8-D-i

APPENDIX 8-D. LIFE-CYCLE COST AND PAYBACK PERIOD 

SENSITIVITY ANALYSIS

TABLE OF CONTENTS

8-D.1 DESIGN LINE 1 RESULTS ................................................................................. 8-D-1

8-D.1.1 Design Line 1 Results, Baseline Scenario ............................................................. 8-D-2

8-D.1.2 Design Line 1 Results, Low A & B Distribution Scenario .................................... 8-D-3

8-D.1.3 Design Line 1 Results, High A & B Distribution Scenario ................................... 8-D-4

8-D.1.4 Design Line 1 Results, Low Loading Scenario ..................................................... 8-D-5

8-D.1.5 Design Line 1 Results, High Loading Scenario ..................................................... 8-D-6

8-D.1.6 Design Line 1 Results, Low Electricity Price Scenario ......................................... 8-D-7

8-D.1.7 Design Line 1 Results, High Electricity Price Scenario ........................................ 8-D-8

8-D.1.8 Design Line 1 Results, No Load Growth Scenario ................................................ 8-D-9

8-D.1.9 Design Line 1 Results, High Load Growth Scenario ........................................... 8-D-10

8-D.1.10 Design Line 1 Results, Low Equipment Price Scenario ...................................... 8-D-11

8-D.1.11 Design Line 1 Results, High Equipment Price Scenario ..................................... 8-D-12

8-D.1.12 Design Line 1 Results, Low Electricity Price Trend Scenario ............................ 8-D-13

8-D.1.13 Design Line 1 Results, High Electricity Price Trend Scenario ............................ 8-D-14

8-D.2 DESIGN LINE 7 RESULTS ............................................................................... 8-D-15

8-D.2.1 Design Line 7 Results, Baseline Scenario ........................................................... 8-D-16

8-D.2.2 Design Line 7 Results, Low A & B Distribution Scenario .................................. 8-D-17

8-D.2.3 Design Line 7 Results, High A & B Distribution Scenario ................................. 8-D-18

8-D.2.4 Design Line 7 Results, Low Loading Scenario ................................................... 8-D-19

8-D.2.5 Design Line 7 Results, High Loading Scenario ................................................... 8-D-20

8-D.2.6 Design Line 7 Results, Low Electricity Price Scenario ....................................... 8-D-21

8-D.2.7 Design Line 7 Results, High Electricity Price Scenario ...................................... 8-D-22

8-D.2.8 Design Line 7 Results, Medium Load Growth Scenario ..................................... 8-D-23

8-D.2.9 Design Line 7 Results, High Load Growth Scenario ........................................... 8-D-24

8-D.2.10 Design Line 7 Results, Low Equipment Price Scenario ...................................... 8-D-25

8-D.2.11 Design Line 7 Results, High Equipment Price Scenario ..................................... 8-D-26

8-D.2.12 Design Line 7 Results, Low Electricity Price Trend Scenario ............................ 8-D-27

8-D.2.13 Design Line 7 Results, High Electricity Price Trend Scenario ............................ 8-D-28

8-D.3 DESIGN LINE 13 RESULTS ............................................................................. 8-D-29

8-D.3.1 Design Line 13 Results, Baseline Scenario ......................................................... 8-D-30

8-D.3.2 Design Line 13 Results, Low A & B Distribution Scenario ................................ 8-D-31

8-D.3.3 Design Line 13 Results, High A & B Distribution Scenario ............................... 8-D-32

8-D.3.4 Design Line 13 Results, Low Loading Scenario ................................................. 8-D-33

8-D.3.5 Design Line 13 Results, High Loading Scenario ................................................. 8-D-34

8-D.3.6 Design Line 13 Results, Low Electricity Price Scenario ..................................... 8-D-35

8-D.3.7 Design Line 13 Results, High Electricity Price Scenario .................................... 8-D-36

8-D.3.8 Design Line 13 Results, Medium Load Growth Scenario ................................... 8-D-37

8-D.3.9 Design Line 13 Results, High Load Growth Scenario ......................................... 8-D-38

8-D.3.10 Design Line 13 Results, Low Equipment Price Scenario .................................... 8-D-39

8-D.3.11 Design Line 13 Results, High Equipment Price Scenario ................................... 8-D-40

8-D.3.12 Design Line 13 Results, Low Electricity Price Trend Scenario .......................... 8-D-41
8-D-ii

8-D.3.13 Design Line 13 Results, High Electricity Price Trend Scenario .......................... 8-D-42

LIST OF TABLES

Table 8-D.1.1 LCC Savings ($), Summary Table for Design Line 1 ............................... 8-D-1

Table 8-D.1.2 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, Baseline Scenario .............................................................................. 8-D-2

Table 8-D.1.3 Summary Payback Period Results for Design Line 1 Representative 

Unit, Baseline Scenario .............................................................................. 8-D-2

Table 8-D.1.4 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, Low A & B Distribution Scenario .................................................... 8-D-3

Table 8-D.1.5 Summary Payback Period Results for Design Line 1 Representative 

Unit, Low A & B Distribution Scenario .................................................... 8-D-3

Table 8-D.1.6 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, High A & B Distribution Scenario ................................................... 8-D-4

Table 8-D.1.7 Summary Payback Period Results for Design Line 1 Representative 

Unit, High A & B Distribution Scenario ................................................... 8-D-4

Table 8-D.1.8 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, Low Loading Scenario ...................................................................... 8-D-5

Table 8-D.1.9 Summary Payback Period Results for Design Line 1 Representative 

Unit, Low Loading Scenario ...................................................................... 8-D-5

Table 8-D.1.10 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, High Loading Scenario ..................................................................... 8-D-6

Table 8-D.1.11 Summary Payback Period Results for Design Line 1 Representative 

Unit, High Loading Scenario ..................................................................... 8-D-6

Table 8-D.1.12 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, Low Electricity Price Scenario ......................................................... 8-D-7

Table 8-D.1.13 Summary Payback Period Results for Design Line 1 Representative 

Unit, Low Electricity Price Scenario ......................................................... 8-D-7

Table 8-D.1.14 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, High Electricity Price Scenario......................................................... 8-D-8

Table 8-D.1.15 Summary Payback Period Results for Design Line 1 Representative 

Unit, High Electricity Price Scenario......................................................... 8-D-8

Table 8-D.1.16 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, No Load Growth Scenario ................................................................ 8-D-9

Table 8-D.1.17 Summary Payback Period Results for Design Line 1 Representative 

Unit, No Load Growth Scenario ................................................................ 8-D-9

Table 8-D.1.18 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, High Load Growth Scenario ........................................................... 8-D-10

Table 8-D.1.19 Summary Payback Period Results for Design Line 1 Representative 

Unit, High Load Growth Scenario ........................................................... 8-D-10

Table 8-D.1.20 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, Low Equipment Price Scenario ...................................................... 8-D-11

Table 8-D.1.21 Summary Payback Period Results for Design Line 1 Representative 

Unit, Low Equipment Price Scenario ...................................................... 8-D-11
8-D-iii

Table 8-D.1.22 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, High Equipment Price Scenario ...................................................... 8-D-12

Table 8-D.1.23 Summary Payback Period Results for Design Line 1 Representative 

Unit, High Equipment Price Scenario ...................................................... 8-D-12

Table 8-D.1.24 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, Low Electricity Price Trend Scenario ............................................. 8-D-13

Table 8-D.1.25 Summary Payback Period Results for Design Line 1 Representative 

Unit, Low Electricity Price Trend Scenario ............................................. 8-D-13

Table 8-D.1.26 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit, High Electricity Price Trend Scenario ............................................ 8-D-14

Table 8-D.1.27 Summary Payback Period Results for Design Line 1 Representative 

Unit, High Electricity Price Trend Scenario ............................................ 8-D-14

