Cool Thermal Storage

Thermal storage systems can save operating costs by using off-peak electricity to produce chilled water or ice for cooling during peak hours. The storage systems are most likely to be cost-effective in situations where:

  • Your facility’s maximum cooling load is much greater than the average load
  • The utility rate structure has high demand charges, ratchet charges, or a substantial difference between on- and off-peak energy rates
  • You’re expanding an existing cooling system
  • An existing tank is available
  • Limited electric power is available at the site
  • Backup cooling capacity is desirable
  • Cold-air distribution would be advantageous

It’s difficult to generalize about when cool storage systems will be cost-effective, but if you meet one or more of the above criteria, it may be worth doing a detailed analysis.

What are the options?
How to make the best choice
What’s on the horizon?
Who are the manufacturers?