1 | Building Technologies Program eere.energy.gov The Parker Ranch installation in Hawaii 

# BUILDING TECHNOLOGIES PROGRAM

Distribution Transformers

Energy Conservation Program LBNL Staff on behalf of

U.S. Department of Energy

Energy Efficiency & Renewable Energy



## November 8, 20112 | Building Technologies Program eere.energy.gov 

# Draft Life

**- Cycle Cost, Payback Period and National Impacts Analysis** 

**Results for Medium Voltage Dry**

**- Type Transformers** 

Prepared for the Medium Voltage Distribution Transformers Negotiated

Rulemaking Working Group

November 8, 2011

**Contents**

• Life

- Cycle Cost Results for Design Lines 9

– 13B

• Payback Period Results for Design Lines 9

– 13B

• Materials Selection Results for Design Lines 9

– 13B

• National Impacts Results by Efficiency Level for Equipment Classes 5

- 10

• Proposed Trial Standard Levels and Mapping of TSLs to ELs



# • National Impacts Results by Trial Standard Level for Equipment Classes 5

- 10 

# Contents3 | Building Technologies Program eere.energy.gov 

# Design Line 9 LCC Results

Efficiency Level

1 2 3 4 5 6

Efficiency (%) 98.99% 99.12% 99.28% 99.38% 99.50% 99.59%

Transformers with Net Increase in LCC (%) 0.90% 1.05% 7.38% 6.21% 15.51% 60.55%

Transformers with Net LCC Savings (%) 99.05% 98.95% 92.62% 93.79% 84.49% 39.45%

Transformers with No Impact on LCC (%) 0.05% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean LCC Savings ($) 2886 4401 4492 5526 4688 -685

Median LCC Savings ($) 2726 4239 4028 5161 4139 -1436

- 10000

- 5000 0 5000 10000 15000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6**Average LCC Savings ($)**

**Efficiency Level Design Line 9 Average LCC Savings** 

**Average; Median; Box 25%- 75%; Whisker 5%** 

**- 95%**  median

average4 | Building Technologies Program eere.energy.gov 

# Design Line 10 LCC Results

Efficiency Level

1 2 3 4 5 6

Efficiency (%) 99.31% 99.40% 99.50% 99.53% 99.60% 99.67%

Transformers with Net Increase in LCC (%) 1.99% 21.49% 30.31% 30.04% 40.69% 75.51%

Transformers with Net LCC Savings (%) 97.98% 78.51% 69.69% 69.96% 59.31% 24.49%

Transformers with No Impact on LCC (%) 0.03% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean LCC Savings ($) 4162 4823 4918 5584 4188 -8423

Median LCC Savings ($) 3952 3874 3870 4382 2439 -10599

- 40000 - 30000 - 20000 - 10000 0 10000 20000 30000 40000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6**Average LCC Savings ($)**

**Efficiency Level Design Line 10 Average LCC Savings** 

**Average; Median; Box 25%- 75%; Whisker 5%** 

**- 95%**  median

average5 | Building Technologies Program eere.energy.gov 

# Design Line 11 LCC Results

Efficiency Level

1 2 3 4 5 6

Efficiency (%) 98.81% 98.94% 99.06% 99.13% 99.32% 99.50%

Transformers with Net Increase in LCC (%) 5.17% 41.35% 17.29% 16.89% 32.13% 72.71%

Transformers with Net LCC Savings (%) 94.79% 58.65% 82.71% 83.11% 67.87% 27.29%

Transformers with No Impact on LCC (%) 0.04% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean LCC Savings ($) 1888 513 2558 2726 2089 -2498

Median LCC Savings ($) 1926 344 2249 2420 1731 -3083

- 15000 - 10000

- 5000 0 5000 10000 15000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6**Average LCC Savings ($)**

**Efficiency Level Design Line 11 Average LCC Savings** 

**Average; Median; Box 25%- 75%; Whisker 5%** 

**- 95%**  median

average6 | Building Technologies Program eere.energy.gov 

# Design Line 12 LCC Results

Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 99.21% 99.30% 99.39% 99.46% 99.53% 99.59% 99.63%

Transformers with Net Increase in LCC (%) 6.94% 8.67% 18.86% 16.70% 23.51% 45.22% 81.29%

