This document presents information on smart energy meters. It begins with an introduction that defines a smart device and smart energy meter. The history section discusses the early development of sensor technology in the 1970s that led to the first smart meters. The purpose section outlines benefits for utility companies, such as reduced costs and prevention of energy theft, and benefits for customers like increased awareness of energy usage. The document discusses some criticisms around security, health, privacy, and overheating. It also provides information on India's smart meter program and concludes that smart meters are an important part of the smart grid and fulfill future electricity demands in a safe manner when specifications are followed.