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Refrigeration is the largest energy use in grocery stores. Using rejected heat to meet low-grade heating requirements can create significant gains in efficiency. The author shares a number of ways the design of the refrigeration and HVAC systems in grocery stores may be integrated to achieve this savings. They can also be found in the recent Advanced Energy Design Guide for Grocery Stores: Achieving 50% Energy Savings Toward a Net Zero Energy Building.

Citation: ASHRAE Journal, Vol. 59, No. 1, January 2017