This document discusses energy consumption monitoring and analysis systems. It begins with an abstract that outlines the phases of an energy audit from basic walkthrough surveys to complex modeling. It then discusses remote monitoring systems using wireless sensors for industries. The paper reviews available solutions and research being done to improve these systems. It provides details on how energy management systems work, including using multifunctional energy meters, data loggers, and monitoring software to analyze energy usage data from industries in order to identify opportunities to reduce consumption. Charts and figures are included to illustrate typical energy reports.