TES can shift a significant portion of a hospital's energy demand away from the peak-cost period to a lower-cost period. Utilities often support this technology, because it relieves pressure to construct new and costly power plants. Shifting a large energy demand away from the peak period enables the utility to maximize its generating plants, so it saves money for both the customer and the utility.
The Dallas, Texas Veterans Administration (VA) Medical Center is one of those hospitals intrigued with the idea of TES. It now relies on a stratified water thermal storage system, with a 3.3-million-gal tank, to balance energy demands during peak needs.