This document is a correction to the Department of Energy’s notice of proposed rulemaking: Energy Conservation Standards for Distribution Transformers, a rulemaking action issued by the Department of Energy. Though it is not intended or expected, should any discrepancy occur between the attached document and the document published in the Federal Register, the Federal Register publication con trols. This document is being made available solely as a means to facilitate the public's access to this document.[6450-01- P]

DEPARTMENT OF ENERGY

10 CFR Part 431

[Docket Number EERE

– 2010

– BT

– STD

– 0048]

RIN: 1904-AC04

Energy Conservation Program: Energy Conservation Standards for Distribution

Transformers; Correction

AGENCY: Office of Energy Efficiency and Renewable Energy, Department of Energy.

ACTION Notice of proposed rulemaking and public meeting; correction.

SUMMARY: The U.S. Department of Energy (DOE) published a notice of proposed

rulemaking on February 10, 2012, which proposed to amend DOE regulations regardi ng

energy conservation standards for distribution transformers. It was recently discovered

that values in certain tables of the proposed rule are inaccurate or absent. This notice

corrects these inaccuracies as described.

DATES: DOE will accept comments, data and information regarding this correction

before and after the February 23, 2012, public meeting, but no later than April 10, 2012.

FOR FURTHER INFORMATION CONTACT:

1James Raba, U.S. Department of Energy, Office of Energy Efficiency and

Renewable Energy, Building Technologies Program, EE-2J, 1000 Independence Avenue,

SW., Washington, DC, 20585-0121. Telephone: (202) 586-8654. E-mail:

Jim.Raba@ee.doe.gov

.

Ami Grace-Tardy, U.S. Department of Energy, Office of the General Counsel,

GC -71, 1000 Independence Avenue, SW., Washington, DC, 20585-0121. Telephone:

(202) 586-5709. E-mail: Ami.Grace-Tardy@hq.doe.gov

.

SUPPLEMENTARY INFORMATION:

Background

Title III, Part B of the Energy Policy and Conservation Act of 1975 (EPCA or the

Act), Pub. L. 94-163 (42 U.S.C. 6291-6309, as codified), established the Energy

Conservation Program for “Consumer Products Other Than Automobiles.” Part C of Title

III of EPCA (42 U.S.C. 6311

– 6317) established a similar program for “ Certain Industrial

Equipment, ” including distribution transformers. The Energy Policy Act of 1992

(EPACT 1992), Pub. L. 102-486, amended EPCA and directed DOE to prescribe energy

conservation standards for distribution transformers. (42 U.S.C. 6317(a)) On October 12,

2007, DOE published a final rule that established energy conservation standards for

liquid-immersed distribution transformers and medium-voltage, dry-type distribution

transformers (72 FR 58190). The Energy Policy Act of 2005 (EPACT 2005), Pub. L.

109-25, amended EPCA to establish energy conservation standards for low-voltage, drytype distribution transformers. (42 U.S.C. 6295(y)) On February 10, 2012, DOE

2published a proposed rule with amended energy conservation standards for liquidimmersed, medium-voltage dry-type, and low-voltage, dry-type distribution transformers

(77 FR 7282).

Need for Correction

As published, values in certain tables of the proposed rule are inaccurate or

absent. DOE solicits public comment on the changes contained in this document as part

of the February 10 NOPR.

Corrections

In proposed rule FR Doc. 2012

– 2642 appearing on page 7282 in the issue of

Friday, February 10, 2012, the following corrections should be made:

1. On page 7285, Table I.5 is corrected to read as follows:

3Table I.5. Proposed Electrical Efficiencies for all Liquid-Immersed Distribution Transformer Equipment Classes (Compliance Starting January 1, 2016) Standards by kVA and Equipment Class

E quipment Class 1 Equipment Class 2
kVA % kVA %

10 98.70 15 98.65

15 98.82 30 98.83

25 98.95 45 98.92
37.5 99.05 75 99.03

50 99.11 112.5 99.11

75 99.19 150 99.16

100 99.25 225 99.23
167 99.33 300 99.27
250 99.39 500 99.35
333 99.43 750 99.40
500 99.49 1000 99.43
667 99.52 1500 99.48
833 99.55 2000 99.51

2500 99.53

2. On page 7344, Table V.9 is corrected to read as follows:

Table V.9. Summary Life-Cycle Cost and Payback Period Results for Design Line 6 Representative Unit

Trial Standard Level

1 2 3 4 5 6 Efficiency (%) 98.00 98.60 98.80 99.17 99.17 99.44
Transformers with Net Increase in LCC (%) 0.0 71.5 17.6 36.2 36.2 93.4

Transformers with Net LCC Savings (%) 0.0 28.5 82.4 63.8 63.8 6.6

Transformers with No Impact on LCC (%) 100. 0 0.0 0.0 0.0 0.0 0.0

Mean LCC Savings ($) 0

- 125 303 187 187

- 881 Median PBP (Years) 0.0 24.7 12.8 16.3 16.3 32.4

3. On page 7346, Table V.20 is corrected to read as follows:

4Table V.20 Rebuttable-Presumption Payback Periods (years) for Low-Voltage DryType Distribution Transformers

Design Rated Trial Standard Level

Line Capacity (kVA) 1 2 3 4 5 6

6 25 0.0 15.9 13.5 15.0 15.0 26.5

7 75 4.2 4.2 4.4 6.4 6.4 14.9

8 300 6.8 6.8 10.4 9.7 20.2 20.2

4. On page 7363, Table V.39 is corrected to read as follows:

Table V.39 Proposed Energy Conservation Standards for Liquid-Immersed
Distribution Transformers Standards by kVA and Equipment Class Equipment Class 1 Equipment Class 2
kVA % kVA %

10 98.70 15 98.65

15 98.82 30 98.83

25 98.95 45 98.92
37 .5 99.05 75 99.03

50 99.11 112.5 99.11

75 99.19 150 99.16
100 99.25 225 99.23
167 99.33 300 99.27
250 99.39 500 99.35
333 99.43 750 99.40
500 99.49 1000 99.43

667 99.52 1500 99.48
833 99.55 2000 99.51
2500 99.53

5. On pages 7363 and 7364, Table V.41 is corrected to read as follows:

Table V. 41 Summary of Analytical Results for Low-Voltage, Dry-Type Distribution Transformers: Manufacturer and Consumer Impacts

Category TSL 1 TSL 2 TSL 3 TSL 4 TSL 5 TSL 6
Manufacturer Impacts Industry NPV (2011$ million) 203 to
236 200 to
235 193 to
240 173 to
250 164 to
263 136 to
322

5Industry NPV (% change) (7.7) to

7.7 (8.9) to
6.8 (12.2)
to 9.1 (21.0)
to 14.1 (25.2)
to 20.0 (37.9)
to 46.4 Consumer Mean LCC Savings (2010$)
Design line 6 0

- 125 303 187 187

- 881
Design line 7 1714 1714 1793 2270 2270 270
Design line 8 2476 2476 2625 4145

- 2812

- 2812
Consumer Median PBP (years)
Design line 6 0.0 24.7 12.8 16.3 16.3 32.4
Design line 7 4.5 4.5 4.7 6.9 6.9 18.1
Design line 8 8.4 8.4 12.3 11.0 24.5 24.5
Distribution of Consumer LCC Impacts
Design line 6
Net Cost (%) 0.0 71.5 17.6 36.2 36.2 93.4
Net Benefit (%) 0.0 28.5 82.4 63.8 63.8 6.6
No Impact (%) 100.0 0.0 0.0 0.0 0.0 0.0
Design line 7
Net Cost (%) 1.8 1.8 2.0 3.7 3.7 46.4
Net Benefit (%) 98 .2 98.2 98.0 96.3 96.3 53.6
No Impact (%) 0.0 0.0 0.0 0.0 0.0 0.0
Design line 8
Net Cost (%) 5.2 5.2 15.3 10.5 78.5 78.5
Net Benefit (%) 94.8 94.8 84.7 89.5 21.5 21.5
No Impact (%) 0.0 0.0 0.0 0.0 0.0 0.0

6. The first sentence on page 7365, column 1, paragraph 7 is corrected to read as

follows:

“At TSL 3, the average LCC impact ranges from $303 for design line 6 to

$2,625 for design line 8. The median PBP ranges from 12.8 years for design line 6 to 4.7

years for design line 7”.

7. On pages 7379 and 7380, §431.196, the “%” headings in the second row of the

tables in paragraphs (a)(1) and (a)(2) are corrected to read as “Efficiency (%)”.

68. On page 7380, §431.196, interchange the tables in paragraphs (b)(1) and (b)(2)

to read as follows:

(b ) Liquid-Immersed Distribution Transformers.

(1) The efficiency of a liquid-immersed distribution transformer manufactured on

or after January 1, 2010, but before January 1, 2016, shall be no less than that required

for their kVA rating in the table below. Liquid-immersed distribution transformers with

kVA ratings not appearing in the table shall have their minimum efficiency level

determined by linear interpolation of the kVA and efficiency values immediately above

and below that kVA rating.

Single

- Phase T hree

- Phase
kVA Efficiency (%) kVA Efficiency (%)

10 98.62 15 98.36

15 98.76 30 98.62

25 98.91 45 98.76
37.5 99.01 75 98.91

50 99.08 112.5 99.01

75 99.17 150 99.08
100 99.23 225 99.17
167 99.25 300 99.23

250 99.32 500 99.25
333 99.36 750 99.32

5 00 99.42 1000 99.36
667 99.46 1500 99.42
833 99.49 2000 99.46
2500 99.49 Note: All efficiency values are at 50 percent of nameplate-rated load, determined according to the DOE Test- Procedure. 10 CFR Part 431, Subpart K, Appendix A.

