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Posts from the ‘Food Safety’ Category

10 Takeaways From 10 Years of GreenChill Data

JohnWallace_Blog_Image John Wallace | Director of Innovation, Retail Solutions

Emerson Commercial & Residential Solutions

The Environmental Protection Agency’s (EPA’s) GreenChill Advanced Refrigeration Partnership recently completed a 10-year study examining supermarket data trends. In our latest E360 Webinar, Tom Land, manager of the program, presented these findings from GreenChill’s unique perceptive. View the webinar in its entirety or read the summary below.

Latest E360 Webinar on Demand

For more than a decade, the GreenChill program has worked with supermarket retailers across the country to promote the use of “greener” refrigeration systems in their stores. While our industry is in the early phases of transitioning to more sustainable refrigeration, GreenChill partner companies are at the forefront of this movement. The number of retailers participating has increased significantly since the program’s inception, and the data Tom discussed at the webinar provides a road map for other companies as they formalize their own sustainability initiatives.

Let’s look at 10 takeaways from the recent webinar.

  1. GreenChill partnership on the rise — in 2007, just more than 4,000 stores were GreenChill partners; today, that number exceeds 11,000 stores.

 

  1. Partner refrigerant emissions remain low — among the growing number of participating GreenChill partner stores, emissions have been held to a minimum. This is in large part due to the program’s emphasis on reducing refrigerant leaks and system charges.

 

  1. Refrigerant charges are declining — the average amount of refrigerants used in participating stores has declined steadily since 2007, even as the number of stores increases.

 

  1. Pounds per store leaks are dropping — in 2007, partner stores emitted more than 390 pounds per store every year; today, 290 pounds is average.

 

  1. Leak rates well below industry averages — on average, GreenChill partners have a leak rate of 13.9 percent, well below the industry average of 25 percent. Twelve of the partners have achieved a leak rate below 10 percent.

 

  1. One-fifth still use R-22 — although R-22 use is on the decline overall, 20 percent of commercial refrigeration systems continue to use it.

 

  1. Low-GWP refrigerants on the uptake — R-407A accounts for 20 percent of partner-installed refrigerants; installations with refrigerants less than 1,420 GWP now account for nearly 3 percent of all partner-installed refrigerants, with R-448A accounting for much of this growth.

 

  1. CO2 installations increase — installations of CO2 secondary loop, cascade and transcritical booster systems among partners continue to rise, with more than 12 partners exceeding a combined total of 160,000 pounds of installed R-744.

 

  1. Growth of GreenChill certifications — in 2009, fewer than 25 stores achieved GreenChill Gold and Silver certifications; today more than 360 stores have achieved Platinum, Gold and Silver certifications and re-certifications.

 

  1. California leads certification — among those states with GreenChill-certified stores, California leads the country with 151 stores. The next closest state is Florida with 45 stores.

Over the past decade, Emerson has worked with a variety of GreenChill partners to meet their sustainability objectives, utilizing leading low-GWP refrigerant alternatives and energy-efficiency strategies. If you’re interested in transitioning to a greener refrigeration system, we’re here to help you develop a strategy that meets your long-term goals.

Emerson Will Present at GreenChill Webinar on Natural Refrigerants

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

Emerson Commercial & Residential Solutions

Emerson is happy to announce its participation in a webinar sponsored by the Environmental Protection Agency’s (EPA) GreenChill program. Join Andre Patenaude, director of food retail marketing & growth Tuesday, July 30 at 2 p.m. EDT / 11 a.m. PDT for a discussion about Making the Transition to an Effective Natural Refrigerant Architecture.

Emerson Will Present at GreenChill Webinar on Natural Refrigerants

For several years, the use of natural refrigerants in supermarket refrigeration has become an increasingly relevant topic across our industry. While taking a natural approach may seem like a far-away future concept to some, successful implementations are happening in various global regions and slowly becoming more commonplace in the U.S. as well.

Typically, discussions about natural refrigerants are part of a larger context, one that recognizes the ongoing transition from legacy refrigerants to sustainable alternatives. Here, natural refrigerants are among the most readily available, viable options, because they offer very low global warming potential (GWP) and no ozone depletion potential (ODP). But with relatively low adoption in U.S. supermarkets, there is still a fair amount of uncertainty among operators considering a move to natural refrigerant systems.