Table 8-D.2.1 LCC Savings ($), Summary Table for Design Line 7 ............................. 8-D-15

Table 8-D.2.2 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, Baseline Scenario ............................................................................ 8-D-16

Table 8-D.2.3 Summary Payback Period Results for Design Line 7 Representative 

Unit, Baseline Scenario ............................................................................ 8-D-16

Table 8-D.2.4 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, Low A & B Distribution Scenario .................................................. 8-D-17

Table 8-D.2.5 Summary Payback Period Results for Design Line 7 Representative 

Unit, Low A & B Distribution Scenario .................................................. 8-D-17

Table 8-D.2.6 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, High A & B Distribution Scenario ................................................. 8-D-18

Table 8-D.2.7 Summary Payback Period Results for Design Line 7 Representative 

Unit, High A & B Distribution Scenario ................................................. 8-D-18

Table 8-D.2.8 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, Low Loading Scenario .................................................................... 8-D-19

Table 8-D.2.9 Summary Payback Period Results for Design Line 7 Representative 

Unit, Low Loading Scenario .................................................................... 8-D-19

Table 8-D.2.10 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, High Loading Scenario ................................................................... 8-D-20

Table 8-D.2.11 Summary Payback Period Results for Design Line 7 Representative 

Unit, High Loading Scenario ................................................................... 8-D-20

Table 8-D.2.12 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, Low Electricity Price Scenario ....................................................... 8-D-21

Table 8-D.2.13 Summary Payback Period Results for Design Line 7 Representative 

Unit, Low Electricity Price Scenario ....................................................... 8-D-21

Table 8-D.2.14 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, High Electricity Price Scenario....................................................... 8-D-22

Table 8-D.2.15 Summary Payback Period Results for Design Line 7 Representative 

Unit, High Electricity Price Scenario....................................................... 8-D-22

Table 8-D.2.16 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, Medium Load Growth Scenario ..................................................... 8-D-23

Table 8-D.2.17 Summary Payback Period Results for Design Line 7 Representative 

Unit, Medium Load Growth Scenario ..................................................... 8-D-23
8-D-iv

Table 8-D.2.18 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, High Load Growth Scenario ........................................................... 8-D-24

Table 8-D.2.19 Summary Payback Period Results for Design Line 7 Representative 

Unit, High Load Growth Scenario ........................................................... 8-D-24

Table 8-D.2.20 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, Low Equipment Price Scenario ...................................................... 8-D-25

Table 8-D.2.21 Summary Payback Period Results for Design Line 7 Representative 

Unit, Low Equipment Price Scenario ...................................................... 8-D-25

Table 8-D.2.22 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, High Equipment Price Scenario ...................................................... 8-D-26

Table 8-D.2.23 Summary Payback Period Results for Design Line 7 Representative 

Unit, High Equipment Price Scenario ...................................................... 8-D-26

Table 8-D.2.24 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, Low Electricity Price Trend Scenario ............................................. 8-D-27

Table 8-D.2.25 Summary Payback Period Results for Design Line 7 Representative 

Unit, Low Electricity Price Trend Scenario ............................................. 8-D-27

Table 8-D.2.26 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit, High Electricity Price Trend Scenario ............................................ 8-D-28

Table 8-D.2.27 Summary Payback Period Results for Design Line 7 Representative 

Unit, High Electricity Price Trend Scenario ............................................ 8-D-28

Table 8-D.3.1 LCC Savings ($), Summary Table for Design Line 13 ........................... 8-D-29

Table 8-D.3.2 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Baseline Scenario ............................................................................ 8-D-30

Table 8-D.3.3 Summary Payback Period Results for Design Line 13 Representative 

Unit, Baseline Scenario ............................................................................ 8-D-30

Table 8-D.3.4 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Low A & B Distribution Scenario .................................................. 8-D-31

Table 8-D.3.5 Summary Payback Period Results for Design Line 13 Representative 

Unit, Low A & B Distribution Scenario .................................................. 8-D-31

Table 8-D.3.6 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, High A & B Distribution Scenario ................................................. 8-D-32

Table 8-D.3.7 Summary Payback Period Results for Design Line 13 Representative 

Unit, High A & B Distribution Scenario ................................................. 8-D-32

Table 8-D.3.8 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Low Loading Scenario .................................................................... 8-D-33

Table 8-D.3.9 Summary Payback Period Results for Design Line 13 Representative 

Unit, Low Loading Scenario .................................................................... 8-D-33

Table 8-D.3.10 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, High Loading Scenario ................................................................... 8-D-34

Table 8-D.3.11 Summary Payback Period Results for Design Line 13 Representative 

Unit, High Loading Scenario ................................................................... 8-D-34

Table 8-D.3.12 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Low Electricity Price Scenario ....................................................... 8-D-35

Table 8-D.3.13 Summary Payback Period Results for Design Line 13 Representative 

Unit, Low Electricity Price Scenario ....................................................... 8-D-35
8-D-v

Table 8-D.3.14 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, High Electricity Price Scenario....................................................... 8-D-36

Table 8-D.3.15 Summary Payback Period Results for Design Line 13 Representative 

Unit, High Electricity Price Scenario....................................................... 8-D-36

Table 8-D.3.16 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Medium Load Growth Scenario ..................................................... 8-D-37

Table 8-D.3.17 Summary Payback Period Results for Design Line 13 Representative 

Unit, Medium Load Growth Scenario ..................................................... 8-D-37

Table 8-D.3.18 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, High Load Growth Scenario ........................................................... 8-D-38

Table 8-D.3.19 Summary Payback Period Results for Design Line 13 Representative 

Unit, High Load Growth Scenario ........................................................... 8-D-38

Table 8-D.3.20 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Low Equipment Price Scenario ...................................................... 8-D-39

Table 8-D.3.21 Summary Payback Period Results for Design Line 13 Representative 

Unit, Low Equipment Price Scenario ...................................................... 8-D-39

Table 8-D.3.22 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, High Equipment Price Scenario ...................................................... 8-D-40

Table 8-D.3.23 Summary Payback Period Results for Design Line 13 Representative 

Unit, High Equipment Price Scenario ...................................................... 8-D-40

Table 8-D.3.24 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Low Electricity Price Trend Scenario ............................................. 8-D-41

Table 8-D.3.25 Summary Payback Period Results for Design Line 13 Representative 

Unit, Low Electricity Price Trend Scenario ............................................. 8-D-41

Table 8-D.3.26 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, High Electricity Price Trend Scenario ............................................ 8-D-42

Table 8-D.3.27 Summary Payback Period Results for Design Line 13 Representative 

Unit, High Electricity Price Trend Scenario ............................................ 8-D-42

LIST OF FIGURES

Figure 8-D.1.1 Average LCC Savings ($) by Scenario for Design Line 1 ......................... 8-D-1

Figure 8-D.2.1 Average LCC Savings ($) by Scenario for Design Line 7 ....................... 8-D-15

Figure 8-D.3.1 Average LCC Savings ($) by Scenario for Design Line 13 ..................... 8-D-29
8-D-1

APPENDIX 8-D. LIFE-CYCLE COST AND PAYBACK PERIOD 

SENSITIVITY ANALYSIS

8-D.1 DESIGN LINE 1 RESULTS 

Figure 8-D.1.1 Average LCC Savings ($) by Scenario for Design 

Line 1

Table 8-D.1.1 LCC Savings ($), Summary Table for Design Line 1 

Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Baseline 193 1062 1177 1238 818 37 37