Transformers with Net LCC Savings (%) 93.06% 91.33% 81.14% 83.30% 76.49% 54.78% 18.71%

Transformers with No Impact on LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean LCC Savings ($) 4103 6572 7548 9337 8968 2998 -12277

Median LCC Savings ($) 3698 6060 6645 8613 8012 1538 -13976

- 40000 - 30000 - 20000 - 10000 0 10000 20000 30000 40000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7**Average LCC Savings ($)**

**Efficiency Level Design Line 12 Average LCC Savings** 

**Average; Median; Box 25%- 75%; Whisker 5%** 

**- 95%**  median

average7 | Building Technologies Program eere.energy.gov 

# Design Line 13A LCC Results

**Efficiency Level**

**1 2**  **3 4**  **5 6** 

Efficiency (%) 98.76% 98.85% 98.92% 99.10% 99.29% 99.48%

Transformers with Net Increase in LCC (%) 32.02% 39.01% 49.67% 47.77% 49.68% 93.88%

Transformers with Net LCC Savings (%) 67.98% 60.99% 50.33% 52.23% 50.32% 6.12%

Transformers with No Impact on LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean LCC Savings ($) 698 707 359 392 481 -9654

Median LCC Savings ($) 518 442 20 164 35 -10453

- 20000 - 15000 - 10000

- 5000 0 5000 10000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6**Average LCC SAvings ($)**

**Efficiency Level Design Line 13A Average LCC Savings** 

**Average; Median; Box 25%- 75%; Whisker 5%** 

**- 95%**  median

average8 | Building Technologies Program eere.energy.gov 

# Design Line 13B LCC Results

**Efficiency Level**

**1 2**  **3 4**  **5 6** 

Efficiency (%) 99.23% 99.31% 99.38% 99.43% 99.49% 99.58%

Transformers with Net Increase in LCC (%) 9.62% 15.86% 31.28% 55.80% 45.98% 55.45%

Transformers with Net LCC Savings (%) 90.38% 84.14% 68.72% 44.20% 54.02% 44.55%

Transformers with No Impact on LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean LCC Savings ($) 4193 7109 5624 91 2422 -775

Median LCC Savings ($) 3749 5964 4186 -1605 1333 -2276

- 30000 - 20000 - 10000 0 10000 20000 30000 40000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6**Average LCC Savings ($)**

**Efficiency Level Design Line 13B Average LCC Savings** 

**Average; Median; Box 25%- 75%; Whisker 5%** 

**- 95%**  median

average9 | Building Technologies Program eere.energy.gov 

# Design Line 9 PBP Results

Efficiency Level

1 2 3 4 5 6

Mean Payback (Years) 3.0 3.5 9.4 9.3 12.4 21.5

Median Payback (Years) 2.9 3.4 9.1 9.1 12.1 20.7

Transformers having Well Defined Payback (%) 99.95% 100.00% 100.00% 100.00% 100.00% 100.00%

Transformers having Undefined Payback (%) 0.05% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Retail Cost ($) 12,883 13,304 15,781 16,653 19,056 24,764

Mean Installation Costs ($) 3,127 3,147 3,567 3,737 4,051 4,725

Mean Operating Costs ($) 925 819 658 546 444 390

Mean Incremental First Cost ($) 499 941 3,838 4,880 7,597 13,979

Mean Operating Cost Savings ($) 183 288 450 562 663 718

Payback of Average Transformer 2.7 3.3 8.5 8.7 11.5 19.5

0 5 10 15 20 25 30 35 40

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6**Average Payback Period (years)**

**Efficiency Level Design Line 9 Average Payback Period** 

**Average; Median; Box 25%- 75%; Whisker 5%** 

**- 95%**  median

average10 | Building Technologies Program eere.energy.gov 

# Design Line 10 PBP Results

Efficiency Level

1 2 3 4 5 6

Mean Payback (Years) 2.9 13.3 15.6 15.5 17.6 26.6

Median Payback (Years) 2.0 11.0 15.0 15.0 16.7 24.8

Transformers having Well Defined Payback (%) 99.80% 99.95% 100.00% 100.00% 100.00% 100.00%

