The acronym, "MEP," stands for "Mechanical, Electrical and Plumbing," a type of engineering which focuses on the disciplines needed to build safe, working structures for human use and occupation. The mechanical aspect focuses on heating, cooling and ventilation, and the electrical aspect focuses on providing power to all outlets and appliances. The plumbing aspect focuses on the delivery of water and the draining of waste water.
The mechanical part of MEP is also known as HVAC. It is responsible for the installation and maintenance of air conditioning, heating and ventilation, meaning changing filters and installing furnaces, along with air conditioners. When necessary, it also handles tasks such as smoke control and exhaust The electrical part is responsible not only for outlets and appliances but also lighting, switches, fire alarms, security systems, as well as lightning protection when necessary. The plumbing part also handles fire suppression systems and storm pipe systems, as well as gas delivery systems in medical and laboratory settings.
Modern technologies for building require a great deal of energy and water, along with sophisticated and secure methods of delivery. Large buildings also require substantial ventilation and other environmental controls, as well as safety precautions for their larger populations and larger distances from exits.