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Wednesday, April 16, 2008

The Peak Oil

Peak oil is the point in time when the maximum rate of global petroleum production is reached, after which the rate of production enters its terminal decline. If global consumption is not mitigated before the peak, an energy crisis may develop because the availability of conventional oil will drop and prices will rise, perhaps dramatically. M. King Hubbert first used the theory in 1956 to accurately predict that United States oil production would peak between 1965 and 1970. His model, now called Hubbert peak theory, has since been used to predict the peak petroleum production of many other countries, and has also proved useful in other limited-resource production-domains. According to the Hubbert model, the production rate of a limited resource will follow a roughly symmetrical bell-shaped curve based on the limits of exploitability and market pressures.

Timing of peak oil

M. King Hubbert initially predicted in 1974 that peak oil would occur in 1995 "if current trends continue". However, in the late 1970s and early 1980s, global oil consumption actually dropped (due to the shift to energy-efficient cars, the shift to electricity and natural gas for heating, and other factors), then rebounded to a lower level of growth in the mid 1980s. Thus oil production did not peak in 1995, and has climbed to more than double the rate initially projected. This underscores the fact that the only reliable way to identify the timing of peak oil will be in retrospect. However, predictions have been refined through the years as up-to-date information becomes more readily available, such as new reserve growth data. Predictions of the timing of peak oil include the possibilities that it has recently occurred, that it will occur shortly, that a plateau of oil production will sustain supply for up to 100 years, or that oil production will not peak.The demand side of Peak oil is concerned with the consumption over time, and the growth of this demand. World crude oil demand has grown at around 2 percent in recent years. Demand growth is highest in the developing world. World demand for oil is set to increase 37% by 2030, according to the US-based Energy Information Administration's (EIA) annual report. Demand will hit 118 million barrels per day (bpd) from today's existing 86 million barrels, driven in large part by the transportation sector. As countries develop, industry, rapid urbanization and higher living standards drive up energy use, most often of oil. Thriving economies such as China and India are quickly becoming large oil consumers. China has seen oil consumption grow by 8% yearly since 2002, doubling from 1996-2006, indicating a doubling rate of less than 10 years. It currently imports roughly half its oil, with predictions of swift continued growth in coming years. India's oil imports are expected to more than triple to some 5 million barrels a day by 2020.

Energy demand is distributed amongst four broad sectors: transportation, residential, commercial, and industrial. The sector that generally sees the highest annual growth in petroleum demand is transportation, in the form of new demand for personal-use gas-powered vehicles. Cars and trucks will cause almost 75% of the increase in oil consumption by India and China between 2001 and 2025. As more countries develop, the demand for oil will increase further. This sector also has the highest consumption rates, accounting for approximately 68.9% of the oil used in the United States in 2006, and 55% of oil use worldwide as documented in the Hirsch report. Transportation is therefore of particular interest to those seeking to mitigate the effects of Peak oil.

Optimistic estimations of peak production forecast a peak will happen in the 2020s or 2030s and assume major investments in alternatives will occur before a crisis. These models show the price of oil at first escalating and then retreating as other types of fuel and energy sources are used. Pessimistic predictions of future oil production operate on the thesis that the peak has already occurred or will occur shortly and, as proactive mitigation may no longer be an option, predict a global depression, perhaps even initiating a chain reaction of the various feedback mechanisms in the global market which might stimulate a collapse of global industrial civilization.

Possible effects and consequences of Peak Oil

The widespread use of fossil fuels has been one of the most important stimuli of Economic growth and prosperity since the industrial revolution, allowing humans to participate in takedown, or the consumption of energy at a greater rate than it is being replaced. Some believe that when oil production decreases, human culture and modern technological society will be forced to change drastically. The impact of Peak oil will depend heavily on the rate of decline and the development and adoption of effective alternatives. If alternatives are not forthcoming, the products produced with oil (including fertilizers, detergents, solvents, adhesives, and most plastics) would become scarce and expensive. At the very least this could lower living standards in developed and developing countries alike, and in the worst case lead to worldwide economic collapse. With increased tension between countries over dwindling oil supplies, political situations may change dramatically and inequalities between countries and regions may become exacerbated.

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