8-A-i

APPENDIX 8-A. ADDITIONAL TRIAL STANDARD LEVEL TO THE

SUPPLEMENTAL POST-NOTICE OF PROPOSED RULEMAKING ANALYSES FOR 

DISTRIBUTION TRANSFORMERS

TABLE OF CONTENTS

8-B.1 INTRODUCTION .................................................................................................8-A-1

8-B.2 ADDITIONAL NATIONAL IMPACTS ANALYSIS RESULTS .......................8-A-2

8-B.2.1 Summary National Impact Analysis Results .........................................................8-A-2

8-B.2.2 Summary National Impact Analysis Results for Single-phase Liquidimmersed Distribution Transformers.....................................................................8-A-2

8-B.2.3 Summary National Impact Analysis Results for Three-phase Liquid-immersed 

Distribution Transformers......................................................................................8-A-4

LIST OF TABLES

Table 8-B.1.1 Notice of Proposed Rulemaking Trial Standard Levels for LiquidImmersed Distribution Transformers.........................................................8-A-1

Table 8-B.1.2 Notice of Public Meeting Trial Standard Level for Liquid-immersed 

Distribution Transformers..........................................................................8-A-1

Table 8-B.2.1 National Impact Analysis Results for Liquid-immersed Transformers.....8-A-2

Table 8-B.2.2 Results for Notice of Proposed Rulemaking Equipment Class 1 ..............8-A-2

Table 8-B.2.3 Results for Notice of Public Meeting Equipment Class 1A ......................8-A-3

Table 8-B.2.4 Results for Notice of Pubic Meeting Equipment Class 1B – Polemounted Distribution Transformer ............................................................8-A-3

Table 8-B.2.5 Results for Notice of Proposed Rulemaking Equipment Class 2 ..............8-A-4

Table 8-B.2.6 Results for Notice of Public Meeting Equipment Class 2A ......................8-A-4

Table 8-B.2.7 Results for Notice of Public Meeting Equipment Class 2B – Polemounted Distribution Transformers...........................................................8-A-5
8-A-1

APPENDIX 8-B. ADDITIONAL TRIAL STANDARD LEVEL TO THE 

SUPPLEMENTAL POST-NOTICE OF PROPOSED RULEMAKING ANALYSES FOR 

DISTRIBUTION TRANSFORMERS

8-B.1 INTRODUCTION

DOE presented analysis for liquid-immersed distribution transformers for a series of trial 

standard levels (TSLs) in the NOPR and at the NOPR public meeting. The proposed TSL 

composition for liquid-immersed transformers is shown below in Table 1-B.1.1. These TSL are 

described in detail in the chapter 10 of the NOPR TSD.

Table 8-B.1.1 Notice of Proposed Rulemaking Trial Standard Levels for LiquidImmersed Distribution Transformers

EC DL Trial Standard Levels by Efficiency Level

TSL 1 TSL 2 TSL 3 TSL 4 TSL 5 TSL 6 TSL 7

1 1 EL 1 EL 1 EL 1 EL 2 EL 3 EL 4 EL 6

1 2 Base EL 1 EL 1 EL 2 EL 3 EL 4 EL 6

1 3 EL 1 EL 1 EL 2 EL 4 EL 3 EL 5 EL 7

2 4 EL 1 EL 1 EL 1 EL 2 EL 3 EL 4 EL 7

2 5 EL 1 EL 1 EL 2 EL 4 EL 3 EL 5 EL 6

DOE is presenting one additional TSL, TSL D, in addition to those presented in appendix 

1A of this NOPR TSD. Table 8-B.1.2 shows the efficiency level composition of TSL D in 

addition to those presented in appendix 1A.

Table 8-B.1.2 Notice of Public Meeting Trial Standard Level for Liquid-immersed 

Distribution Transformers

EC DL Phases Type Trial Standard Levels by Efficiency Level

A B C D

1A 1 1 all other EL 1 EL 1.5 EL 2 EL 2

1B 2 1 pole EL 0.5 EL 0.5 EL 2 El 1

1B 3 1 pole EL 1 EL 1 EL 2 El 1

2A 4 3 all other EL 1 EL 1.5 EL 2 EL 2

2A 5 3 all other EL 1 EL 1.5 EL 2 EL 2

2B - 3 pole scaled scaled scaled scaled

2C - 3 network/vault EL 0 EL 0 EL 0 EL 0

2D - 3 ≥ 200 kV BIL EL 0 EL 0 EL 0 EL 0
8-A-2

8-B.2 ADDITIONAL NATIONAL IMPACTS ANALYSIS RESULTS

As described in appendix 1A of this NOPR TSD, the national impacts analysis results 

present here were estimated using the NOPR spreadsheet tool available from the DOE website.a

To disaggregate the impacts of pole-mounted transformers from the other liquid-immersed 

distribution transformers represented by the equipment classes in the NOPR. DOE associated 

the fraction of savings with the volume of capacity shipment for each of the new proposed 

equipment classes. DOE assumed that 70% of shipments by capacity of single-phase liquidimmersed distribution transformers are pole-mounted, and that 5% of shipments by capacity of

three-phase liquid-immersed distribution transformers are pole-mounted.

