These systems provide chilled water for use in air conditioning or other cooling applications. While some models of chillers are more energy efficient than others, all generate a valuable commodity: waste heat. When skilled operating personnel will not be on duty during system operation, operations are planned to use absorption chiller as a peak shaving unit.
Thermal Storage System
With a thermal storage system, the idea is to run chiller equipment off-peak and store cooled water or ice, then draw on this cooling during the peak times of the day. These systems take one of three forms: chilled water, ice or a salt-water hybrid of both—called a eutectic system. Specifying which system is based on the availability of space for storage media, cooling load profile, rate schedule and current equipment.