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Refrigeration Controls

Situation

Foodtown is a 55 store supermarket cooperative operating in Eastern PA, NJ and NY. Groom Energy engaged with one Foodtown independent owner to identify and address energy efficient upgrade opportunities. One key application area in this comprehensive store retrofit was the upgraded control of the refrigeration systems.

Project

Groom Energy’s team performed refrigeration system assessments at several Foodtown stores, measuring consumption, temperature and humidity levels for each store’s medium and low temp systems. The analysis showed that by adding state-of-the-art refrigeration technologies, the systems would deliver more consistent case and walk-in box cooling, take advantage of seasonally low outside temperatures, and reduce energy consumption significantly.

Over a three month period, Groom Energy implemented this comprehensive upgrade with new compressor and fan controls, anti-sweat controllers and premium efficiency motors, as well as full store LED lighting upgrade for seven Foodtown stores. The implementation was executed in such a way as to not disrupt Foodtown’s on-going business. The added combination of high energy rates and support from local utility incentive areas translated into a fast return.

The new controls also provide Groom Energy real time visibility into the refrigeration system to ensure that the savings generated by the project were not negated by future maintenance and service events.

Results

Total average cost of upgrade per store $250,000
Rebate supporting the upgrade $100,000
Net investment $150,000
Return on investment 62%
Simple payback 19 months