CALMAC is transforming how energy is used at buildings to the time when energy is used. Widely recognized for promoting peak energy conservation and energy cost savings CALMAC is a member of the U.S. Green Building Council (USGBC). CALMAC is the manufacturer of IceBankĀ® Energy Storage equipment, with over 4,000 Ice Storage installations in over 35 countries. IceBank systems are a valuable component of the smart grid, enabling energy, including renewable wind energy that mainly blows at night, to be efficiently stored for use during periods of high demand.