JC Penney Headquarters Plano, Texas

What is Off-Peak Cooling (OPC)? CALMAC’s Off-Peak Cooling systems (OPC) utilize a standard packaged chiller to produce ice during the night and store it in modular ICEBANK® thermal-energy storage tanks. The stored ice provides cooling the following day to meet the building’s air- conditioning requirement.

Why should building owners and engineers consider OPC for office/commercial building applications?

• Air conditioning during summer daytime hours is the largest single contributor to a commercial/office building’s energy cost.
• OPC has proven to lower cooling costs up to 40 percent or more depending upon electric rates.
• CALMAC’s Off-Peak Cooling systems have a proven performance track record for reducing energy costs by as much as 20 to 40 percent.
• Provides quantifiable return on investment.
• Conserves our natural resources.
• Provides operational flexibility as energy rates change.
• Can be used for new construction or retrofit applications.
• See more benefits.

CALMAC has partnered with The Durst Organization (PDF, 87 Kb), Underwriters Laboratories, Mary Kay, Kohl’s, DuPont, IBM, DaimlerChrysler, Wang, American Airlines, McDonald’s, Marriott Hotels, JC Penney, and other customers throughout the world.

CALMAC worked closely with the JC Penney team when they decided that Off-Peak Cooling would be the best cooling solution for the company’s Plano, Texas, headquarters. Energy cost savings were originally projected at $250,000 annually; however, the system has saved JC Penney over $300,000 in annual energy costs.

We also encourage you to fill out our thermal storage analysis form, and a member of our team will contact you with an evaluation of your facility.

Within this site you can learn more about CALMAC’s OPC systems and the specific benefits that this type of HVAC system can provide for you.