote civil rights and democracy around the world, and places the US economy in danger from price shocks. The issue of consumption of energy links also to health problems in the United States, particularly in the areas of food security as well as obesity, which are both public health hazards that the United States confronts now and will continue to confront in the future.

Currently, much of the energy used by the United States comes from fossil fuel sources, reliance on which produces many consequences for the United States’ role in the international system and on its relationship with other nations. In particular, one cannot discuss international energy issues without touching on the issues of oil, the premier strategic commodity in the world today. The United States depends on oil to run its infrastructure and its armed forces. The critical nature of oil for all aspects of life in the United States and other developed nations means that areas containing oil have a huge strategic importance. The crucial nature of oil has therefore caused the United States to set aside principles of democracy and human rights promotion when it becomes necessary to deal with repressive states to acquire oil. In fact, the United States’ strategic requirement for oil means that it will never be free to follow a true Wilsonian international policy of democracy and civil rights promotion internationally. Instead, the United States has allied itself with countries such as Saudi Arabia and Egypt, carries out drone attacks in Pakistan and Afghanistan, and entangles itself in oil geopolitics throughout the Middle East, Latin America, and the former Soviet Union. Additionally, the fact that oil must be shipped around the world means that the United States must maintain a network of bases around the world to house ships, planes, and troops responsible for the safety of oil shipments and oil production. Moreover, another factor supporting the United States’ efforts around the world is a network of extraordinary renditioning of individuals who are deemed hostile to the United States, a system which has questionable legality and violates the ideals of liberty and freedom that the founders of the United States held. While a significant portion of United States citizens would most likely wish to end extraordinary renditioning if made aware of it, the fact if its invisibility during normal daily life means that individuals generally do not feel the necessity for its elimination. In fact, sub-state-level factors such as energy consumption and energy demand are at the root of much of the United States’ forward military presence around the world.

A second issue brought on by the United States’ high level of energy use is the emission of anthropogenic climate change gases. Currently, the world’s atmosphere contains over 450 parts per million of carbon dioxide. Higher levels of carbon dioxide in the atmosphere can lead to warming of the global climate, which leads to many dangers to the people of the United States, including higher levels of intense weather, desertification, Klassifikation of oceans, and rising ocean levels. All of these environmental problems have strong potential to create difficulties for food production, as well as having the ability to disrupt life when natural disasters occur.
A final issue that pertains to the United States’ high level of energy use is the health risks which are caused by a sedentary lifestyle which automobile use and low food prices which cheap energy entails. A sedentary lifestyle often leads to obesity, which in turn leads to both health risks and health care costs.

Naturally, there are possibilities for other mitigating behaviors which would eliminate all or some of the adverse effects caused by the US’ high levels of energy consumption. For example, the United States can use its armies to safeguard energy, and research better technologies so that our forces abroad will not be harmed by hostile actors. The United States can also research systems that will allow carbon dioxide to be buried in the ground, thereby lowering the amount of greenhouse gases in the air. Finally, the government can implement subsidies for individuals who receive good health checks at the doctors’ office, thereby countering the effects of sedentary life on public health in the United States. However, a disconnect separates these ideas from practical implementation. Hence, while the United States may wish, on the one hand, to find methods to mitigate the effects brought on by its high overconsumption of energy, it may also wish to find ways to address the root cause of that high energy use, which is fundamentally an issue of price: current energy prices in the United States and in the rest of the world do not fully reflect the externality cost of the emissions that they produce. Until the present, the United States has used international action to preserve this system; however, it may be more efficient in terms of lives saved and economics to examine the alternative of lowering energy use.

The United States has three main mechanisms that it can use to lower energy use: more efficiency and higher prices. We can think of energy-use efficiency measures in several different ways. First of all, the United States has energy standards, which can be raised system-wide for various energy-using systems in order to decrease energy use. Chief among these standards are CAFE standards, which regulate various firms’ automobile fleet fuel efficiency. Secondly, systems configuration can be adjusted in order to decrease energy use, either through adjustment of zoning or through improving public transportation. Examples of reconfiguration include automobile commuter lanes and mixed-use zoning. Overall, efficiency has the potential to drop energy use by a significant amount. Alternately, the United States can mobilize markets to decrease national energy use, either by placing a tax on goods or on oil. In essence, such financial incentives enlist the help of the market to decrease energy use. However, such measures also can have strong inflationary consequences,which were demonstrated during the oil crises of the 1970s. Due to the inflationary effects of higher energy prices, governments often avoid increasing such prices if the governments lack a framework for translating higher energy prices into economic growth. One method to prevent such shocks that is often discussed is a global market for carbon, which would create a worldwide price for emissions, thereby capping energy carbon emissions at a certain level. Such a mechanism would allow for a more gradual rise in prices, thereby averting inflationary shocks to the United States’ economy.