Transformers having Undefined Payback (%) 0.20% 0.05% 0.00% 0.00% 0.00% 0.00%

Mean Retail Cost ($) 43,910 49,012 58,503 59,907 65,164 81,054

Mean Installation Costs ($) 6,474 6,847 7,858 7,977 8,391 9,477

Mean Operating Costs ($) 2,772 2,440 1,869 1,750 1,520 1,284

Mean Incremental First Cost ($) 469 5,943 16,446 17,967 23,639 40,615

Mean Operating Cost Savings ($) 250 581 1,153 1,271 1,502 1,737

Payback of Average Transformer 1.9 10.2 14.3 14.1 15.7 23.4

0 5 10 15 20 25 30 35 40 45 50

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6**Average Payback Period (years)**

**Efficiency Level Design Line 10 Average Payback Period** 

**Average; Median; Box 25%- 75%; Whisker 5%** 

**- 95%**  median

average11 | Building Technologies Program eere.energy.gov 

# Design Line 11 PBP Results

Efficiency Level

1 2 3 4 5 6

Mean Payback (Years) 0.5 19.7 12.9 12.8 15.9 24.6

Median Payback (Years) 0.0 15.9 12.5 12.5 15.3 23.5

Transformers having Well Defined Payback (%) 95.23% 98.04% 100.00% 100.00% 100.00% 100.00%

Transformers having Undefined Payback (%) 4.77% 1.96% 0.00% 0.00% 0.00% 0.00%

Mean Retail Cost ($) 22,538 25,170 26,766 27,015 29,817 35,976

Mean Installation Costs ($) 3,846 4,220 4,263 4,288 4,620 5,203

Mean Operating Costs ($) 1,003 915 716 692 557 441

Mean Incremental First Cost ($) -88 2,917 4,557 4,830 7,964 14,706

Mean Operating Cost Savings ($) 97 185 384 408 542 659

Payback of Average Transformer -0.9 15.8 11.9 11.8 14.7 22.3

0 5 10 15 20 25 30 35 40 45

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6**Average Payback Period (years)**

**Efficiency Level Design Line 11 Average Payback Period** 

**Average; Median; Box 25%- 75%; Whisker 5%** 

**- 95%**  median

average12 | Building Technologies Program eere.energy.gov 

# Design Line 12 PBP Results

Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 9.3 10.5 13.4 13.0 14.3 18.3 26.7

Median Payback (Years) 9.0 10.1 13.1 12.8 13.9 17.8 25.8

Transformers having Well Defined Payback (%) 99.97% 99.99% 100.00% 100.00% 100.00% 100.00% 100.00%

Transformers having Undefined Payback (%) 0.03% 0.01% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Retail Cost ($) 59,981 63,536 70,586 73,250 78,188 87,377 103,382

Mean Installation Costs ($) 7,026 7,241 8,132 8,312 8,621 9,268 10,260

Mean Operating Costs ($) 2,965 2,629 2,147 1,897 1,634 1,426 1,333

Mean Incremental First Cost ($) 3,413 7,183 15,125 17,969 23,215 33,051 50,048

Mean Operating Cost Savings ($) 406 742 1,224 1,473 1,736 1,945 2,038

Payback of Average Transformer 8.4 9.7 12.4 12.2 13.4 17.0 24.6

0 5 10 15 20 25 30 35 40 45

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7**Average Payback Period (years)**

**Efficiency Level Design Line 12 Average Payback Period** 

**Average; Median; Box 25%- 75%; Whisker 5%** 

**- 95%**  median

average13 | Building Technologies Program eere.energy.gov 

# Design Line 13A PBP Results

Efficiency Level

1 2 3 4 5 6

Mean Payback (Years) 18.0 19.4 21.6 18.8 19.1 36.0

Median Payback (Years) 12.4 15.2 18.0 18.5 18.6 34.1

Transformers having Well Defined Payback (%) 98.63% 99.93% 100.00% 100.00% 100.00% 100.00%