Industry initiatives like the GreenChill program are helping to promote broader use of natural refrigerants. Over the last decade, Emerson has been a leader in the development of natural refrigerant-ready components and systems. That’s why we’re pleased to announce a free GreenChill webinar that will feature two of Emerson’s experts on this topic, Andre Patenaude and John Wallace. Attendees will learn:

  • Characteristics and caveats of using CO2 (R-744), propane (R-290) and ammonia (R-717)
  • Market trends driving the use of natural refrigerants, such as: evolving store formats, corporate sustainability objectives and the dynamic regulatory climate
  • Examples of successful natural refrigerant system installations and trials taking place
  • Details about common natural refrigerant architectures and innovations

Backed by innovations from leading equipment manufacturers, regional governance incentives and federal sustainability programs, the transition to natural refrigerants is more viable today than ever before. We hope you’ll make plans to join Andre and John on Tuesday, July 30 at 2 p.m. EDT / 11 a.m. PDT for this informative free GreenChill webinar.

How to register and attend

To register for this informative free event, please mark your calendar now and then follow these steps on the day of the webinar:

  1. Visit the webinar access page: Making the Transition to an Effective Natural Refrigerant Architecture
  2. If you get a Window Security screen, click “OK”
  3. Select “Enter as a Guest”
  4. Enter your name
  5. Click “Enter Room”
  6. Click “OK”

California’s HFC Phase-down: Costs, Energy, Leaks and Incentives

RajanRajendran2 Rajan Rajendran | V.P., System Innovation Center and Sustainability

Emerson Commercial & Residential Solutions

As Jennifer Butsch and I discussed in our most recent E360 Webinar, the California Air Resources Board (CARB) has adopted the Environmental Protection Agency’s (EPA’s) Significant New Alternatives Policy (SNAP) regulations 20 and 21. ACHR NEWS, which attended our webinar and CARB’s most recent public stakeholder meeting, has compiled a report on the implications of CARB’s hydrofluorocarbon (HFC) phase-down efforts. Below is a synopsis of their article, which you can read here in its entirety.

California’s HFC Phase-down: Costs, Energy, Leaks and Incentives

In early March, CARB held its first of several public technical working group meetings of the year. While the focus of this workshop was on stationary AC equipment, the scope of the issues discussed also extended to matters impacting commercial refrigeration. The purpose of these meetings is to gain insights into the many questions surrounding the implementation of its current and future regulations governing the state’s HFC phase-down. In this session, CARB posed several questions related to equipment costs, refrigerant leaks, the intersection with energy efficiency regulations and incentives for making the transition to lower-GWP refrigerants. And while these questions were targeted to California stakeholders, their relevance extends to the larger United States, where it is estimated that a federal mechanism to phase down HFCs will eventually be reinstated.

First costs, installation and maintenance

As we discussed in our most recent webinar, the commercial refrigeration sector is where the industry will continue to experience a proliferation of refrigeration systems. But this presents a series of challenges for OEMs and component manufacturers as we attempt to balance refrigerant GWP limits with economic viability — with hopes to minimize first costs, install costs and long-term service expenses of new equipment.

Opinions about cost considerations varied at the CARB meeting, though attendees generally agreed that first costs on AC equipment could range from 5 to 15 percent in various categories of equipment. CARB estimated that install and maintenance costs could increase anywhere from 5 to 10 percent, especially considering the need for additional contractor and technician training and tools to work with lower-GWP refrigerants such as A2Ls.

Factoring energy into the equation

For OEMs, meeting CARB’s GWP limits is only one of the regulatory milestones they will face in the next few years. The Department of Energy’s (DOE’s) new energy efficiency requirements are scheduled for 2023, which means OEMs need to factor both energy-related equipment upgrades and the refrigerant transition into their design cycles. This was another topic of debate at the CARB meeting.

