Adding controls or enhancing existing controls provides significant opportunities for saving energy, especially energy that is being used when it is not needed.
Many times energy management systems are in place and are underutilized. This is very common when a facility expands its operation and adds additional buildings, yet does not have the capital to add the building to the existing EMS. In addition, it is not uncommon that advanced strategies such as optimal start, occupancy based setbacks, economizer control, and demand control ventilation are not incorporated. The majority of these strategies take advantage of periods of low to no occupancy. These more advanced strategies can usually be incorporated economically and produce significant savings.