Transformers having Undefined Payback (%) 1.37% 0.07% 0.00% 0.00% 0.00% 0.00%

Mean Retail Cost ($) 28,159 29,238 30,509 34,312 36,608 47,828

Mean Installation Costs ($) 4,696 4,808 4,948 5,094 5,342 6,429

Mean Operating Costs ($) 1,084 1,019 962 747 605 488

Mean Incremental First Cost ($) 1,226 2,416 3,827 7,776 10,320 22,627

Mean Operating Cost Savings ($) 104 168 226 441 583 700

Payback of Average Transformer 11.8 14.3 16.9 17.6 17.7 32.3

0 10 20 30 40 50 60 70

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6**Average Payback Period (years)**

**Efficiency Level Design Line 13A Average Payback Period** 

**Average; Median; Box 25%- 75%; Whisker 5%** 

**- 95%**  median

average14 | Building Technologies Program eere.energy.gov 

# Design Line 13B PBP Results

Efficiency Level

1 2 3 4 5 6

Mean Payback (Years) 9.2 12.1 15.7 21.2 18.5 20.2

Median Payback (Years) 7.7 11.3 14.5 19.5 18.2 19.7

Transformers having Well Defined Payback (%) 98.72% 99.94% 100.00% 100.00% 100.00% 100.00%

Transformers having Undefined Payback (%) 1.28% 0.06% 0.00% 0.00% 0.00% 0.00%

Mean Pretail Price ($) 72,264 78,359 84,764 93,784 101,240 113,457

Mean Installation Costs ($) 8,563 9,075 9,445 9,524 9,647 10,251

Mean Operating Costs ($) 4,220 3,707 3,421 3,229 2,694 2,175

Mean Incremental First Cost ($) 2,831 9,437 16,211 25,310 32,890 45,711

Mean Operating Cost Savings ($) 379 893 1,178 1,370 1,905 2,425

Payback of Average Transformer 7.5 10.6 13.8 18.5 17.3 18.9

0 5 10 15 20 25 30 35 40

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6**Average Payback Period (years)**

**Efficiency Level Design Line 13B Average Payback Period** 

**Average; Median; Box 25%- 75%; Whisker 5%** 

**- 95%**  median

average15 | Building Technologies Program eere.energy.gov 

# Core Materials Selection

Materials Efficiency Level

Basecase 1 2 3 4 5 6

M12

M6 0.0% 0.0% 0.0%

M5 96.4% 0.0% 0.0%

M4

M3 3.6% 36.3% 0.0% 0.0% 0.0%

M2

H0 0.0% 63.7% 100.0% 97.8% 0.0%

ZDMH 0.0% 0.0% 0.0%

SA1 0.0% 0.0% 2.2% 100.0% 100.0% 100.0% Materials Efficiency Level

Basecase 1 2 3 4 5 6

M12

M6

M5 0.0% 0.0% 0.0%

M4 0.0% 0.0% 0.0%

M3 100.0% 99.7% 31.6% 0.0% 0.0%

M2

H0 0.0% 0.3% 68.4% 1.4% 0.0%

ZDMH

SA1 0.0% 0.0% 0.0% 98.7% 100.0% 100.0% 100.0% 

# Design Line 9 Design Line10 

# • These results represent the fraction of each core material sampled

in the LCC simulation.

• NULL (blank) values indicate the were no designs available for a

given core material and efficiency level16 | Building Technologies Program eere.energy.gov 