CARB members suggested that OEMs could try to offset upgrade expenses and achieve economies of scale by combining design cycles. Representatives from the Air-Conditioning, Heating and Refrigeration Institute (AHRI) took the position that these upgrades would require separate efforts. To help CARB understand the implications of these scenarios, AHRI cited survey data in which its members considered the costs of efficiency upgrades before addressing required refrigeration changes.

Leak reduction and prevention

Meeting attendees reached a consensus when discussing the problem of refrigerant leaks. As an AHRI representative pointed out: none of California’s GWP targets will be attainable if the industry can’t figure out this critical issue. They cited a UN Environmental Program report that estimated up to 60 percent of GWP sources from HVACR equipment can be traced to leaks.

And as we reported in our recent webinar, supermarkets that in the EPA’s GreenChill program have achieved drastically reduced leak rates, sometimes more than 50 percent. It’s also a reminder that as California and the rest of country continue their transitions to lower-GWP refrigerant alternatives, proper reclamation, recycling and disposal of HFCs will be extremely important.

Incentivizing participation

When the California Senate Bill No. 1013 (aka the California Cooling Act) was passed in 2018, it included an incentive mechanism via the Fluorinated Gases Emission Reduction Incentive Program. To date, this program has remained unfunded in the 2019 budget, although there still is yet a possibility for budget adjustments this year.

As was noted in the article, California’s tradition of incentives has helped create momentum to move the state toward lower-GWP refrigerants, systems with lower leak rates and better recordkeeping. Regardless, early adopters of climate-friendly cooling will have a variety of options from which to choose for new low-GWP systems, retrofits and upgrades.

What’s next?

CARB has stated that it will hold further stakeholder meetings this year, including a workshop focused on commercial refrigeration at the end of May. These meetings will conclude with a draft of the proposed new rulemaking along with continued economic analysis. As the industry awaits an update from the EPA on HFC-related regulations, California continues to be the country’s torchbearer for low-GWP refrigeration and cooling systems. As I was quoted in the article, our industry still has a lot of learning to do in the next four or five years, as the refrigerant transition will continue to drive equipment changes.

 

HVACR Contractors Offer Practical Perspectives on Refrigerant Regulations

BobLabbett_Blog Bob Labbett | V.P. – Aftermarket Distribution, Cold Chain

Emerson Commercial & Residential Solutions

At a recent E360 Breakfast, Emerson hosted a panel of three Atlanta-area HVACR contractors to glean their firsthand insights into the biggest challenges and emerging trends impacting their businesses and customers. A recent article covers a wide range of topics and issues, including this discussion about the impacts of refrigerant regulations on contractors and their customers. You can read the full article here.

The service impacts of refrigerant regulations

Imagine showing up to a job site and not knowing which refrigerant is being used in the refrigeration or AC system. According to Martin Hoover, owner of Empire Heating & Air Conditioning in Atlanta, this has become an all too common scenario. “When pressures aren’t reading true, we have to start from scratch with a total refrigerant evacuation, recovery and recharge before even attempting a diagnosis,” he said. Hoover noted that the transition from legacy refrigerants to today’s lower-GWP options comes at a cost, even for those refrigerants that are considered “drop-in” replacements.

Michael Duffee, owner of Restaurant Equipment Services, Inc. of Tucker, Ga., added that customers are not happy to see recovery and disposal fees tacked onto their bill, and this is putting competitive pressures to use shortcuts on small contracting businesses. “Many companies may not be following proper recovery protocols to win business, which can put companies like ours at a disadvantage,” noted Duffee. “It is obviously counterproductive from an environmental standpoint.”

When asked if customers were even interested in the trend toward using lower-GWP refrigerants, Duffee said that in his experience, cost considerations are his customers’ first priority. Even if their legacy systems are leaking, customers are reluctant to invest in replacement equipment. They may be more open to discussing new refrigerants when that investment eventually becomes inevitable.

Presenting new refrigerants as an opportunity to add value

Jim Wharton, area vice president of Link Network, ABM in Atlanta, serves a much larger enterprise customer base. He said his customers have demonstrated more interest in making these investments, and his company is trying to frame the transition as an opportunity. “It’s challenging to align customers’ goals with the available equipment options, but there are some cases where federal and regional regulations are forcing a change.” Wharton added that change isn’t always good news for customers, but he helps them understand the real values of their investment, including total lifecycle costs, energy efficiency and performance advantages.