Low A & B Distribution 24 1028 1204 1326 904 119 119

High A & B Distribution 243 1072 1168 1210 790 11 11

Low Loading 111 1101 1120 1066 498 -353 -353

High Loading 289 1017 1244 1438 1189 490 490

Low Electricity Price 154 956 1045 1083 636 -159 -159

High Electricity Price 233 1168 1309 1393 999 232 232

No Load Growth 166 1075 1158 1182 713 -92 -92

High Load Growth 224 1048 1199 1302 936 181 181

Low Equipment Price 187 947 1327 1397 1009 265 265

High Equipment Price 154 1114 1221 1266 773 -105 -105

Low Electricity Price Trend 163 977 1073 1117 677 -114 -114

High Electricity Price Trend 221 1139 1272 1348 945 173 173

-600

-400

-200

0

200

400

600

800

1000

1200

1400

1600

99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Average LCC Savings ($)

Transformer Efficiency (%)

Baseline

Low A & B Distribution Scenario

High A & B Distribution Scenario

Low Loading Scenario

High Loading Scenario

Low Electricity Price Scenario

High Electricity Price Scenario

No Load Grow th Scenario

High Load Grow th Scenario

Low Equipment Price Scenario

High Equipment Price Scenario

Low Electricity Price Trend Scenario

High Electricity Price Trend Scenario
8-D-2

8-D.1.1 Design Line 1 Results, Baseline Scenario

Table 8-D.1.2 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

Baseline Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 33.31% 0.69% 2.11% 4.29% 24.14% 54.07% 54.07%

Transformers with No Change 

in LCC (%) 14.22% 11.43% 9.58% 7.92% 0.08% 0.00% 0.00%

Transformers with Net LCC

Benefit (%) 52.47% 87.88% 88.31% 87.79% 75.78% 45.93% 45.93%

Mean LCC Savings ($) 193 1062 1177 1238 818 37 37

Table 8-D.1.3 Summary Payback Period Results for Design Line 1 Representative Unit, 

Baseline Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 27.4 8.6 10.6 12.8 23.2 31.9 31.9

Transformers Unaffected by the 

TSL (%) 14.23% 11.44% 9.59% 7.93% 0.09% 0.00% 0.00%

Transformers having Well 

Defined Payback (%) 78.62% 88.56% 90.40% 91.91% 98.45% 98.80% 98.80%

Transformers having Undefined 

Payback (%) 7.15% 0.00% 0.01% 0.16% 1.46% 1.20% 1.20%

Mean Incremental First Cost ($) 1,381 1,371 1,405 1,449 1,562 1,692 1,692

Mean Operating Cost Savings 

($) 189 143 131 120 109 103 103

Payback of Average 

Transformer 7.3 9.6 10.8 12.0 14.3 16.4 16.4
8-D-3

8-D.1.2 Design Line 1 Results, Low A & B Distribution Scenario

Table 8-D.1.4 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

Low A & B Distribution Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 50.60% 0.69% 1.52% 3.13% 19.71% 52.95% 52.95%

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 49.40% 99.31% 98.48% 96.87% 80.29% 47.05% 47.05%

Mean LCC Savings ($) 24 1028 1204 1326 904 119 119

Table 8-D.1.5 Summary Payback Period Results for Design Line 1 Representative Unit, 

Low A & B Distribution Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 33.3 9.0 10.6 12.5 19.2 27.6 27.6

Transformers Unaffected by the 

TSL (%) 0.01% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers having Well 

Defined Payback (%) 86.43% 100% 100% 100% 100% 100% 100%

Transformers having Undefined 

Payback (%) 13.57% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) 1,369 1,338 1,382 1,443 1,560 1,691 1,691

Mean Operating Cost Savings 

($) 204 154 137 121 109 103 103

Payback of Average 

Transformer 6.7 8.7 10.1 11.9 14.3 16.4 16.4
8-D-4

8-D.1.3 Design Line 1 Results, High A & B Distribution Scenario

Table 8-D.1.6 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

High A & B Distribution Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 28.30% 0.71% 2.14% 4.64% 25.84% 54.42% 54.42%

Transformers with No Change 

in LCC (%) 19.00% 15.21% 12.75% 10.51% 0.16% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 52.70% 84.08% 85.11% 84.85% 74.00% 45.58% 45.58%

Mean LCC Savings ($) 243 1072 1168 1210 790 11 11

Table 8-D.1.7 Summary Payback Period Results for Design Line 1 Representative Unit, 

High A & B Distribution Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 25.3 8.5 10.6 13.0 24.5 33.4 33.4

Transformers Unaffected by the 

TSL (%) 19.01% 15.22% 12.76% 10.52% 0.17% 0.00% 0.00%

Transformers having Well 

Defined Payback (%) 75.68% 84.78% 87.23% 89.28% 97.82% 98.42% 98.42%

Transformers having Undefined 

Payback (%) 5.31% 0.00% 0.01% 0.20% 2.01% 1.58% 1.58%

Mean Incremental First Cost ($) 1,385 1,382 1,413 1,451 1,562 1,692 1,692

Mean Operating Cost Savings 

($) 184 140 129 120 109 103 103

Payback of Average 

Transformer 7.5 9.9 11.0 12.1 14.3 16.4 16.4
8-D-5

8-D.1.4 Design Line 1 Results, Low Loading Scenario 

Table 8-D.1.8 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

Low Loading Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 42.87% 0.55% 2.69% 5.81% 31.99% 67.63% 67.63%

Transformers with No Change 

in LCC (%) 14.22% 11.43% 9.58% 7.92% 0.08% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 42.91% 88.02% 87.73% 86.27% 67.93% 32.37% 32.37%

Mean LCC Savings ($) 111 1101 1120 1066 498 -353 -353

Table 8-D.1.9 Summary Payback Period Results for Design Line 1 Representative Unit, 

Low Loading Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 32.4 8.4 11.2 14.0 25.4 35.3 35.3

Transformers Unaffected by the 

TSL (%) 14.23% 11.44% 9.59% 7.93% 0.09% 0.00% 0.00%

Transformers having Well 

Defined Payback (%) 73.67% 88.56% 90.39% 91.64% 96.95% 97.41% 97.41%

Transformers having Undefined 

Payback (%) 12.10% 0.00% 0.02% 0.43% 2.96% 2.59% 2.59%

Mean Incremental First Cost ($) 1,381 1,371 1,405 1,449 1,562 1,692 1,692

Mean Operating Cost Savings 

($) 169 119 110 104 98 95 95

Payback of Average 

Transformer 8.2 11.5 12.8 13.9 15.9 17.8 17.8
8-D-6

8-D.1.5 Design Line 1 Results, High Loading Scenario 

Table 8-D.1.10 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

High Loading Scenario 

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 24.37% 1.19% 1.65% 3.24% 18.12% 42.63% 42.63%

Transformers with No Change 

in LCC (%) 14.22% 11.43% 9.58% 7.92% 0.08% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 61.41% 87.38% 88.77% 88.84% 81.80% 57.37% 57.37%

Mean LCC Savings ($) 289 1017 1244 1438 1189 490 490

Table 8-D.1.11 Summary Payback Period Results for Design Line 1 Representative Unit, 

High Loading Scenario 

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 22.8 9.0 10.2 11.7 20.6 28.4 28.4

Transformers Unaffected by the 

TSL (%) 14.23% 11.44% 9.59% 7.93% 0.09% 0.01% 0.01%

Transformers having Well 

Defined Payback (%) 81.87% 88.51% 90.40% 91.99% 99.30% 99.60% 99.60%

Transformers having Undefined 

Payback (%) 3.90% 0.05% 0.01% 0.08% 0.61% 0.39% 0.39%

Mean Incremental First Cost ($) 1,381 1,371 1,405 1,449 1,562 1,692 1,692

Mean Operating Cost Savings 

($) 211 171 154 139 121 112 112

Payback of Average 

Transformer 6.5 8.0 9.1 10.4 12.9 15.1 15.1
8-D-7

8-D.1.6 Design Line 1 Results, Low Electricity Price Scenario

Table 8-D.1.12 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

Low Electricity Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 36.25% 1.01% 2.63% 5.16% 29.16% 61.50% 61.50%