# Core Materials Selection (cont)

Materials Efficiency Level

Basecase 1 2 3 4 5 6

M12

M6 0.0%

M5

M4 68.1% 0.0% 0.0%

M3 11.1% 0.0% 0.0% 0.0% 0.0%

M2

H0 20.7% 0.0% 0.3% 0.0% 0.0%

ZDMH 99.2% 97.4% 0.0% 0.0%

SA1 0.0% 0.8% 2.3% 100.0% 100.0% 100.0% 100.0%



# Design Line 11

Materials Efficiency Level

Basecase 1 2 3 4 5 6 7

M12

M6

M5 0.0% 0.0%

M4 98.2% 0.0% 0.0% 0.0%

M3 0.0% 0.0% 0.0% 0.0% 0.0%

M2

H0 1.8% 100.0% 99.6% 0.9% 0.0%

ZDMH

SA1 0.0% 0.0% 0.4% 99.2% 100.0% 100.0% 100.0% 100.0%



# Design Line 1217 | Building Technologies Program eere.energy.gov 

# Core Material Selection (cont)

Design Line 13A

Materials Efficiency Level

Basecase 1 2 3 4 5 6

M12

M6

M5 0.0%

M4 0.0% 0.0% 0.0%

M3 100.0% 100.0% 100.0% 99.1%

M2

H0 0.0% 0.0% 0.0% 1.0%

ZDMH 0.0% 0.0% 0.0%

SA1 0.0% 0.0% 0.0% 100.0% 100.0% 100.0%



# Design Line 13B

Materials Efficiency Level

Basecase 1 2 3 4 5 6

M12

M6

M5 0.0% 0.0% 0.0%

M4 97.4% 8.3% 0.0%

M3 1.3% 91.7% 99.9% 86.5%

M2

H0 1.4% 0.0% 0.1% 13.5% 98.3% 0.0%

ZDMH

SA1 0.0% 0.0% 0.0% 1.7% 100.0% 100.0%18 | Building Technologies Program eere.energy.gov 

# National Impacts Summary Results

for MV Dry

- Type, by Efficiency Level

Summary Results by Efficiency Level for Medium

- Voltage Dry

- Type Transformers

Efficiency Level

Base 1 2 3 4 5 6 7

Transformer Shipments 2015

- 2044 (Billion KVA) 0.22 0.22 0.22 0.22 0.22 0.22 0.22 0.22

Equipment Cost ($Billions) 4.85 0.12

- 0.12

- 0.69

- 0.81

- 2.23

- 3.13

- 4.18

Operating Cost (Savings in TSLs) ($Billions) 5.70 0.97 1.61 2.29 2.71 2.68 3.13 3.28

Cumulative Source Savings 2044 (Quads) 0.11 0.18 0.25 0.30 0.30 0.35 0.37

Net Present Value at 3% Discount Rate ($Billions) 1.10 1.49 1.60 1.91 0.45 0.00

- 0.89

Net Present Value at 7% Discount Rate ($Billions) 0.37 0.45 0.37 0.45

- 0.29

- 0.61

- 1.1019 | Building Technologies Program eere.energy.gov 

# Summary Results by EL for Equipment Class 5 

# National Impacts Results for MV Dry

Type, by Efficiency Level

Summary Results 

# by EL for Equipment Class 6 Efficiency Level

Base 1 2 3 4 5 6 7

Transformer Shipments 2015

- 2044 (Billion KVA) 0.0004 0.0004 0.0004 0.0004 0.0004 0.0004 0.0004 0.0004

Equipment Cost ($Billions) 0.0075 0.0020 0.0020 0.0013 0.0018

- 0.0050

- 0.0073

- 0.0086

Operating Cost (Savings in TSLs) ($Billions) 0.0115 0.0038 0.0053 0.0064 0.0075 0.0054 0.0060 0.0067

Cumulative Source Savings 2044 (Quads) 0.0004 0.0006 0.0007 0.0008 0.0006 0.0007 0.0008

Net Present Value at 3% Discount Rate ($Billions) 0.0058 0.0073 0.0077 0.0092 0.0004

- 0.0013

- 0.0020

Net Present Value at 7% Discount Rate ($Billions) 0.0022 0.0027 0.0027 0.0033

- 0.0009

- 0.0019

- 0.0023

Efficiency Level

Base 1 2 3 4 5 6 7

Transformer Shipments 2015

- 2044 (Billion KVA) 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

Equipment Cost ($Billions) 0.58 0.05 0.00

- 0.10

- 0.10

- 0.31

- 0.51

- 0.53

Operating Cost (Savings in TSLs) ($Billions) 0.81 0.15 0.25 0.37 0.41 0.39 0.45 0.46

Cumulative Source Savings 2044 (Quads) 0.02 0.03 0.04 0.05 0.04 0.05 0.05

Net Present Value at 3% Discount Rate ($Billions) 0.20 0.25 0.27 0.32 0.07

- 0.06

- 0.07

Net Present Value at 7% Discount Rate ($Billions) 0.07 0.08 0.07 0.08

- 0.04

- 0.12

- 0.1320 | Building Technologies Program eere.energy.gov 

# Summary Results by EL for Equipment Class 7 

# National Impacts Results for MV Dry

Type, by Efficiency Level

Summary Results 

# by EL for Equipment Class 8 Efficiency Level

Base 1 2 3 4 5 6 7

Transformer Shipments 2015

- 2044 (Billion KVA) 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005

Equipment Cost ($Billions) 0.0157 0.0033 0.0030 0.0019 0.0031

- 0.0078

- 0.0111

- 0.0140

Operating Cost (Savings in TSLs) ($Billions) 0.0162 0.0054 0.0072 0.0089 0.0103 0.0073 0.0088 0.0092

