In the past 20 years in the United States, the demand for energy has doubled, and it is expected to increase by 3.6% annually until the end of the twentieth century. This paper discusses the implications of the increased demand, and the resources needed to meet it. Nuclear power is seen as a partial answer, as is low-sulfur coal. Some untapped oil reserves are available in the United States, but oil will undoubtedly have to be imported to meet the demand. A concerted effort to conserve energy is needed to help hold imports to acceptable levels.