Transformers with No Change 

in LCC (%) 14.22% 11.43% 9.58% 7.92% 0.08% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 49.53% 87.56% 87.79% 86.92% 70.76% 38.50% 38.50%

Mean LCC Savings ($) 154 956 1045 1083 636 -159 -159

Table 8-D.1.13 Summary Payback Period Results for Design Line 1 Representative Unit, 

Low Electricity Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 28.9 9.3 11.4 13.8 24.6 33.9 33.9

Transformers Unaffected by the 

TSL (%) 14.23% 11.44% 9.59% 7.93% 0.09% 0.00% 0.00%

Transformers having Well 

Defined Payback (%) 78.01% 88.55% 90.40% 91.87% 98.24% 98.59% 98.59%

Transformers having Undefined 

Payback (%) 7.76% 0.01% 0.01% 0.20% 1.67% 1.41% 1.41%

Mean Incremental First Cost ($) 1,381 1,371 1,405 1,449 1,562 1,692 1,692

Mean Operating Cost Savings 

($) 177 134 122 113 103 97 97

Payback of Average 

Transformer 7.8 10.2 11.5 12.8 15.2 17.4 17.4
8-D-8

8-D.1.7 Design Line 1 Results, High Electricity Price Scenario

Table 8-D.1.14 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

High Electricity Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 30.83% 0.47% 1.68% 3.59% 20.69% 47.79% 47.79%

Transformers with No Change 

in LCC (%) 14.22% 11.43% 9.58% 7.92% 0.08% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 54.95% 88.10% 88.74% 88.49% 79.23% 52.21% 52.21%

Mean LCC Savings ($) 233 1168 1309 1393 999 232 232

Table 8-D.1.15 Summary Payback Period Results for Design Line 1 Representative Unit, 

High Electricity Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 26.0 8.1 9.9 12.0 21.9 30.2 30.2

Transformers Unaffected by the 

TSL (%) 14.23% 11.44% 9.59% 7.93% 0.09% 0.00% 0.00%

Transformers having Well 

Defined Payback (%) 79.13% 88.56% 90.40% 91.92% 98.59% 99.00% 99.00%

Transformers having Undefined 

Payback (%) 6.64% 0.00% 0.01% 0.15% 1.32% 1.00% 1.00%

Mean Incremental First Cost ($) 1,381 1,371 1,405 1,449 1,562 1,692 1,692

Mean Operating Cost Savings 

($) 201 152 139 128 116 109 109

Payback of Average 

Transformer 6.9 9.0 10.1 11.3 13.5 15.5 15.5
8-D-9

8-D.1.8 Design Line 1 Results, No Load Growth Scenario 

Table 8-D.1.16 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

No Load Growth Scenario 

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 36.53% 0.64% 2.24% 4.57% 26.08% 58.21% 58.21%

Transformers with No Change 

in LCC (%) 14.22% 11.43% 9.58% 7.92% 0.08% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 49.25% 87.93% 88.18% 87.51% 73.84% 41.79% 41.79%

Mean LCC Savings ($) 166 1075 1158 1182 713 -92 -92

Table 8-D.1.17 Summary Payback Period Results for Design Line 1 Representative Unit, 

No Load Growth Scenario 

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 27.4 8.6 10.6 12.8 23.2 31.9 31.9

Transformers Unaffected by the 

TSL (%) 14.23% 11.44% 9.59% 7.93% 0.09% 0.00% 0.00%

Transformers having Well 

Defined Payback (%) 78.62% 88.56% 90.40% 91.91% 98.45% 98.80% 98.80%

Transformers having Undefined 

Payback (%) 7.15% 0.00% 0.01% 0.16% 1.46% 1.20% 1.20%

Mean Incremental First Cost ($) 1,381 1,371 1,405 1,449 1,562 1,692 1,692

Mean Operating Cost Savings 

($) 189 143 131 120 109 103 103

Payback of Average 

Transformer 7.3 9.6 10.8 12.0 14.3 16.4 16.4
8-D-10

8-D.1.9 Design Line 1 Results, High Load Growth Scenario

Table 8-D.1.18 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

High Load Growth Scenario 

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 30.30% 0.73% 1.99% 4.09% 22.36% 50.38% 50.38%

Transformers with No Change 

in LCC (%) 14.22% 11.43% 9.58% 7.92% 0.08% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 55.48% 87.84% 88.43% 87.99% 77.56% 49.62% 49.62%

Mean LCC Savings ($) 224 1048 1199 1302 936 181 181

Table 8-D.1.19 Summary Payback Period Results for Design Line 1 Representative Unit, 

High Load Growth Scenario 

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 27.4 8.6 10.6 12.8 23.2 31.9 31.9

Transformers Unaffected by the 

TSL (%) 14.23% 11.44% 9.59% 7.93% 0.09% 0.00% 0.00%

Transformers having Well 

Defined Payback (%) 78.62% 88.56% 90.40% 91.91% 98.45% 98.80% 98.80%

Transformers having Undefined 

Payback (%) 7.15% 0.00% 0.01% 0.16% 1.46% 1.20% 1.20%

Mean Incremental First Cost ($) 1,381 1,371 1,405 1,449 1,562 1,692 1,692

Mean Operating Cost Savings 

($) 189 143 131 120 109 103 103

Payback of Average 

Transformer 7.3 9.6 10.8 12.0 14.3 16.4 16.4
8-D-11

8-D.1.10 Design Line 1 Results, Low Equipment Price Scenario

Table 8-D.1.20 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

Low Equipment Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 28.75% 5.51% 1.55% 2.91% 15.28% 43.77% 43.77%

Transformers with No Change 

in LCC (%) 3.59% 2.58% 2.58% 1.96% 0.12% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 67.66% 91.91% 95.87% 95.13% 84.60% 56.23% 56.23%

Mean LCC Savings ($) 187 947 1327 1397 1009 265 265

Table 8-D.1.21 Summary Payback Period Results for Design Line 1 Representative Unit, 

Low Equipment Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 22.0 11.9 10.5 11.8 18.4 26.1 26.1

Transformers Unaffected by the 

TSL (%) 3.60% 2.59% 2.59% 1.97% 0.13% 0.00% 0.00%

Transformers having Well 

Defined Payback (%) 90.72% 97.40% 97.41% 97.99% 99.52% 99.69% 99.69%

Transformers having Undefined 

Payback (%) 5.68% 0.01% 0.00% 0.04% 0.35% 0.31% 0.31%

Mean Incremental First Cost ($) 1,411 1,399 1,408 1,450 1,562 1,692 1,692

Mean Operating Cost Savings 

($) 204 154 130 120 109 103 103

Payback of Average 

Transformer 6.9 9.1 10.8 12.1 14.3 16.4 16.4
8-D-12

8-D.1.11 Design Line 1 Results, High Equipment Price Scenario

Table 8-D.1.22 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

High Equipment Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 37.91% 1.55% 2.07% 4.11% 24.22% 58.81% 58.81%

Transformers with No Change 

in LCC (%) 3.89% 3.44% 3.17% 2.53% 0.02% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 58.20% 95.01% 94.76% 93.36% 75.76% 41.19% 41.19%

Mean LCC Savings ($) 154 1114 1221 1266 773 -105 -105

Table 8-D.1.23 Summary Payback Period Results for Design Line 1 Representative Unit,

High Equipment Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 27.3 9.7 11.2 13.1 21.2 30.2 30.2

