Roslindale Liquors

One thing that NRM takes particular pride in is that our energy-efficiency controls and measures are a consistent tried-and-true solution for certain business types—where 90% of the time your refrigeration equipment can likely be optimized for better performance. Businesses like convenience stores, restaurants, and liquor stores.

Cold operations like Roslindale Liquors in Roslindale, MA, are our most common beneficiaries. They’ve had our solution integrated into their walk-in coolers since 2019, and have been saving money on their commercial electric bill every month since. In fact, the optimizations produced such good savings, the solution was generating real dollars in recouped profits within the first 18 months.

So, what common inefficiencies did we discover with their walk-in cooler?

Most obvious (as is usually the case): their evaporator fans running at 100% power 24/7/365. Even when the business is closed at 2 AM, even when the temperature outside is 10 degrees, and even when the thermostat in the cooler reads the temperature it’s supposed to. This obviously wastes a tremendous amount of kWh, increasing your electric bill every month. Saying nothing for the unnecessary wear and tear and the equipment itself.

Said evaporator fan’s motors were found to be older, inefficient models, as well.

And lastly, the anti-sweat door heaters on the cooler doors were also found to be running 100% of the time.

The backbone of NRM’s solution is our intelligent controller that now manages your cooling for only when it’s required to satisfy temperature requirements. Depending on your business’s geographic location, and your evaporator fan setup, it’s possible to slash runtimes by 60-80%. To support that kind of improvement, NRM upgrades the fan motors to high-efficiency, electronically commutated versions. Conveniently, the anti-sweat door heaters are connected into the new control solution, putting them on the same kind of “now runs only when needed” schedule. This can often cut their annual runtimes by 80 or 90%.

For Roslindale Liquors, their solution was easy because we’ve seen it literally thousands of times before. NRM was able to integrate the controls without disrupting their day-to-day business, and they were trained on how to use it by our licensed technicians before they left.

In total, Roslindale Liquors is recouping around almost $4,000 each year that otherwise would be spent on their electric bill. By year 5 of having NRM’s solution, they’ll have nearly $20,000 saved in their pocket.