Whole Building Automation

Energy Management Systems (EMS) or Building Automation Systems (BAS) refer to centralized, computer-based systems that monitor and control building systems and energy use. These systems vary in capability and functionality, but are all designed to give somelevel of centralized oversight and remote control of HVAC systems, lighting and other building systems. EMS systems can also interface with other building automation systems that control building functions such as fire and life safety, security systems, elevators and manufacturing processes in industrial facilities. Some centralized systems also provide the capability to monitor and integrate the functions of multiple buildings from a central location. The ability to conduct multi- site monitoring and control over the Internet is a rapidly emerging function and will significantly improve the management |of geographically diverse operations. Some EMS also monitor and analyze energy use and costs and can help building operators manage energy costs across their entire enterprise. The table below summarizes typical functions of an EMS. EMS vendors estimate that an EMS can reduce energy bills by 10 to 20 percent while providing other valuable building management functions.