Transformers Unaffected by the 

TSL (%) 3.90% 3.45% 3.18% 2.54% 0.03% 0.00% 0.00%

Transformers having Well 

Defined Payback (%) 88.99% 96.55% 96.82% 97.42% 99.54% 99.65% 99.65%

Transformers having Undefined 

Payback (%) 7.11% 0.00% 0.00% 0.04% 0.43% 0.34% 0.34%

Mean Incremental First Cost ($) 1,383 1,365 1,401 1,447 1,561 1,691 1,691

Mean Operating Cost Savings 

($) 198 145 131 121 109 103 103

Payback of Average 

Transformer 7.0 9.4 10.7 12.0 14.3 16.4 16.4
8-D-13

8-D.1.12 Design Line 1 Results, Low Electricity Price Trend Scenario

Table 8-D.1.24 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

Low Electricity Price Trend Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 35.32% 0.75% 2.26% 4.72% 27.40% 59.77% 59.77%

Transformers with No Change 

in LCC (%) 14.22% 11.43% 9.58% 7.92% 0.08% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 50.46% 87.82% 88.16% 87.36% 72.52% 40.23% 40.23%

Mean LCC Savings ($) 163 977 1073 1117 677 -114 -114

Table 8-D.1.25 Summary Payback Period Results for Design Line 1 Representative Unit, 

Low Electricity Price Trend Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 28.1 8.9 11.0 13.3 23.8 32.8 32.8

Transformers Unaffected by the 

TSL (%) 14.23% 11.44% 9.59% 7.93% 0.09% 0.00% 0.00%

Transformers having Well 

Defined Payback (%) 78.62% 88.56% 90.40% 91.91% 98.45% 98.80% 98.80%

Transformers having Undefined 

Payback (%) 7.15% 0.00% 0.01% 0.16% 1.46% 1.20% 1.20%

Mean Incremental First Cost ($) 1,381 1,371 1,405 1,449 1,562 1,692 1,692

Mean Operating Cost Savings 

($) 183 139 127 117 106 100 100

Payback of Average 

Transformer 7.6 9.9 11.1 12.4 14.7 16.9 16.9
8-D-14

8-D.1.13 Design Line 1 Results, High Electricity Price Trend Scenario

Table 8-D.1.26 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit, 

High Electricity Price Trend Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.17% 99.27% 99.36% 99.46% 99.55% 99.60% 99.60%

Transformers with Net LCC 

Cost (%) 31.81% 0.61% 1.93% 4.02% 22.00% 50.21% 50.21%

Transformers with No Change 

in LCC (%) 14.22% 11.43% 9.58% 7.92% 0.08% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 53.97% 87.96% 88.49% 88.06% 77.92% 49.79% 49.79%

Mean LCC Savings ($) 221 1139 1272 1348 945 173 173

Table 8-D.1.27 Summary Payback Period Results for Design Line 1 Representative Unit, 

High Electricity Price Trend Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 26.8 8.4 10.4 12.5 22.6 31.2 31.2

Transformers Unaffected by the 

TSL (%) 14.23% 11.44% 9.59% 7.93% 0.09% 0.00% 0.00%

Transformers having Well 

Defined Payback (%) 78.62% 88.56% 90.40% 91.91% 98.45% 98.80% 98.80%

Transformers having Undefined 

Payback (%) 7.15% 0.00% 0.01% 0.16% 1.46% 1.20% 1.20%

Mean Incremental First Cost ($) 1,381 1,371 1,405 1,449 1,562 1,692 1,692

Mean Operating Cost Savings 

($) 194 147 134 123 112 105 105

Payback of Average 

Transformer 7.1 9.3 10.5 11.8 14.0 16.0 16.0
8-D-15

8-D.2 DESIGN LINE 7 RESULTS 

Figure 8-D.2.1 Average LCC Savings ($) by Scenario for Design 

Line 7

Table 8-D.2.1 LCC Savings ($), Summary Table for Design Line 7 

Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Baseline 243 533 626 658 817 914 -783

Low A & B Distribution 270 577 671 705 856 958 -739

High A & B Distribution 1 131 223 237 461 511 -1176

Low Loading 244 403 450 496 771 712 -1320

High Loading 244 598 715 739 839 1015 -515

Low Electricity Price 215 468 522 508 554 619 -1099

High Electricity Price 272 598 730 808 1080 1208 -467

Medium Load Growth 243 588 702 727 837 1000 -552

High Load Growth 243 652 787 806 859 1098 -291

Low Equipment Price 328 647 867 1050 1003 785 -843

High Equipment Price 320 607 726 815 561 499 -1540

Low Electricity Price Trend 224 472 532 534 628 684 -1067

High Electricity Price Trend 260 584 705 763 977 1108 -542

-2000

-1500

-1000

-500

0

500

1000

1500

98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Average LCC Savings ($)

Transformer Efficiency (%)

Baseline

Low A & B Distribution Scenario

High A & B Distribution Scenario

Low Loading Scenario

High Loading Scenario

Low Electricity Price Scenario

High Electricity Price Scenario

Medium Load Grow th Scenario

High Load Grow th Scenario

Low Equipment Price Scenario

High Equipment Price Scenario

Low Electricity Price Trend Scenario

High Electricity Price Trend Scenario
8-D-16

8-D.2.1 Design Line 7 Results, Baseline Scenario

Table 8-D.2.2 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

Baseline Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.13% 10.18% 13.43% 15.57% 17.66% 19.85% 73.52%

Transformers with No Change 

in LCC (%) 63.63% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 36.24% 89.82% 86.57% 84.43% 82.34% 80.15% 26.48%

Mean LCC Savings ($) 243 533 626 658 817 914 -783

Table 8-D.2.3 Summary Payback Period Results for Design Line 7 Representative Unit, 

Baseline Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.3 7.8 9.8 11.2 12.3 12.7 24.0

Transformers Unaffected by the 

TSL (%) 36.19% 99.76% 100% 100% 100% 100% 100%

Transformers having Well 

Defined Payback (%) 63.64% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) -4 164 406 654 1,143 1,450 3,296

Mean Operating Cost Savings 

($) 14 43 66 87 132 160 199

Payback of Average 

Transformer -0.3 3.8 6.2 7.6 8.7 9.0 16.5
8-D-17

8-D.2.2 Design Line 7 Results, Low A & B Distribution Scenario

Table 8-D.2.4 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

Low A & B Distribution Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.13% 10.17% 13.25% 15.34% 17.55% 19.32% 72.44%

Transformers with No Change 

in LCC (%) 63.64% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 36.23% 89.83% 86.75% 84.66% 82.45% 80.68% 27.56%

Mean LCC Savings ($) 270 577 671 705 856 958 -739

Table 8-D.2.5 Summary Payback Period Results for Design Line 7 Representative Unit, 

Low A & B Distribution Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.3 7.8 9.7 11.0 12.2 12.6 23.7

Transformers Unaffected by the 

TSL (%) 36.17% 99.75% 99.99% 100% 100% 100% 100%

Transformers having Well 

Defined Payback (%) 63.65% 0.01% 0.01% 0.00% 0.00% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) -4 171 414 662 1,151 1,457 3,306

Mean Operating Cost Savings 

($) 15 46 69 90 135 164 202

Payback of Average 

Transformer -0.3 3.7 6.0 7.4 8.5 8.9 16.3
8-D-18

8-D.2.3 Design Line 7 Results, High A & B Distribution Scenario

Table 8-D.2.6 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

High A & B Distribution Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.04% 17.12% 26.94% 30.60% 26.32% 28.27% 83.69%

Transformers with No Change 

in LCC (%) 99.76% 30.69% 0.13% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 0.20% 52.19% 72.93% 69.40% 73.68% 71.73% 16.31%

Mean LCC Savings ($) 1 131 223 237 461 511 -1176

Table 8-D.2.7 Summary Payback Period Results for Design Line 7 Representative Unit, 

High A & B Distribution Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 4.1 12.8 13.5 14.7 14.1 14.4 26.9

Transformers Unaffected by the 

TSL (%) 0.22% 67.07% 99.68% 99.99% 99.99% 100% 100%

Transformers having Well 

Defined Payback (%) 99.77% 30.70% 0.14% 0.01% 0.01% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) 0 96 330 586 1,073 1,387 3,200