8-B.2.1 Summary National Impact Analysis Results

Table 8-B.2.1 National Impact Analysis Results for Liquid-immersed Transformers

NOPR Trial Standard Level NOPM Trial Standard 

Level

Base 1 2 3 4 5 6 7 A B C D

Transformer Shipments 

2015-2044 (Billion KVA) 1.95 1.95 1.95 1.95 1.94 1.94 1.94 1.91 1.95 1.95 1.95 1.95

Equipment Cost ($Billions) 32.28 -1.26 -2.51 -2.61 -4.26 -4.48 -6.32 -19.88 -1.57 -2.00 -3.72 -3.28

Operating Cost (Savings in 

TSLs) ($Billions) 23.26 2.01 4.03 4.33 7.22 7.13 8.08 11.64 2.50 3.21 6.71 6.28

Cumulative Source Savings 

2044 (Quads) 0.36 0.74 0.82 1.44 1.42 1.70 2.70 0.45 0.60 1.30 1.20

Net Present Value at 3% 

Discount Rate ($Billions) 3.66 7.39 8.24 14.21 13.48 13.17 -1.11 4.66 6.04 13.51 12.93

Net Present Value at 7% 

Discount Rate ($Billions) 0.75 1.51 1.73 2.96 2.65 1.76 -8.25 0.93 1.21 2.99 3.00

8-B.2.2 Summary National Impact Analysis Results for Single-phase Liquid-immersed 

Distribution Transformers

Table 8-B.2.2 Results for Notice of Proposed Rulemaking Equipment Class 1

NOPR Trial Standard Level

NOPM Trial Standard 

Level

Base 1 2 3 4 5 6 7 A B C D

Transformer Shipments 

2015-2044 (Billion KVA) 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.79 0.80 0.80 0.80 0.80

Equipment Cost ($Billions) 22.36 -0.52 -1.78 -1.79 -2.61 -3.03 -4.05 -12.11 -0.84 -1.13 -2.60 -2.16

Operating Cost (Savings in 

TSLs) ($Billions) 11.37 0.34 2.36 2.38 3.76 3.89 4.23 5.84 0.78 1.23 3.69 3.26

 

a http://www.eere.energy.gov/buildings/appliance_standards/commercial/distribution_transformers.html
8-A-3

Cumulative Source Savings 

2044 (Quads) 0.09 0.47 0.47 0.75 0.80 0.90 1.37 0.18 0.27 0.75 0.65

Net Present Value at 3% 

Discount Rate ($Billions) 0.13 3.87 3.93 6.64 6.28 5.51 -4.64 0.94 1.78 6.44 5.86

Net Present Value at 7% 

Discount Rate ($Billions) -0.19 0.58 0.60 1.15 0.85 0.19 -6.27 -0.06 0.10 1.09 1.10

Table 8-B.2.3 Results for Notice of Public Meeting Equipment Class 1A

Trial Standard Level NOPM Trial Standard Level

Base 1 2 3 4 5 6 7 A B C D

Transformer Shipments 

2015-2044 (Billion KVA) 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24

Equipment Cost ($Billions) 6.71 -0.16 -0.53 -0.54 -0.78 -0.91 -1.21 -3.63 -0.25 -0.34 -0.78 -0.65

Operating Cost (Savings in 

TSLs) ($Billions) 3.41 0.10 0.71 0.72 1.13 1.17 1.27 1.75 0.23 0.37 1.11 0.98

Cumulative Source Savings 

2044 (Quads) 0.03 0.14 0.14 0.23 0.24 0.27 0.41 0.05 0.08 0.22 0.19

Net Present Value at 3% 

Discount Rate ($Billions) 0.04 1.16 1.18 1.99 1.88 1.65 -1.39 0.28 0.53 1.93 1.76

Net Present Value at 7% 

Discount Rate ($Billions) -0.06 0.17 0.18 0.34 0.26 0.06 -1.88 -0.02 0.03 0.33 0.33

Table 8-B.2.4 Results for Notice of Pubic Meeting Equipment Class 1B – Pole-mounted 

Distribution Transformer

Trial Standard Level NOPM Trial Standard Level

Base 1 2 3 4 5 6 7 A B C D

Transformer Shipments 

2015-2044 (Billion KVA) 0.56 0.56 0.56 0.56 0.56 0.56 0.56 0.55 0.56 0.56 0.56 0.56

