Energy efficiency is a topic of great concern among a wide range of stakeholders and this 210-page report from the National Research Council delves into some interesting new findings on the subject. Released in December 2009, the report looks into the subject of energy efficiency technologies and their viability in the coming years and decades. The report is divided into five primary chapters which address energy efficiency in commercial and residential buildings, transportation, and industry. Appendices to the report include definitions of energy efficiency, energy efficiency net costs, and a detailed guide to acronyms and abbreviations. Visitors will be interested to learn that nearly 70 percent of electricity consumption ion the United States occurs in buildings and that replacing appliances such as air conditioners and freezers could reduce energy use by 30 percent. This site also features an executive summary of the report and helpful video titled "America's Energy Future".