Mean Operating Cost Savings 

($) 0 15 37 57 107 133 169

Payback of Average 

Transformer 2.1 6.6 9.0 10.2 10.1 10.5 18.9
8-D-19

8-D.2.4 Design Line 7 Results, Low Loading Scenario 

Table 8-D.2.8 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

Low Loading Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.03% 16.33% 20.27% 21.14% 18.81% 24.72% 86.55%

Transformers with No Change 

in LCC (%) 63.63% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 36.34% 83.67% 79.73% 78.86% 81.19% 75.28% 13.45%

Mean LCC Savings ($) 244 403 450 496 771 712 -1320

Table 8-D.2.9 Summary Payback Period Results for Design Line 7 Representative Unit, 

Low Loading Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.4 10.3 11.6 12.6 12.5 13.7 27.8

Transformers Unaffected by the

TSL (%) 36.34% 99.47% 100% 100% 100% 100% 100%

Transformers having Well 

Defined Payback (%) 63.64% 0.01% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) -4 164 406 654 1,143 1,450 3,296

Mean Operating Cost Savings 

($) 14 35 56 77 129 149 168

Payback of Average 

Transformer -0.3 4.7 7.3 8.5 8.8 9.7 19.6
8-D-20

8-D.2.5 Design Line 7 Results, High Loading Scenario 

Table 8-D.2.10 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

High Loading Scenario 

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.15% 8.01% 11.26% 13.61% 17.20% 17.69% 67.09%

Transformers with No Change 

in LCC (%) 63.63% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 36.22% 91.99% 88.74% 86.39% 82.80% 82.31% 32.91%

Mean LCC Savings ($) 244 598 715 739 839 1015 -515

Table 8-D.2.11 Summary Payback Period Results for Design Line 7 Representative Unit, 

High Loading Scenario 

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.4 7.0 9.1 10.7 12.2 12.3 22.4

Transformers Unaffected by the 

TSL (%) 36.12% 99.81% 100% 100% 100% 100% 100%

Transformers having Well 

Defined Payback (%) 63.64% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) -4 164 406 654 1,143 1,450 3,296

Mean Operating Cost Savings 

($) 14 46 71 91 133 166 214

Payback of Average 

Transformer -0.3 3.5 5.7 7.2 8.6 8.7 15.4
8-D-21

8-D.2.6 Design Line 7 Results, Low Electricity Price Scenario

Table 8-D.2.12 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

Low Electricity Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.14% 11.74% 16.79% 20.59% 25.09% 27.23% 80.27%

Transformers with No Change 

in LCC (%) 63.63% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 36.23% 88.26% 83.21% 79.41% 74.91% 72.77% 19.73%

Mean LCC Savings ($) 215 468 522 508 554 619 -1099

Table 8-D.2.13 Summary Payback Period Results for Design Line 7 Representative Unit, 

Low Electricity Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.4 8.4 10.8 12.4 13.8 14.2 26.5

Transformers Unaffected by the 

TSL (%) 36.15% 99.80% 100% 100% 100% 100% 100%

Transformers having Well 

Defined Payback (%) 63.64% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) -4 164 406 654 1,143 1,450 3,296

Mean Operating Cost Savings 

($) 12 39 60 78 117 143 181

Payback of Average 

Transformer -0.3 4.2 6.8 8.4 9.8 10.1 18.2
8-D-22

8-D.2.7 Design Line 7 Results, High Electricity Price Scenario

Table 8-D.2.14 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

High Electricity Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.09% 8.84% 10.57% 11.95% 13.06% 14.21% 66.00%

Transformers with No Change 

in LCC (%) 63.63% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 36.28% 91.16% 89.43% 88.05% 86.94% 85.79% 34.00%

Mean LCC Savings ($) 272 598 730 808 1080 1208 -467

Table 8-D.2.15 Summary Payback Period Results for Design Line 7 Representative Unit, 

High Electricity Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.3 7.2 9.0 10.2 11.0 11.5 21.9

Transformers Unaffected by the 

TSL (%) 36.23% 99.69% 100% 100% 100% 100% 100%

Transformers having Well 

Defined Payback (%) 63.64% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) -4 164 406 654 1,143 1,450 3,296

Mean Operating Cost Savings 

($) 16 46 72 95 147 177 217

Payback of Average 

Transformer -0.3 3.5 5.7 6.9 7.8 8.2 15.2
8-D-23

8-D.2.8 Design Line 7 Results, Medium Load Growth Scenario

Table 8-D.2.16 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

Medium Load Growth Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.22% 8.48% 11.85% 14.29% 17.27% 18.40% 68.27%

Transformers with No Change 

in LCC (%) 63.63% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 36.15% 91.52% 88.15% 85.71% 82.73% 81.60% 31.73%

Mean LCC Savings ($) 243 588 702 727 837 1000 -552

Table 8-D.2.17 Summary Payback Period Results for Design Line 7 Representative Unit, 

Medium Load Growth Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.3 7.8 9.8 11.2 12.3 12.7 24.0

Transformers Unaffected by the 

TSL (%) 36.19% 99.76% 100% 100% 100% 100% 100%

Transformers having Well 

Defined Payback (%) 63.64% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) -4 164 406 654 1,143 1,450 3,296

Mean Operating Cost Savings 

($) 14 43 66 87 132 160 199

Payback of Average 

Transformer -0.3 3.8 6.2 7.6 8.7 9.0 16.5
8-D-24

8-D.2.9 Design Line 7 Results, High Load Growth Scenario 

Table 8-D.2.18 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

High Load Growth Scenario 

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.41% 7.12% 10.32% 12.92% 17.03% 17.10% 62.55%

Transformers with No Change 

in LCC (%) 63.63% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 35.96% 92.88% 89.68% 87.08% 82.97% 82.90% 37.45%

Mean LCC Savings ($) 243 652 787 806 859 1098 -291

Table 8-D.2.19 Summary Payback Period Results for Design Line 7 Representative Unit, 

High Load Growth Scenario 

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.3 7.8 9.8 11.2 12.3 12.7 24.0

Transformers Unaffected by the 

TSL (%) 36.19% 99.76% 100% 100% 100% 100% 100%

Transformers having Well 

Defined Payback (%) 63.64% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) -4 164 406 654 1,143 1,450 3,296

Mean Operating Cost Savings 

($) 14 43 66 87 132 160 199

Payback of Average 

Transformer -0.3 3.8 6.2 7.6 8.7 9.0 16.5
8-D-25

8-D.2.10 Design Line 7 Results, Low Equipment Price Scenario

Table 8-D.2.20 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

Low Equipment Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.21% 6.02% 3.68% 4.00% 15.23% 24.42% 74.51%

Transformers with No Change 

in LCC (%) 51.21% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 48.58% 93.98% 96.32% 96.00% 84.77% 75.58% 25.49%

Mean LCC Savings ($) 328 647 867 1050 1003 785 -843

Table 8-D.2.21 Summary Payback Period Results for Design Line 7 Representative Unit, 

Low Equipment Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.3 5.8 6.0 6.6 11.1 13.7 24.2

Transformers Unaffected by the 

TSL (%) 48.46% 99.73% 99.98% 100% 100% 100% 100%

Transformers having Well 

Defined Payback (%) 51.22% 0.01% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) -5 133 276 412 1,020 1,592 3,390

Mean Operating Cost Savings 

($) 19 47 70 91 132 164 203

Payback of Average 

Transformer -0.3 2.8 3.9 4.5 7.7 9.7 16.7
8-D-26

8-D.2.11 Design Line 7 Results, High Equipment Price Scenario

Table 8-D.2.22 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

High Equipment Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.28% 8.91% 9.28% 9.83% 31.48% 34.99% 84.75%