Equipment Cost ($Billions) 15.65 -0.37 -1.25 -1.25 -1.83 -2.12 -2.83 -8.48 -0.59 -0.79 -1.82 -1.51

Operating Cost (Savings in 

TSLs) ($Billions) 7.96 0.24 1.65 1.67 2.63 2.72 2.96 4.09 0.55 0.86 2.58 2.28

Cumulative Source Savings 

2044 (Quads) 0.07 0.33 0.33 0.53 0.56 0.63 0.96 0.13 0.19 0.52 0.45

Net Present Value at 3% 

Discount Rate ($Billions) 0.09 2.71 2.75 4.65 4.40 3.85 -3.25 0.66 1.24 4.51 4.10

Net Present Value at 7% 

Discount Rate ($Billions) -0.13 0.41 0.42 0.80 0.60 0.13 -4.39 -0.04 0.07 0.77 0.77
8-A-4

8-B.2.3 Summary National Impact Analysis Results for Three-phase Liquid-immersed 

Distribution Transformers

Table 8-B.2.5 Results for Notice of Proposed Rulemaking Equipment Class 2

NOPR Trial Standard Level NOPM Trial Standard Level

Base 1 2 3 4 5 6 7 A B C D

Transformer Shipments 

2015-2044 (Billion KVA) 1.15 1.15 1.15 1.15 1.15 1.15 1.14 1.13 1.15 1.15 1.15 1.15

Equipment Cost ($Billions) 9.92 -0.73 -0.73 -0.82 -1.65 -1.45 -2.27 -7.78 -0.73 -0.87 -1.12 -1.12

Operating Cost (Savings in 

TSLs) ($Billions) 11.88 1.67 1.67 1.95 3.46 3.25 3.84 5.80 1.72 1.98 3.01 3.01

Cumulative Source Savings 

2044 (Quads) 0.27 0.27 0.35 0.69 0.63 0.80 1.33 0.27 0.33 0.55 0.55

Net Present Value at 3% 

Discount Rate ($Billions) 3.53 3.53 4.31 7.57 7.21 7.66 3.53 3.71 4.26 7.07 7.07

Net Present Value at 7% 

Discount Rate ($Billions) 0.94 0.94 1.13 1.82 1.80 1.57 -1.98 0.99 1.11 1.90 1.90

Table 8-B.2.6 Results for Notice of Public Meeting Equipment Class 2A

Trial Standard Level NOPM Trial Standard Level

Base 1 2 3 4 5 6 7 A B C D

Transformer Shipments 

2015-2044 (Billion KVA) 1.10 1.09 1.09 1.09 1.09 1.09 1.09 1.07 1.09 1.09 1.09 1.09

Equipment Cost ($Billions) 9.42 -0.70 -0.70 -0.78 -1.57 -1.38 -2.16 -7.39 -0.70 -0.83 -1.06 -1.06

Operating Cost (Savings in 

TSLs) ($Billions) 11.29 1.58 1.58 1.85 3.29 3.08 3.65 5.51 1.64 1.88 2.86 2.86

Cumulative Source Savings 

2044 (Quads) 0.26 0.26 0.33 0.65 0.60 0.76 1.26 0.26 0.31 0.53 0.53

Net Present Value at 3% 

Discount Rate ($Billions) 3.35 3.35 4.10 7.19 6.85 7.28 3.35 3.53 4.05 6.72 6.72

Net Present Value at 7% 

Discount Rate ($Billions) 0.89 0.89 1.07 1.72 1.71 1.49 -1.88 0.94 1.05 1.80 1.80
8-A-5

Table 8-B.2.7 Results for Notice of Public Meeting Equipment Class 2B – Polemounted Distribution Transformers

Trial Standard Level NOPM Trial Standard Level

Base 1 2 3 4 5 6 7 A B C D

Transformer Shipments 

2015-2044 (Billion KVA) 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06

Equipment Cost 

($Billions) 0.50 -0.04 -0.04 -0.04 -0.08 -0.07 -0.11 -0.39 -0.04 -0.04 -0.06 -0.06

Operating Cost (Savings 

in TSLs) ($Billions) 0.59 0.08 0.08 0.10 0.17 0.16 0.19 0.29 0.09 0.10 0.15 0.15

Cumulative Source 

Savings 2044 (Quads) 0.01 0.01 0.02 0.03 0.03 0.04 0.07 0.01 0.02 0.03 0.03

Net Present Value at 3% 

Discount Rate ($Billions) 0.18 0.18 0.22 0.38 0.36 0.38 0.18 0.19 0.21 0.35 0.35

Net Present Value at 7% 

Discount Rate ($Billions) 0.05 0.05 0.06 0.09 0.09 0.08 -0.10 0.05 0.06 0.09 0.09