Grocery Stores

Have you ever wandered the aisles of your local grocery stores and wondered just how much energy they use to keep the food cold, and the building itself warm, even in the dead of winter? 

Conventional refrigeration systems are energy intensive, and typically the grocery stores simply dump the waste heat from the refrigeration units, rather than moving it to an area in the facility where it can be put to better, more efficient use.  Because of this, the energy consumed by grocery stores is high, and the economics of replacing conventional systems with heat pumps are attractive.  Refrigeration consumes over 50% of the average grocery store’s energy budget, and heating consumes close to 20%.  Significant cost savings can be achieved by using the heat generated by the refrigeration units’ compressors to heat the remainder of the building and provide hot water.  With this method the heat is not lost, but is put to good use and can greatly reduce the amount of fossil fuel required for heating

Copper Ridge Grocery Store

The owners of the Copper Ridge grocery store in Whitehorse were actively looking for a way to significantly reduce the operating costs of their new 12,000 square foot grocery story, and at the same time provide a more comfortable environment for their customers and staff.  Geoexchange provided a great solution for them.  

The system that was designed by CleanEnergy’s engineers was made up of seven heat pumps, a secondary loop that collects the heat rejected from the compressors on the refrigeration units and freezers, a 40,000 btu boiler and an air handler. .  The rejected heat is then used to warm the building and provide hot water.  The small boiler is used to provide back up heat for those very cold days in the height of winter.

This system has really impressed us. This store operates around 70% less than our other stores.
Sam Jurowich, Owner of Copper Ridge Food Store
 

By moving heat from an area where it is not needed to one where it is, CleanEnergy designed a highly efficient system.  The building achieved a rating from Natural Resources Canada’s Commercial Building Incentive Program of 31.5 % higher than the Model National Energy Code for Buildings, which itself is 25 % better than the standard building code.  And just as important:  the store’s owners are very happy with their system, and even more so with the money they are saving each month.