One other question worth asking is the question of how the current need to decrease energy consumption relates to the implementation of high modernistic ideas. Generally, high modernist thought takes technological progress as a panacea. However, the magic bullet for the world’s energy problems has proved elusive. The threats caused by such problems, on the other hand, are concrete physical reality, so the United States should use methods that are currently available to overcome energy threats. A brief list of such methods includes better efficiency standards for buildings and vehicles, higher coal and oil prices, substitution of carbon-neutral energy sources for oil and coal, and a readjustment of infrastructure to phase out reliance on coal and oil in all phases of life as well as the gradual replacement of the gasoline-powered internal combustion engine with cleaner technology.

Much of the burden for the implementation of measures to decrease energy consumption in the United States lies on the government. The task which the government faces is how to convince voters that less energy consumption actually represents a better deal for the United States as a whole. Currently, the United States Senate is debating an energy bill that would take a decisive first step towards dealing with the problem. If and when the bill passes, it would begin to chip away at the problem of the United States’ high domestic energy consumption, and the United States would thereby gain greater flexibility in promotion of democracy and freedom around the world.

11.16.2009

Paper: Short Thinking Piece on June 09 Discover Article


One major advantage of the energy sources that are currently prevalently used in the world is their inert nature. We can store coal and biomass in open room-temperature air, or gas and petroleum products in tanks. Even plutonium, while radioactive, can be stored in special containers. However, it is quite obvious that mankind has not yet perfected techniques for storing energy from the sun or the wind. The June 2009 Discover Magazine article ‘Lightning in a Bottle’ examines several new energy storage techniques, some of which may help to mitigate the storage problems inherent in solar and wind energy generation.

The new technologies take varying approaches:

One type of technology uses energy to pump compressed air into a sealed cavern. The compressed air can be released to turn a turbine at will, thereby generating power; however, dependence on outside power in order to pump the turbine system decreases the overall efficiency of this system. Furthermore, the compressed air system has the inherent problem of leakage, as well as the perquisite of an extremely large cavernous space to store compressed air in. Currently both of the two examples of the compressed-air energy storage utilize rare natural salt dome formations. Developers have proposed that other large underground spaces, including an abandoned limestone mine and an empty aquifer, could be used. Also Georgianne Peek, an advocate of sealed-air energy storage, speculated that oil wells and natural gas reservoirs could store compressed air as well, the article said. One might also wonder if other rock quarries, for example granite or marble quarries, could serve a similar purpose- based on simple hardness, such rock would seem to be to be less porous than limestone.

The article also looks at molten salt technology, which can be used in combination with a large solar power plant. Some questions regarding the nature of the salts occurred in my mind immediately: seeing that the salts are mixed with nitric acid, they would presumably be corrosive? Furthermore, are the salts toxic? In the article, a US Department of Energy official said that the use of molten salt-based storage technology can increase the amount of time that a plant is fully operational in a year ‘from 25 percent to up to 70 percent’, thereby nearly tripling the amount of time that such a plant would be active. Naturally the power generation system would need to rely on other power sources for the other ~30% of the time, but implementation of such storage techniques on a large scale could greatly increase the viability of solar power generation.

The article also examines sodium-sulfur batteries, which may be a good method of storing wind energy due to the relatively higher energy density and longevity of such batteries compared to traditional lead-acid batteries. Other developers are working on batteries which would use zinc bromide or vanadium oxide. Such technologies may prove extemely useful due to their relatively small size, because they could be combined with small-scale wind farms in order to increase the overall efficiency of the wind power generation. A new hydrogen ion generation system developed at MIT could prove to be the key to allowing hydrogen to perform similar energy storage functions, with the added benefit that the materials required are cheaper, the article said.

Finally, the article discusses the issues surrounding implementation of battery powered cars, including battery life range and charger infrastructure. After finishing the article, I had the further thought that one other consideration for new power sources would be benefits that could be had by implementing either a superconducting electric grid or effective measures for miniaturizing some or all of these power storage systems. Either of these two technologies would lead to great gains in efficiency of energy use due to lower transport costs. Amory Lovins of the Rocky Mountain Institute has written extensively on ‘micropower’, which uses mainly small-scale energy generation equipment. Micropower equipment would give a great amount of flexibility in energy production if it could be properly implemented and does not require government-level capital projects in order to be implemented. On the other hand, a nuanced approach involving a superconducting smart grid would also help alleviate the problem of new energy storage and transmission. Suppose a future when, through the use of computers, a utility company can track a car’s energy usage so that when it parks, through the use of computer-linked charging systems, which would refill the car’s battery while it is parked and bill the driver for the refill automatically through a debit or credit payment.