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Annual Energy Outlook 2019with projections to 2050 January 24, 2019 www.eia.gov/aeo #AEO2019 Annual Energy Outlook 2019with projections to 2050January 2019 U.S. Energy Information Administration Office of Energy Analysis U.S. Department of Energy Washington, DC 20585 This publication is on the Web at: www.eia.gov/aeo This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or other federal agencies.3 Projections in the Annual Energy Outlook 2019 (AEO2019) are not predictions of what will happen, but rather modeled projections of what may happen given certain assumptions and methodologies. The AEO is developed using the National Energy Modeling System (NEMS), an integrated model that captures interactions of economic changes and energy supply, demand, and prices. Energy market projections are subject to much uncertainty because many of the events that shape energy markets as well as future developments in technologies, demographics, and resources cannot be foreseen with certainty. To illustrate the importance of key assumptions, AEO2019 includes a Reference case and six side cases that systematically vary important underlying assumptions. More information about the assumptions used in developing these projections will be available shortly after the release of the AEO2019. The AEO is published to satisfy the Department of Energy Organization Act of 1977, which requires the Administrator of the U.S. Energy Information Administration to prepare annual reports on trends and projections for energy use and supply. The Annual Energy Outlook provides long-term energy projections for the United States

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