What is the primary function of Energy Management Systems (EMS)?

The primary function of Energy Management Systems (EMS) is to optimize the operation of building systems, particularly in relation to energy consumption. By cycling HVAC (heating, ventilation, and air conditioning) systems based on occupancy or predetermined schedules, EMS can significantly reduce energy waste. These systems assess when areas of a building are occupied and adjust heating and cooling accordingly, which not only helps in lowering energy costs but also improves overall comfort for occupants by ensuring that HVAC systems are only active when needed.

This function is crucial in commercial settings, where energy efficiency and cost-effectiveness are paramount. By controlling the HVAC runtime, EMS ensures that energy is used efficiently without sacrificing indoor climate quality. In contrast, options that suggest keeping windows sealed, increasing HVAC voltage, or maintaining constant humidity do not directly address the primary goal of managing energy consumption and optimizing HVAC performance.