Skip to content

Posts tagged ‘progressive grocer’

Evaluating Sustainable Supermarket Refrigeration Technology

AndrePatenaude_Blog_Image Andre Patenaude | Director, Food Retail Marketing & Growth Strategy, Cold Chain

Emerson Commercial & Residential Solutions

Progressive Grocer recently interviewed me about Emerson’s and the commercial refrigeration industry’s efforts to help promote the emergence of more sustainable, refrigeration technologies. The complete article can be found here.

Evaluating Sustainable Supermarket Refrigeration Technologyd

It’s not news that supermarkets are under continuous regulatory pressure to not only lower the energy demand of their refrigeration systems, but also to make the transition to low global warming potential (GWP) and zero ozone depletion (ODP) systems. The permanent ban on R-22, long the industry standard, becomes official on January 1, 2020.

What is news is how intensely suppliers and retailers are focused on and sharing information on sustainability initiatives intended to sharply reduce the costs and impact of their refrigeration systems, both in anticipation of future regulations and to attain long-term economic and environmental sustainability.

As different manufacturers approach these issues with a variety of new technology options, the challenge becomes defining new standards for sustainable products and systems, so that the industry can converge on proven, synergistic solutions.

Taking a full system’s approach to sustainability

At Emerson, our approach to sustainability is based on a multi-faceted goal. First, sustain the environment through lower-GWP refrigerant and technology choices. Second, sustain companies financially from a total cost of ownership perspective. And third, focus on energy efficiency as a path to sustainability through forward-looking engineering and the implementation of new monitoring and control technologies, particularly Internet of Things (IoT) capabilities.

At Emerson, we take a full system approach to evaluate the sustainability of new and existing technologies in the context of multiple key selection criteria. This is part of Emerson’s “Six S’s” approach to refrigeration sustainability: simple, serviceable, secure, stable, smart and sustainable.

(To learn more about the rationale, methodology, application and impact of Emerson’s “Six S’s” philosophy, read the blog found here.)

Exploring the potential of natural refrigerants

One area of Emerson’s focus is our work to better understand and then implement emerging natural refrigerants, such as R-744 (carbon dioxide) and R-290 (propane) for different types of applications.

Recent innovations include the development of an integrated display-case architecture. This R-290 system is designed to use one or more compressors and supporting components within cases, removing exhaust heat through a shared water loop — incorporating our expertise in R-290 compressors and our experience with stand-alone condensing units. We’ve also developed a full range of CO2 system technologies, including valves and controls for both small and large applications. For cold storage applications, our modular refrigeration units utilize both CO2 and ammonia-based refrigerant configurations.

Early adopters pave the road to the future

Over the past decade, there have been many retailers committed to testing sustainable refrigeration technologies and low-GWP refrigerants in their stores. For example, the article quoted Wayne Posa of Ahold Delhaize USA, who discussed the company’s transition from R-22, stating: “Food Lion has been committed to zero-ODP and low-GWP refrigerants for several years.”

Different manufacturers are taking different approaches to studying and applying refrigerants and technologies to reach that goal, from the use of hydrofluoroolefin (HFO) refrigerants (such as R-448A and R-450) in distributed refrigeration systems to proven CO2-based system architectures.

In the area of refrigerants — let alone technologies in development for increased energy efficiency and remote monitoring and control — the refrigeration industry continues its search for a new standard. As Brian Beitler of Coolsys, a consulting and contract engineering firm explains, “Between transcritical, ejector systems, NH3 over CO2, cascade, propane, multidistributed and hybrid gas coolers, the jury is still out.”

As we move closer to the most sustainable standard for refrigerants, Emerson continues its work on total refrigeration system sustainability — in refrigerants, energy efficiency, and control — as guided by our “Six S’s” philosophy. This work is our road map to the future.

 

Supermarket Upgrades That Impact Energy Efficiency and Cost Savings

DarrenCooper Darren Cooper | President

Renteknik Group

At the E360 Forum in Houston last fall, Nik Rasskazovskiy, director of business development for ClearFlow Energy Finance, and I discussed the role of energy services companies (ESCOs) in helping grocery operators achieve and sustain long-term energy savings with end-to-end solutions. We shared our insights and experiences, as well as best practices and real-world case studies. Read more below, then view the full E360 Forum presentation.

According to Progressive Grocer Magazine, food retail is an almost $700 billion industry. Operating on razor-thin margins (generally a little more than 1 percent and only seeming to get slimmer every year), the industry is always on the lookout for new ways to cut costs and boost profitability.

Already making a considerable positive impact on the bottom line in other industries, ESCOs can offer grocery operators a new opportunity to reduce their energy spend — and increase profits.

Reducing energy spend is already a key objective for supermarket operators. ESCOs offer a systematic way to implement sustainable, long-term efficiency plans across their fleet with minimal risk or initial out-of-pocket expense.

How does it work?

ESCOs are in the business of developing, designing, funding and ultimately building turnkey solutions that save energy, reduce energy costs, and decrease operations and maintenance costs at their customers’ facilities.

ESCOs actually guarantee their clients a specific level of energy cost savings from the proposed project. They are subsequently compensated via the actual performance of the project, earning a percentage of the overall energy savings dollars for an agreed upon length of time. At the end of the term, the client keeps the savings for perpetuity.

In the presentation, I said, “The opportunities are real and the savings are real. We’re not doing anything that is really groundbreaking. This is not new technology. This is proven technology that you can actually utilize and implement in your systems. The ESCO part means that there’s no upfront cash necessary. We’re now in a position to provide this as a turnkey solution. We can work with your preferred equipment supplier and your preferred contractor, without needing any money, so you’re cash flow positive from day one.” And I meant every word of it.

The first step in your journey to energy efficiency: establishing a baseline

To identify savings opportunities, you must first fully understand your current energy consumption. Fortunately, today’s device-level power monitoring technologies offer real-time insights into your control systems and can help create “power profiles” by tracking usage across a wide range of temperatures and conditions.

Beginning from that baseline, the ESCO team works with food retailers to conduct comprehensive building and systems audits to identify opportunities for sustainable, long-term energy efficiency upgrades. This can take the form of refrigeration upgrades, variable frequency drives (VFDs), new cases or case controls, HVAC and demand control ventilation, and even renewable technologies if they make sense.

A proven process that’s yielded positive results, the ESCO methodology is sound and straightforward:

  • Building system audit completed — opportunities identified, target savings established
  • Client and ESCO enter into guaranteed, performance-based energy savings performance contract
  • ESCO secures financing
  • Project is built and commissioned
  • Ongoing monitoring and verification ensure that target efficiency savings are being met
  • Lender is repaid from savings
  • At the end of the term, the client keeps all savings

“It’s really a win-win situation,” noted Rasskazovskiy, who’s successfully navigated the financial end of projects across multiple industries. “Once the ESCO organizes everything, implements the project and the savings start trickling in, there’s a management process that verifies that the actual savings have been achieved. Those savings are shared between the end customer and the ESCO to pay out all the services costs, including financing. After the term of the contract is done, the customer is left with the same equipment and gets to enjoy 100 percent of the savings going forward.”

To learn more about ESCOs and the retail food industry, including real-world savings examples, watch the video here.

 

%d bloggers like this: