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[Federal Register Volume 77, Number 37 (Friday, February 24, 2012)]
[Proposed Rules]
[Pages 10997-11001]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-3987]

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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.

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SUMMARY: The U.S. Department of Energy (DOE) published a notice of 
proposed rulemaking on February 10, 2012, which proposed to amend DOE 
regulations regarding 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: James 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. Email: 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. Email: 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), Public Law 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), Public Law 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), Public Law 109-25, amended EPCA to establish energy 
conservation standards for low-voltage, dry-type distribution 
transformers. (42 U.S.C. 6295(y)) On February 10, 2012, DOE published a 
proposed rule with amended energy conservation standards for liquid-
immersed, 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:

 Table I.5--Proposed Electrical Efficiencies for All Liquid-Immersed Distribution Transformer Equipment Classes
                                      (Compliance Starting January 1, 2016)
----------------------------------------------------------------------------------------------------------------
                                      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

[[Page 10998]]

 
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           0.0         71.5         17.6         36.2         36.2         93.4
 LCC (%)..........................
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:

                      Table V.20--Rebuttable-Presumption Payback Periods (Years) for Low-Voltage Dry-Type Distribution Transformers
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                               Trial standard level
               Design line                Rated 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
----------------------------------------------------------------------------------------------------------------

[[Page 10999]]

    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.
Industry 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 (%)....................  041*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, Sec.  431.196, the ``%'' headings in the 
second row of the tables in paragraphs (a)(1) and (a)(2) are corrected 
to read as ``Efficiency (%)''.
    8. On page 7380, Sec.  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                                              Three-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
500...........................................           99.42  1000............................           99.36
667...........................................           99.46  1500............................           99.42
833...........................................           99.49  2000............................           99.46

[[Page 11000]]

 
                                                                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 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
----------------------------------------------------------------------------------------------------------------
                      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, Sec.  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 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
----------------------------------------------------------------------------------------------------------------
                        Efficiency   Efficiency   Efficiency                Efficiency   Efficiency   Efficiency
         kVA               (%)          (%)          (%)          kVA          (%)          (%)          (%)
----------------------------------------------------------------------------------------------------------------
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

[[Page 11001]]

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
----------------------------------------------------------------------------------------------------------------
                        Efficiency   Efficiency   Efficiency                Efficiency   Efficiency   Efficiency
         kVA               (%)          (%)          (%)          kVA          (%)          (%)          (%)
----------------------------------------------------------------------------------------------------------------
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        98.13  ...........
75...................        98.73        98.57        98.53        112.5        98.52        98.36  ...........
100..................        98.82        98.67        98.63          150        98.65        98.51  ...........
167..................        98.96        98.83        98.80          225        98.82        98.69        98.57
250..................        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
500..................        99.22        99.12        99.09          750        99.21        99.12        99.02
667..................        99.27        99.18        99.15         1000        99.28        99.20        99.11
833..................        99.31        99.23        99.20         1500        99.37        99.30        99.21
                       ...........  ...........  ...........         2000        99.43        99.36        99.28
                       ...........  ...........  ...........         2500        99.47        99.41        99.33
----------------------------------------------------------------------------------------------------------------
* 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.

    Issued in Washington, DC, on February 15, 2012.
Kathleen B. Hogan,
Deputy Assistant Secretary, Energy Efficiency and Renewable Energy.
[FR Doc. 2012-3987 Filed 2-23-12; 8:45 am]
BILLING CODE 6450-01-P
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