Cumulative Source Savings 2044 (Quads) 0.0006 0.0008 0.0010 0.0011 0.0008 0.0010 0.0010

Net Present Value at 3% Discount Rate ($Billions) 0.0087 0.0102 0.0109 0.0134

- 0.0005

- 0.0023

- 0.0049

Net Present Value at 7% Discount Rate ($Billions) 0.0034 0.0038 0.0038 0.0049

- 0.0017

- 0.0029

- 0.0043

Efficiency Level

Base 1 2 3 4 5 6 7

Transformer Shipments 2015

- 2044 (Billion KVA) 0.17 0.17 0.17 0.17 0.17 0.17 0.17 0.17

Equipment Cost ($Billions) 3.89 0.06

- 0.12

- 0.56

- 0.63

- 1.58

- 2.21

- 3.23

Operating Cost (Savings in TSLs) ($Billions) 4.41 0.75 1.23 1.75 2.12 2.19 2.50 2.64

Cumulative Source Savings 2044 (Quads) 0.08 0.14 0.19 0.23 0.24 0.28 0.30

Net Present Value at 3% Discount Rate ($Billions) 0.80 1.11 1.19 1.49 0.61 0.30

- 0.59

Net Present Value at 7% Discount Rate ($Billions) 0.27 0.33 0.27 0.35

- 0.12

- 0.34

- 0.8221 | Building Technologies Program eere.energy.gov 

# Summary Results by EL for Equipment Class 9 

# National Impacts Results for MV Dry

Type by Efficiency Level

Summary Results 

# by EL for Equipment Class 10 Efficiency Level

Base 1 2 3 4 5 6 7

Transformer Shipments 2015

- 2044 (Billion KVA) 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001

Equipment Cost ($Billions) 0.0024 0.0004 0.0004 0.0003

- 0.0003

- 0.0038

- 0.0046

- 0.0046

Operating Cost (Savings in TSLs) ($Billions) 0.0031 0.0008 0.0012 0.0015 0.0013

- 0.0003 0.0004 0.0004

Cumulative Source Savings 2044 (Quads) 0.0001 0.0001 0.0002 0.0002

- 0.0001 0.0000 0.0000

Net Present Value at 3% Discount Rate ($Billions) 0.0012 0.0016 0.0017 0.0011

- 0.0042

- 0.0042

- 0.0042

Net Present Value at 7% Discount Rate ($Billions) 0.0005 0.0006 0.0006 0.0003

- 0.0021

- 0.0022

- 0.0022

Efficiency Level

Base 1 2 3 4 5 6 7

Transformer Shipments 2015

- 2044 (Billion KVA) 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02

Equipment Cost ($Billions) 0.35 0.01

- 0.01

- 0.03

- 0.09

- 0.31

- 0.39

- 0.39

Operating Cost (Savings in TSLs) ($Billions) 0.46 0.07 0.12 0.15 0.16 0.09 0.16 0.16

Cumulative Source Savings 2044 (Quads) 0.01 0.01 0.02 0.02 0.01 0.02 0.02

Net Present Value at 3% Discount Rate ($Billions) 0.08 0.11 0.12 0.07

- 0.22

- 0.22

- 0.22

Net Present Value at 7% Discount Rate ($Billions) 0.03 0.03 0.03 0.01

- 0.13

- 0.15

- 0.1522 | Building Technologies Program eere.energy.gov 

# Proposed Trial Standard Levels and

Mapping of TSLs to ELs

The following draft Trial Standard Levels are presented for discussion.

