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Federal Register / Vol. 86, No. 164 / Friday, August 27, 2021 / Proposed Rules procedure 42 U.S.C. 6316a; 42 U.S.C.
6295o2Biii.
EPCA also contains what is known as an anti-backsliding provision, which prevents the Secretary from prescribing any amended standard that either increases the maximum allowable energy use or decreases the minimum required energy efficiency of a covered equipment 42 U.S.C. 6316a; 42 U.S.C.
6295o1. Also, the Secretary may not prescribe an amended or new standard if interested persons have established by a preponderance of the evidence that the standard is likely to result in the unavailability in the United States in any covered equipment type or class of performance characteristics including reliability, features, sizes, capacities, and volumes that are substantially the same as those generally available in the United States 42 U.S.C. 6316a; 42
U.S.C. 6295o4.
Additionally, EPCA specifies requirements when promulgating an energy conservation standard for covered equipment that has two or more subcategories. DOE must specify a
different standard level for a type or class of product that has the same function or intended use, if DOE
determines that products within such group: A Consume a different kind of energy from that consumed by other covered products within such type or class; or B have a capacity or other performance-related feature which other products within such type or class do not have and such feature justifies a higher or lower standard 42 U.S.C.
6316a; 42 U.S.C. 6295q1. In determining whether a performancerelated feature justifies a different standard for a group of equipment, DOE
must consider such factors as the utility to the consumer of the feature and other factors DOE deems appropriate. Id. Any rule prescribing such a standard must include an explanation of the basis on which such higher or lower level was established 42 U.S.C. 6316a; 42 U.S.C.
6295q2.
Before proposing a standard, DOE
seeks public input on the analytical framework, models, and tools that DOE
intends to use to evaluate standards for
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the equipment at issue and the results of preliminary analyses DOE performed for the equipment.
DOE is examining whether to amend the current standards pursuant to its obligations under EPCA. This notification announces the availability of the preliminary TSD, which details the preliminary analyses and summarizes the preliminary results of DOEs analyses. In addition, DOE is announcing a public webinar to solicit feedback from interested parties on its analytical framework, models, and preliminary results.
II. Background A. Current Standards In a final rule published on April 18, 2013 April 2013 Standards Final Rule, DOE prescribed the current energy conservation standards for distribution transformers manufactured on and after January 1, 2016. 78 FR
23336, 23433. These standards are set forth in DOEs regulations at 10 CFR
431.196 and are repeated in Table II.1, Table II.2, Table II.3 of this document.

TABLE II.1FEDERAL ENERGY CONSERVATION STANDARDS FOR LOW-VOLTAGE DRY-TYPE DISTRIBUTION TRANSFORMERS
Single-phase
Three-phase Efficiency %

kVA
15
25
37.5
50
75
100
167
250
333

97.70
98.00
98.20
98.30
98.50
98.60
98.70
98.80
98.90

Efficiency %

kVA
15
30
45
75
112.5
150
225
300
500
750
1,000

97.89
98.23
98.40
98.60
98.74
98.83
98.94
99.02
99.14
99.23
99.28

TABLE II.2FEDERAL ENERGY CONSERVATION STANDARDS FOR LIQUID-IMMERSED DISTRIBUTION TRANSFORMERS
Single-phase
Three-phase Efficiency %

lotter on DSK11XQN23PROD with PROPOSALS1

kVA
10
15
25
37.5
50
75
100
167
250
333
500
667
833

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16:25 Aug 26, 2021

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98.70
98.82
98.95
99.05
99.11
99.19
99.25
99.33
99.39
99.43
99.49
99.52
99.55

Fmt 4702

Efficiency %

kVA
15
30
45
75
112.5
150
225
300
500
750
1,000
1,500
2,000
2,500

Sfmt 4702

E:FRFM27AUP1.SGM

27AUP1

98.65
98.83
98.92
99.03
99.11
99.16
99.23
99.27
99.35
99.40
99.43
99.48
99.51
99.52