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Federal Register / Vol. 86, No. 134 / Friday, July 16, 2021 / Proposed Rules state of the market due to adoption of more stringent efficiency standards.
Next, DOE examined the ratings for walk-in refrigeration systems reported
in DOEs CCMS.21 The number of models at or above the current standards are shown in Table II.4. These data show the count of models distributed in
commerce with their respective efficiency ratings; however, these data do not indicate the volume of shipments of each model.

TABLE II.4DISTRIBUTION OF EFFICIENCIES FOR REFRIGERATION SYSTEMS
Count of models
Equipment class UC.L
DC.L.O
DC.L.I
UC.M
DC.M.O
DC.M.I

In the June 2014 ECS final rule DOE
assumed that: 1 All panels and nondisplay door shipments were at the baseline; 2 25 percent of display lowtemperature door shipments were at the baseline, with the remaining 75 percent at a higher efficiency 45 percent were assumed to have light emitting diode LED lighting, corresponding to the first design option above the baseline in the engineering analysis, and 30 percent were assumed to have LED lighting plus
anti-sweat heater wire controls, corresponding to the second design option above the baseline; and 3 80
percent of medium-temperature display doors shipments were at baseline and the remaining 20 percent would have LED lighting, corresponding to the first design option above the baseline for low-temperature display doors. 79 FR
32050, 32087. DOE understands that these assumptions may not reflect the current state of the market due to
Count of models at baseline
3,899
1,780
877
5,228
2,722
1,145

Percent of models at baseline
1,618
1,438
825
3,222
2,057
956

41
81
94
62
76
83

adoption of more stringent efficiency standards.
Next, DOE examined the ratings for walk-in doors and panels reported in the CCMS. The number of models at or above the current standards are shown in Table II.5.22 Again, these data show the count of models distributed in commerce with their respective efficiency ratings; however, these data do not indicate the volume of shipments of each model.

TABLE II.5DISTRIBUTION OF EFFICIENCIES FOR PANELS AND DOORS
Count of models
Equipment class
jbell on DSKJLSW7X2PROD with PROPOSALS

DD.M
DD.L
PD.M
PD.F
FD.M
FD.L
SP.M
SP.L
FP.L

Issue 8: DOE seeks data and information regarding the current, and projected future market shares of WICF
equipment by efficiency level e.g., expressed in terms of increments of 10
percent improvement in AWEF, Rvalues, and kWh/day for refrigeration systems, panels, and doors, respectively, above or below the existing standards in 10 CFR 431.306 to establish market trends in equipment efficiency over time. DOE also seeks information on how the current regulatory environment has affected the market share of WICF
equipment by efficiency rating.
21 Please
see footnote 15.
Department of Energys Compliance Certification Database, www.regulations.doe.gov/
certification-data/CCMS-4-Walk-In_Coolers_and_
Freezers_-_Doors.htmlq=Product_Group_
s%3A%22Walk22 U.S.

VerDate Sep<11>2014

16:52 Jul 15, 2021

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Count of models at baseline
2,861
1,213
1,872
1,124
631
274
87
98
77

Percent of models at baseline
2,785
1,108
334
604
0 95
14
50
13

97
91
18
54
0 35
16
51
17

C. Technological Feasibility During the June 2014 ECS final rule and July 2017 ECS final rule, DOE
considered a number of technologies for reducing walk-in cooler and freezer energy consumption.23 DOE is interested in understanding any technology improvements for walk-in doors, panels, and refrigeration systems since the previous energy standards rulemaking. Additionally, DOE is interested in any changes to the technologies it evaluated in the rulemakings for the June 2014 ECS final rule and July 2017 ECS final rule that
may affect whether DOE could propose a no-new-standards determination, such as an insignificant increase in the range of efficiencies and performance characteristics of these technologies.
While DOE is particularly interested in comment, information, and data on the following issues, this request for information is not strictly limited to them.

In%20Coolers%20and%20Freezers%20%20Doors%22; and www.regulations.doe.gov/
certification-data/CCMS-4-Walk-In_Coolers_and_
Freezers_-_Panels.htmlq=Product_Group_
s%3A%22WalkIn%20Coolers%20and%20Freezers%20%20Panels%22, Last Accessed: March 17, 2021.

23 For a complete list of technology options analyzed during the June 2014 and July 2017 ECS
final rules, see chapter 3 of TSD for each rulemaking. Docket EERE2008BTSTD0015
0131 June 2014 and Docket EERE2015BTSTD
00160099 July 2017.

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1. Doors and Panels a. Technology Options A complete list of options evaluated in preparation for the June 2014 ECS

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