(2) The efficiency of a liquid-immersed distribution transformer manufactured on

or after January 1, 2016, shall be no less than that required for their kVA rating in the

table below. Liquid-immersed distribution transformers with kVA ratings not appearing

7in the table shall have their minimum efficiency level determined by linear interpolation

of the kVA and efficiency values immediately above and below that kVA rating.

Single

- Phase Three

- Phase
kVA Efficiency ( % ) kVA Efficiency (%)

10 98.70 15 98.65

15 98.82 30 98. 83

25 98.95 45 98.92
37.5 99.05 75 99.03

50 99.11 112.5 99.11

75 99.19 150 99.16
100 99.25 225 99.23

167 99.33 300 99.27
250 99.39 500 99.35
333 99.43 750 99.40
500 99.49 1000 99.43
667 99.52 1500 99.48
833 99.55 2000 99.51
2500 99.53 Note: All efficiency values are at 50 percent of nameplate-rated load, determined according to the DOE Test- Procedure. 10 CFR Part 431, Subpart K, Appendix A.

9. On pages 7380 and 7381, §431.196, interchange the tables in paragraphs (c)(1)

and (c)(2) to read as follows:

(c) Medium-Voltage Dry-Type Distribution Transformers.

(1) The efficiency of a medium- voltage dry-type distribution transformer

manufactured on or after January 1, 2010, but before January 1, 2016, shall be no less

than that required for their kVA and BIL rating in the table below. Medium-voltage drytype distribution transformers with kVA ratings not appearing in the table shall have their

8minimum efficiency level determined by linear interpolation of the kVA and efficiency

values immediately above and below that kVA rating.

Single

- Phase Three

- Phase

BIL* 20

– 45 kV 46

– 95 kV ≥96 kV BIL* 20

– 45 kV 46

– 95 kV ≥96 kV

kVA Efficiency (%) Efficiency (%) Efficiency (%) kVA Efficiency (%) Efficiency (%) Efficiency (%)

15 98.10 97.86

- 15 97.50 97.18

- 25 98.33 98.12

- 30 97.90 97.63

- 37.5 98.49 98.30

- 45 98.10 97.86

-

50 98.60 98. 42

- 75 98.33 98.12

- 75 98.73 98.57 98.53 112.5 98.49 98.30

- 100 98.82 98.67 98.63 150 98.60 98.42

- 167 98.96 98.83 98.80 225 98.73 98.57 98.53

250 99.07 98.95 98.91 300 98.82 98.67 98.63

333 99.14 99.03 98.99 500 98.96 98.83 98.80

500 99.22 99.12 99.09 750 99.07 98.95 98.91

667 99.27 99.18 99.15 1000 99.14 99.03 98.99

833 99.31 99.23 99.20 1500 99.22 99.12 99.09

2000 99.27 99.18 99.15

2500 99.31 99.23 99.20 *BIL means basic impulse insulation level

Note: All efficiency values are at 50 percent of nameplate rated load, determined according to the DOE Test- Procedure. 10 CFR Part 431, Subpart K, Appendix A.

(2) The efficiency of a medium- voltage dry-type distribution transformer

manufactured on or after January 1, 2016, shall be no less than that required for their

kVA and BIL rating in the table below. Medium-voltage dry-type distribution

transformers with kVA ratings not appearing in the table shall have their minimum

efficiency level determined by linear interpolation of the kVA and efficiency values

immediately above and below that kVA rating.

Single

- Phase Three

- Phase

BIL* 20

– 45 kV 46

– 95 kV ≥96 kV BIL* 20

– 45 kV 46

– 95 kV ≥96 kV

kVA Efficiency (%) Efficiency (%) Efficiency (%) kVA Efficiency (%) Efficiency (%) Efficiency (%)

91 5 98.10 9 7. 86



# - 1 5 9 7. 50 97.18



# - 25 98.33 98.12



# - 30 97.90 97.63



# - 37.5 98.49 98.30



# - 45 98.10 97.86

-

50 98.60 98.42

- 75 98

. 33 98.13



# - 75 98.73 98

. 57 98.53 112. 5 98.52 98.36

- 100 98.82 98.67 98.63 150 98

. 65 98.5 1

- 16 7 98.96 98.83 98.80 225 98.82 98.69 98.57

2 5 0 99.07 98.95 98.91 300 98

. 93 98.81 98.69

333 99.14 99.03 98.99 500 99.09 98.99 98.89 

### SOO 99.22 99.12 99.09 750 99

. 2 1 99.12 99.02

66 7 99.27 99.18 99.15 100 0 99.28 99.20 99. 1 1

833 99.31 99.23 99.20 IS00 99.37 99.30 99.21

2 000 99.43 99.36 99.28

2500 99

. 47 99.41 99.33



### .. • BlL means bas I c I mp ulse Ins ul atio n level

Note: All efficiency values arc at 50 percent of nameplate rated load, determined according to
the DOE Te st

- Procedure. 10 CFR Part 431, Subpart K
, Appendix A.

Is sued in Washington
, DC
, on february 1 5,2012.

### Ka~.Hogan Dep u ty Ass i stant Secr e tary Energy Effici enc y and Renewable Ener g y

10