In 2015, Mt. San Antonio College (SAC) needed to expand their central plant to handle the cooling of the additional buildings, and occupants. As a part of the expansion of the central plant, a 2.0 million gallon chilled water Thermal Energy Storage (TES) tank was designed into the district cooling system by P2S Engineering, Inc.

The tank was designed and built for a useable TES capacity of 20,000 ton-hours and a maximum chilled water flow rate of 5,000 gallons per minute. The tank was designed to provide cooling for the campus during the peak electric period of time during the afternoon, allowing the chiller equipment to de-energize during this time, and permanently reduce the electric demand. Utilizing the TES tank, the campus will permanently reduce the peak electric demand.

Chilled Water Thermal Storage