A Profile of Energy-Efficiency Opportunities in Tennessee The economic recession, climate change concerns and rising electricity costs have motivated many states to embrace energy efficiency as a way to create new local jobs, lower energy bills and promote environmental sustainability. With this surge of interest in energy efficiency, policymakers are asking: “how much energy can be saved?” This profile characterizes the opportunity for cost-effective energy-efficiency improvements in the residential, commercial and industrial sectors of Tennessee. It draws on the results of a study of Energy Efficiency in the South conducted by a team of researchers at the Georgia Institute of Technology and Duke University. The studypresents primary and in-depth research of the potential for energy-efficiency improvements, using a modeling approach based on the SNUG-NEMS (National Energy Modeling System).1 With a population of 6.3 million people2,the State represents about 2.1% of the U.S. population, 1.8% of the nation’s Gross Domestic Product (GDP), and 2.3% of U.S. energy consumption (Figure 1). 3 Thus, compared to the rest of the nation, Tennessee has a higher-than-average level of energy intensity (that is, it consumes more energy per dollar of economic activity than most other states).