The U.S. Department of Energy (DOE) is charged under the Energy Independence and Security Act of 2007 (EISA 2007) with modernizing the nation’s electricity grid to improve its reliability and efficiency. As part of this effort, DOE is also responsible for increasing awareness of our nation’s Smart Grid. Building upon The Smart Grid: An Introduction, a DOE-sponsored publication released in 2008 and available online at, this publication is one in a series of books designed to better acquaint discrete stakeholder groups with the promise and possibilities of the Smart Grid. Stakeholder groups include Utilities, Regulators, Policymakers, Technology Providers, Consumer Advocates and Environmental Groups.