Too many options result in too much complexity

All three of the contractors said that refrigerant uncertainty is also adding complexity to the equipment decision-making process. Hoover noted his customers are concerned about the long-term viability of the changes. “The last thing they want after investing in a new system is for it to be phased out in four to five years due to a refrigerant change.” All three contractors agree that the industry would benefit by standardizing. Hoover added, “Preferably, we’d like to see one refrigerant, not five or six different options, to replace the old ones.” He pointed out that many contractors simply aren’t able to carry multiple varieties of refrigerants in their trucks at all times. And since these different refrigerants often have unique performance characteristics, variety only adds complexity to service calls.

At Emerson, we’ve seen the wide range of new refrigerant options as a technical challenge, developing equipment and retrofits to accommodate and optimize their performances. But it’s our interactions with contractors and customers that give us insights into how options ultimately impact end users. Their answers shed much-needed light on potential solutions — such as a press toward a single, standard and regulatory-compliant refrigerant.

Smaller Supermarket Formats Dictate Fresh Refrigeration Approaches

JohnWallace_Blog_Image John Wallace | Director of Innovation, Retail Solutions

Emerson Commercial & Residential Solutions

Meeting the demands of emergent small-format supermarkets requires a new approach to — or adaption of existing — refrigeration architectures. This blog is based on a recent article that discusses available options. Read the full article here.

One of the biggest trends shaping the food retail industry is the shrinking store footprint. Instead of building large mega centers that once dominated the landscape, today’s retailers are opting to extend their brands into smaller stores, typically in densely populated areas. The small-format trend is part of a larger evolution — one that emphasizes high-quality, fresh, perishable offerings while appealing to consumer desire for more convenience.

Food retailers that are embracing these changes must also evaluate how their approaches to refrigeration architectures and controls will also need to adapt. Fortunately, there is no shortage of available options to help operators make this transition.

Scale down for “centralized” familiarity
A traditional big-box supermarket has more than 100 cases (a mix of medium- and low-temperature cases) supported by centralized refrigeration racks and controls designed to optimize large systems of this type. If you shrink these systems down for smaller formats with less merchandise, it stands to reason that you may not need as many racks. With stores shrinking from more than 100,000 to less than 20,000 square feet, they simply won’t need the same refrigeration horsepower.

In many cases, operators may still want to use centralized architectures for both medium- and low-temperature cases, but appropriately scaled down to suit the small format. Often, we’re able to design a system with one rack to manage medium- and low-temperature needs. Since it’s a much smaller centralized system to support fewer case lineups, it has much shorter refrigeration lines running out to the cases.

From a system controls standpoint, this smaller centralized architecture isn’t drastically different, so retailers can achieve relatively the same look and feel in both large and small store formats — while also providing the flexibility to scale across the full spectrum of store sizes.

Explore “distributed” efficiencies

While distributed refrigeration systems have been preferred in large supermarkets in Europe and other global regions, they are also well-suited for the small-format emergence in the U.S. Distributed architectures come in different formats and offer a cost-effective refrigeration strategy for smaller stores. Preferred distributed architectures include:

  • “Self-contained” cases (i.e., a completely integrated refrigeration system within the case); also provide spot-merchandizing flexibility
  • Modular refrigeration systems capable of supporting small lines of cases sharing similar characteristics

Distributed architectures also have a greater impact on the way controls are set up and utilized. In a distributed scenario, electronic controllers are installed at the refrigeration cases. Additional sensors are typically required to capture data, allow for better control, and support remote troubleshooting activities.

Standardize your footprint

When adding smaller-format stores to an enterprise network, it may not be in your best interest to introduce a completely new refrigeration and controls platform. For retailers with multi-site networks of large- and small-format stores, it’s especially important to select refrigeration architectures and control platforms that provide a standardized view.

When evaluating refrigeration options, look for platforms that support the evolution of internet of things (IoT) in refrigeration and facility management. These systems represent the next generation of operational efficiencies by offering cloud connectivity, predictive maintenance and advanced multi-site management software.

 

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