Draft Trial Standard Levels (TSLs) Description

1. Minimum LCC / Max NPV

2. Max Energy Savings with positive (or near zero) NPV at 3% discount rate

3. 30% Reduction in Operating Costs

4. Materials constraint (greatest LCC Savings with M3 steel available as a

design option)

5. Materials constraint plus (gap

- fill between TSL 4 and TSL 6)

6. Maximum Technology

EC5 EC6 EC7 EC8 EC9 EC10

(DL9+DL10)/3 DL9+DL10 (DL11+DL12)/3 DL11+DL12 (DL13A+DL13B)/3 DL13A+DL13B

20- 45 KV BIL 46- 95 KV BIL 95+ KV BIL

15

- 833 KVA 1 Φ 15

- 2500 KVA 3 Φ 15

- 833 KVA 1 Φ 15

- 2500 KVA 3 Φ 75

- 833 KVA 1 Φ 225

- 2500 KVA 3 Φ



### TSL1 EL 3 EL 2 EL 4 EL 4 EL 1 EL 2

**TSL2** EL 6 EL 6 EL 6 EL 7 EL 6 EL 4

**TSL3** EL 2 EL 3 EL 3 EL 3 EL 4 EL 4

**TSL4** EL 4 EL 4 EL 4 EL 4 EL 3 EL 3

**TSL5** EL 5 EL 5 EL 5 EL 5 EL 4 EL 5

**TSL6** EL 6 EL 6 EL 6 EL 7 EL 6 EL 623 | Building Technologies Program eere.energy.gov 

# National Impacts Summary Results for

MV Dry

- Type, by Trial Standard Level

Summary Results by Trial Standard Level for Medium

- Voltage Dry

- Type Transformers

Trial Standard Level

Base 1 2 3 4 5 6

Transformer Shipments 2015

- 2044 (Billion KVA) 0.22 0.22 0.22 0.22 0.22 0.22 0.22

Equipment Cost ($Billions) 4.87

- 0.79

- 2.94

- 0.72

- 0.76

- 2.24

- 4.19

Operating Cost (Savings in TSLs) ($Billions) 5.71 2.42 3.53 2.31 2.70 2.69 3.28

Cumulative Source Savings 2044 (Quads) 0.27 0.40 0.25 0.30 0.30 0.37

Net Present Value at 3% Discount Rate ($Billions) 1.63 0.59 1.58 1.93 0.45

- 0.90

Net Present Value at 7% Discount Rate ($Billions) 0.36

- 0.39 0.36 0.47

- 0.30

- 1.11



# Draft Trial Standard Levels (TSLs) Description

1. Minimum LCC / Max NPV

2. Max Energy Savings with positive (or near zero) NPV at 3% discount

rate

3. 30% Reduction in Operating Costs

4. Materials constraint (greatest LCC Savings with M3 steel available as

a design option)

5. Materials constraint plus (gap

- fill between TSL 4 and TSL 6)

6. Maximum Technology24 | Building Technologies Program eere.energy.gov 

# Summary Results by TSL for Equipment Class 5 

# National Impacts Results for MV Dry

Type, by Trial Standard Level

Summary Results 

# by TSL for Equipment Class 6 Trial Standard Level

Base 1 2 3 4 5 6

Transformer Shipments 2015

- 2044 (Billion KVA) 0.0004 0.0004 0.0004 0.0004 0.0004 0.0004 0.0004

Equipment Cost ($Billions) 0.0087 0.0011

- 0.0026 0.0014 0.0015

- 0.0058

- 0.0092

Operating Cost (Savings in TSLs) ($Billions) 0.0122 0.0059 0.0090 0.0064 0.0082 0.0059 0.0069

Cumulative Source Savings 2044 (Quads) 0.0007 0.0011 0.0007 0.0009 0.0007 0.0008

Net Present Value at 3% Discount Rate ($Billions) 0.0069 0.0064 0.0078 0.0097 0.0001