Transformers with No Change 

in LCC (%) 52.70% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 47.02% 91.09% 90.72% 90.17% 68.52% 65.01% 15.25%

Mean LCC Savings ($) 320 607 726 815 561 499 -1540

Table 8-D.2.23 Summary Payback Period Results for Design Line 7 Representative Unit, 

High Equipment Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.4 7.0 8.4 9.4 14.8 15.6 28.1

Transformers Unaffected by the 

TSL (%) 46.81% 99.72% 99.98% 100% 100% 100% 100%

Transformers having Well 

Defined Payback (%) 52.71% 0.01% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) -6 150 360 567 1,345 1,791 3,897

Mean Operating Cost Savings 

($) 18 46 68 89 132 163 202

Payback of Average 

Transformer -0.3 3.3 5.3 6.4 10.2 11.0 19.3
8-D-27

8-D.2.12 Design Line 7 Results, Low Electricity Price Trend Scenario

Table 8-D.2.24 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

Low Electricity Price Trend Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.13% 11.56% 16.00% 19.27% 22.42% 25.01% 80.20%

Transformers with No Change 

in LCC (%) 63.63% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 36.24% 88.44% 84.00% 80.73% 77.58% 74.99% 19.80%

Mean LCC Savings ($) 224 472 532 534 628 684 -1067

Table 8-D.2.25 Summary Payback Period Results for Design Line 7 Representative Unit, 

Low Electricity Price Trend Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.3 8.1 10.2 11.7 12.8 13.2 24.9

Transformers Unaffected by the 

TSL (%) 36.19% 99.76% 100% 100% 100% 100% 100%

Transformers having Well 

Defined Payback (%) 63.64% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) -4 164 406 654 1,143 1,450 3,296

Mean Operating Cost Savings 

($) 13 41 63 83 127 154 191

Payback of Average 

Transformer -0.3 4.0 6.4 7.9 9.0 9.4 17.2
8-D-28

8-D.2.13 Design Line 7 Results, High Electricity Price Trend Scenario

Table 8-D.2.26 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit, 

High Electricity Price Trend Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 98.23% 98.47% 98.60% 98.70% 98.93% 99.17% 99.40%

Transformers with Net LCC 

Cost (%) 0.14% 8.94% 11.50% 13.02% 14.41% 15.88% 67.81%

Transformers with No Change 

in LCC (%) 63.63% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers with Net LCC 

Benefit (%) 36.23% 91.06% 88.50% 86.98% 85.59% 84.12% 32.19%

Mean LCC Savings ($) 260 584 705 763 977 1108 -542

Table 8-D.2.27 Summary Payback Period Results for Design Line 7 Representative Unit, 

High Electricity Price Trend Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.3 7.5 9.5 10.8 11.9 12.3 23.2

Transformers Unaffected by the 

TSL (%) 36.19% 99.76% 100% 100% 100% 100% 100%

Transformers having Well 

Defined Payback (%) 63.64% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Transformers having Undefined 

Payback (%) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Mean Incremental First Cost ($) -4 164 406 654 1,143 1,450 3,296

Mean Operating Cost Savings 

($) 14 44 68 89 136 165 205

Payback of Average 

Transformer -0.3 3.7 6.0 7.3 8.4 8.8 16.1
8-D-29

8-D.3 DESIGN LINE 13 RESULTS

Figure 8-D.3.1 Average LCC Savings ($) by Scenario for Design 

Line 13

Table 8-D.3.1 LCC Savings ($), Summary Table for Design Line 13 

Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Baseline 3050 4076 10600 11919 -9581 NA NA

Low A & B Distribution 3556 5267 10598 12301 -9137 NA NA

High A & B Distribution 2924 3778 10601 11824 -9692 NA NA

Low Loading 2670 6992 13986 11583 -13353 NA NA

High Loading 3207 2733 9113 12071 -7919 NA NA

Low Electricity Price 1831 1137 6009 6548 -15556 NA NA

High Electricity Price 4270 7015 15191 17290 -3606 NA NA

Medium Load Growth 3218 2723 9059 12077 -7861 NA NA

High Load Growth 3406 1196 7315 12255 -5915 NA NA

Low Equipment Price 4310 5367 5489 7458 -12321 NA NA

High Equipment Price 2940 401 4455 4909 -20166 NA NA

Low Electricity Price Trend 2158 2272 7699 8131 -14105 NA NA

High Electricity Price Trend 3803 5597 13044 15117 -5756 NA NA

-25000

-20000

-15000

-10000

-5000

0

5000

10000

15000

20000

99.25% 99.35% 99.46% 99.56% 99.66%

Average LCC Savings ($)

Transformer Efficiency (%)

Baseline

Low A & B Distribution Scenario

High A & B Distribution Scenario

Low Loading Scenario

High Loading Scenario

Low Electricity Price Scenario

High Electricity Price Scenario

Medium Load Grow th Scenario

High Load Grow th Scenario

Low Equipment Price Scenario

High Equipment Price Scenario

Low Electricity Price Trend Scenario

High Electricity Price Trend Scenario
8-D-30

8-D.3.1 Design Line 13 Results, Baseline Scenario

Table 8-D.3.2 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Baseline Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 25.94% 35.56% 24.35% 23.89% 72.07% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 74.06% 64.44% 75.65% 76.11% 27.93% NA NA

Mean LCC Savings ($) 3050 4076 10600 11919 -9581 NA NA

Table 8-D.3.3 Summary Payback Period Results for Design Line 13 Representative 

Unit, Baseline Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 14.4 17.4 13.7 13.8 21.8 NA NA

Transformers Unaffected by the 

TSL (%) 0.45% 1.17% 0.01% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 99.11% 97.67% 99.99% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.44% 1.16% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 5,878 13,325 18,456 25,644 48,706 NA NA

Mean Operating Cost Savings 

($) 621 1,256 2,018 2,641 3,158 NA NA

Payback of Average 

Transformer 9.5 10.6 9.1 9.7 15.4 NA NA
8-D-31

8-D.3.2 Design Line 13 Results, Low A & B Distribution Scenario

Table 8-D.3.4 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Low A & B Distribution Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 22.54% 30.78% 24.72% 23.52% 71.13% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 77.46% 69.22% 75.28% 76.48% 28.87% NA NA

Mean LCC Savings ($) 3556 5267 10598 12301 -9137 NA NA

Table 8-D.3.5 Summary Payback Period Results for Design Line 13 Representative 

Unit, Low A & B Distribution Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 13.5 16.0 13.8 13.7 21.7 NA NA

Transformers Unaffected by the 

TSL (%) 0.30% 0.81% 0.01% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 99.41% 98.39% 99.99% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.29% 0.80% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 5,857 13,239 18,340 25,644 48,776 NA NA

Mean Operating Cost Savings 

($) 648 1,318 2,009 2,663 3,189 NA NA

Payback of Average 

Transformer 9.0 10.0 9.1 9.6 15.3 NA NA
8-D-32

8-D.3.3 Design Line 13 Results, High A & B Distribution Scenario

Table 8-D.3.6 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, High A & B Distribution Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 27.43% 36.80% 24.35% 24.04% 72.19% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 72.57% 63.20% 75.65% 75.96% 27.81% NA NA

Mean LCC Savings ($) 2924 3778 10601 11824 -9692 NA NA

Table 8-D.3.7 Summary Payback Period Results for Design Line 13 Representative 

Unit, High A & B Distribution Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 14.8 18.0 13.7 13.8 21.9 NA NA

Transformers Unaffected by the 

TSL (%) 0.80% 1.71% 0.01% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 98.41% 96.59% 99.99% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.79% 1.70% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 5,883 13,347 18,486 25,644 48,689 NA NA

Mean Operating Cost Savings 

($) 615 1,240 2,020 2,635 3,151 NA NA

Payback of Average 

Transformer 9.6 10.8 9.2 9.7 15.5 NA NA
8-D-33

8-D.3.4 Design Line 13 Results, Low Loading Scenario 

Table 8-D.3.8 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Low Loading Scenario 

