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Transportation Fuels for the Future.
| 题名： | Transportation Fuels for the Future. |
| 关键词： | transportation fuels,auto industry,vehicle fuel efficiency/vehicle technology, fuel consumption, light duty trucks, suvs, imported oil, dependency/ |
| 摘要： | Transportation fuels are the major component of our energy portfolio. Of the 20 million barrels of petroleum consumed each day in the United States, 68 percent is used in the transportation sector. Over the last 30 years Americas demand for energy has grown unabated. The auto industry has improved vehicle fuel efficiency greatly since the 1970s, but a larger population and vehicle fleet, consumer demand for larger, safer, and more powerful vehicles and increased driving has overwhelmed any fuel savings from improved vehicle technology. Since 1990, much of the increased fuel consumption can be directly attributed to the growth in sales of light duty trucks and SUVs. Alternative fuel programs received significant attention and investment in the 1970s, but lost ground every time the price of petroleum-based fuel declined. All the while, the energy production companies were fighting a losing battle to increase domestic oil production. U.S. daily oil production has fallen from over 11 million barrels per day (mbpd) in 1970 (domestic peak oil) to 6.8 mbpd in 2005. To make up the difference between the oil we consume and the oil we produce domestically, we have increased our dependency on imported foreign oil from 30 percent of our supply in 1970 to over 60 percent today. Much of that oil is imported from foreign nations that are fragile, at best, and hostile, at worst. Imported oil leaves the nation continually vulnerable to oil supply shocks and dependent upon the willingness of other countries to provide the supply we need. This dependency has considerable economic consequences. In 2008 we are likely to spend more than $340 billion a year on imported oil, almost $1 billion a day, if oil prices exceed $75 per barrel on average. That outlay will likely grow as world oil prices continue to rise in response to the growing demand for oil associated with the rapid industrialization of China and India. These nations have a combined population of approximately 3.4 billion people. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 报告类型： | 科技报告 |
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