- 0.0023

Net Present Value at 7% Discount Rate ($Billions) 0.0024 0.0015 0.0027 0.0034

- 0.0011

- 0.0025

Trial Standard Level

Base 1 2 3 4 5 6

Transformer Shipments 2015

- 2044 (Billion KVA) 0.03 0.03 0.03 0.03 0.03 0.03 0.03

Equipment Cost ($Billions) 0.60

- 0.01

- 0.36

- 0.09

- 0.09

- 0.33

- 0.54

Operating Cost (Savings in TSLs) ($Billions) 0.81 0.24 0.52 0.36 0.42 0.40 0.47

Cumulative Source Savings 2044 (Quads) 0.03 0.06 0.04 0.05 0.05 0.05

Net Present Value at 3% Discount Rate ($Billions) 0.23 0.16 0.27 0.32 0.07

- 0.08

Net Present Value at 7% Discount Rate ($Billions) 0.07

- 0.02 0.07 0.08

- 0.04

- 0.1325 | Building Technologies Program eere.energy.gov 

# Summary Results by TSL for Equipment Class 7 

# National Impacts Results for MV Dry

Type, by Trial Standard Level

Summary Results 

# by TSL for Equipment Class 8 Trial Standard Level

Base 1 2 3 4 5 6

Transformer Shipments 2015

- 2044 (Billion KVA) 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005

Equipment Cost ($Billions) 0.0157 0.0008

- 0.0033 0.0019 0.0031

- 0.0078

- 0.0140

Operating Cost (Savings in TSLs) ($Billions) 0.0162 0.0091 0.0119 0.0089 0.0103 0.0073 0.0092

Cumulative Source Savings 2044 (Quads) 0.0010 0.0013 0.0010 0.0011 0.0008 0.0010

Net Present Value at 3% Discount Rate ($Billions) 0.0099 0.0086 0.0109 0.0134

- 0.0005

- 0.0049

Net Present Value at 7% Discount Rate ($Billions) 0.0033 0.0021 0.0038 0.0049

- 0.0017

- 0.0043

Trial Standard Level

Base 1 2 3 4 5 6

Transformer Shipments 2015

- 2044 (Billion KVA) 0.17 0.17 0.17 0.17 0.17 0.17 0.17

Equipment Cost ($Billions) 3.89

- 0.77

- 2.50

- 0.56

- 0.63

- 1.58

- 3.23

Operating Cost (Savings in TSLs) ($Billions) 4.41 2.05 2.82 1.75 2.12 2.19 2.64

Cumulative Source Savings 2044 (Quads) 0.22 0.32 0.19 0.23 0.24 0.30

Net Present Value at 3% Discount Rate ($Billions) 1.27 0.32 1.19 1.49 0.61

- 0.59

Net Present Value at 7% Discount Rate ($Billions) 0.25

- 0.39 0.27 0.35

- 0.12

- 0.8226 | Building Technologies Program eere.energy.gov 

# Summary Results by EL for Equipment Class 9 

# National Impacts Results for MV Dry

Type by Efficiency Level

Summary Results 

# by EL for Equipment Class 10 Trial Standard Level

Base 1 2 3 4 5 6

Transformer Shipments 2015

- 2044 (Billion KVA) 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001

Equipment Cost ($Billions) 0.0024 0.0002 0.0000 0.0001 0.0000

- 0.0038

- 0.0046

Operating Cost (Savings in TSLs) ($Billions) 0.0031 0.0011 0.0015 0.0016 0.0012

- 0.0003 0.0004

Cumulative Source Savings 2044 (Quads) 0.0001 0.0002 0.0002 0.0001

- 0.0001 0.0000

Net Present Value at 3% Discount Rate ($Billions) 0.0014 0.0015 0.0016 0.0012

- 0.0042

- 0.0042

Net Present Value at 7% Discount Rate ($Billions) 0.0005 0.0005 0.0005 0.0004

- 0.0021

- 0.0022

Trial Standard Level

Base 1 2 3 4 5 6

Transformer Shipments 2015

- 2044 (Billion KVA) 0.02 0.02 0.02 0.02 0.02 0.02 0.02

Equipment Cost ($Billions) 0.35

- 0.02

- 0.07

- 0.07

- 0.05

- 0.31

- 0.39

Operating Cost (Savings in TSLs) ($Billions) 0.46 0.12 0.17 0.17 0.14 0.09 0.16

Cumulative Source Savings 2044 (Quads) 0.01 0.02 0.02 0.02 0.01 0.02

Net Present Value at 3% Discount Rate ($Billions) 0.10 0.09 0.10 0.09

- 0.22

- 0.22

Net Present Value at 7% Discount Rate ($Billions) 0.03 0.02 0.02 0.02

- 0.13

- 0.15