text: FIGURE 1.7 Historical (1980–2007) and projected (2008–2030) energy consumption in the United States by primary energy source, in quads. The projected energy use from 2020 to 2030 reflects the U.S. Energy Information Administration’s (EIA’s) 2008 reference case; this reference case assumes that current policies that affect energy supply and consumption will remain unchanged and that economic growth rates and technology development and deployment trends will continue over the next 20 years. As explained in Box 2.1 in Chapter 2 and in Annex 3.A in Chapter 3, the AEF Committee uses the EIA reference case as the reference scenario for its study.