Abstract

Concerns about energy security have dramatically increased since the terrorist attacks on September 11, 2001. If U.S. energy use follows business-as-usual projections, the energy system will become increasingly vulnerable. No quick fixes are available to make the United States energy independent. However, there are energy policies that promote efficiency and the use of renewable energy sources such as wind, biomass, geothermal, and solar can gradually reduce dependence on imported oil and natural gas and reduce the vulnerability of the U.S. energy infrastructure to disruption of supplies or to attack. This article reviews recent analyses by the U.S. Energy Information Administration’s and by the Union of Concerned Scientists. These studies showthat efficiency and renewable energy investments can increase energy security while lowering consumer energy bills and reducing local and global environmental hazards.