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 29.56% 26.61% 17.66% 24.40% 78.83% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 70.44% 73.39% 82.34% 75.60% 21.17% NA NA

Mean LCC Savings ($) 2670 6992 13986 11583 -13353 NA NA

Table 8-D.3.9 Summary Payback Period Results for Design Line 13 Representative 

Unit, Low Loading Scenario 

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 15.1 14.4 12.2 13.9 23.4 NA NA

Transformers Unaffected by the 

TSL (%) 0.11% 0.15% 0.00% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 99.79% 99.71% 100% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.10% 0.14% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 5,878 13,325 18,456 25,644 48,706 NA NA

Mean Operating Cost Savings 

($) 599 1,424 2,213 2,621 2,941 NA NA

Payback of Average 

Transformer 9.8 9.4 8.3 9.8 16.6 NA NA
8-D-34

8-D.3.5 Design Line 13 Results, High Loading Scenario 

Table 8-D.3.10 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, High Loading Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 25.57% 39.45% 28.18% 23.78% 68.80% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 74.43% 60.55% 71.82% 76.22% 31.20% NA NA

Mean LCC Savings ($) 3207 2733 9113 12071 -7919 NA NA

Table 8-D.3.11 Summary Payback Period Results for Design Line 13 Representative 

Unit, High Loading Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 14.4 19.0 14.6 13.7 21.2 NA NA

Transformers Unaffected by the 

TSL (%) 0.97% 2.83% 0.00% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 98.07% 94.35% 100% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.96% 2.82% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 5,878 13,325 18,456 25,644 48,706 NA NA

Mean Operating Cost Savings 

($) 630 1,178 1,932 2,649 3,254 NA NA

Payback of Average 

Transformer 9.3 11.3 9.6 9.7 15.0 NA NA
8-D-35

8-D.3.6 Design Line 13 Results, Low Electricity Price Scenario

Table 8-D.3.12 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Low Electricity Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 34.39% 46.54% 34.12% 34.42% 82.10% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 65.61% 53.46% 65.88% 65.58% 17.90% NA NA

Mean LCC Savings ($) 1831 1137 6009 6548 -15556 NA NA

Table 8-D.3.13 Summary Payback Period Results for Design Line 13 Representative 

Unit, Low Electricity Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 16.2 20.1 15.8 15.5 24.4 NA NA

Transformers Unaffected by the 

TSL (%) 0.55% 1.50% 0.01% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 98.91% 97.01% 99.99% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.54% 1.49% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 5,878 13,325 18,456 25,644 48,706 NA NA

Mean Operating Cost Savings 

($) 551 1,086 1,754 2,332 2,814 NA NA

Payback of Average 

Transformer 10.7 12.3 10.5 11.0 17.3 NA NA
8-D-36

8-D.3.7 Design Line 13 Results, High Electricity Price Scenario

Table 8-D.3.14 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, High Electricity Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 20.15% 28.07% 18.12% 16.93% 59.98% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 79.85% 71.93% 81.88% 83.07% 40.02% NA NA

Mean LCC Savings ($) 4270 7015 15191 17290 -3606 NA NA

Table 8-D.3.15 Summary Payback Period Results for Design Line 13 Representative 

Unit, High Electricity Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 12.9 15.4 12.1 12.4 19.7 NA NA

Transformers Unaffected by the 

TSL (%) 0.39% 0.87% 0.01% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 99.23% 98.27% 99.99% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.38% 0.86% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 5,878 13,325 18,456 25,644 48,706 NA NA

Mean Operating Cost Savings 

($) 691 1,425 2,282 2,950 3,502 NA NA

Payback of Average 

Transformer 8.5 9.4 8.1 8.7 13.9 NA NA
8-D-37

8-D.3.8 Design Line 13 Results, Medium Load Growth Scenario

Table 8-D.3.16 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Medium Load Growth Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 25.71% 39.52% 28.31% 23.78% 68.40% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 74.29% 60.48% 71.69% 76.22% 31.60% NA NA

Mean LCC Savings ($) 3218 2723 9059 12077 -7861 NA NA

Table 8-D.3.17 Summary Payback Period Results for Design Line 13 Representative 

Unit, Medium Load Growth Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 14.4 17.4 13.7 13.8 21.8 NA NA

Transformers Unaffected by the 

TSL (%) 0.45% 1.17% 0.01% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 99.11% 97.67% 99.99% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.44% 1.16% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 5,878 13,325 18,456 25,644 48,706 NA NA

Mean Operating Cost Savings 

($) 621 1,256 2,018 2,641 3,158 NA NA

Payback of Average 

Transformer 9.5 10.6 9.1 9.7 15.4 NA NA
8-D-38

8-D.3.9 Design Line 13 Results, High Load Growth Scenario 

Table 8-D.3.18 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, High Load Growth Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 25.65% 43.23% 33.12% 23.58% 64.27% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 74.35% 56.77% 66.88% 76.42% 35.73% NA NA

Mean LCC Savings ($) 3406 1196 7315 12255 -5915 NA NA

Table 8-D.3.19 Summary Payback Period Results for Design Line 13 Representative 

Unit, High Load Growth Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 14.4 17.4 13.7 13.8 21.8 NA NA

Transformers Unaffected by the 

TSL (%) 0.45% 1.17% 0.01% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 99.11% 97.67% 99.99% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.44% 1.16% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 5,878 13,325 18,456 25,644 48,706 NA NA

Mean Operating Cost Savings 

($) 621 1,256 2,018 2,641 3,158 NA NA

Payback of Average 

Transformer 9.5 10.6 9.1 9.7 15.4 NA NA
8-D-39

8-D.3.10 Design Line 13 Results, Low Equipment Price Scenario

Table 8-D.3.20 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Low Equipment Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 15.11% 26.48% 38.12% 34.03% 76.27% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 84.89% 73.52% 61.88% 65.97% 23.73% NA NA

Mean LCC Savings ($) 4310 5367 5489 7458 -12321 NA NA

Table 8-D.3.21 Summary Payback Period Results for Design Line 13 Representative 

Unit, Low Equipment Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 11.5 14.2 16.5 15.5 22.8 NA NA

Transformers Unaffected by the 

TSL (%) 0.02% 0.00% 0.01% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 99.97% 100% 99.99% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.01% 0.00% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 4,759 12,614 21,792 28,648 50,509 NA NA

Mean Operating Cost Savings 

($) 607 1,274 1,980 2,615 3,139 NA NA

Payback of Average 

Transformer 7.8 9.9 11.0 11.0 16.1 NA NA
8-D-40

8-D.3.11 Design Line 13 Results, High Equipment Price Scenario

Table 8-D.3.22 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, High Equipment Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 25.60% 50.97% 41.54% 40.61% 84.43% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 74.40% 49.03% 58.46% 59.39% 15.57% NA NA

Mean LCC Savings ($) 2940 401 4455 4909 -20166 NA NA

Table 8-D.3.23 Summary Payback Period Results for Design Line 13 Representative 

Unit, High Equipment Price Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 14.0 19.3 17.2 16.6 25.4 NA NA

Transformers Unaffected by the 

TSL (%) 0.02% 0.24% 0.01% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 99.97% 99.53% 99.99% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.01% 0.23% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 6,133 16,353 22,991 30,996 56,753 NA NA

Mean Operating Cost Savings 

($) 633 1,276 2,012 2,648 3,166 NA NA

Payback of Average 

Transformer 9.7 12.8 11.4 11.7 17.9 NA NA
8-D-41

8-D.3.12 Design Line 13 Results, Low Electricity Price Trend Scenario

Table 8-D.3.24 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, Low Electricity Price Trend Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 31.34% 42.10% 29.62% 30.63% 80.14% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 68.66% 57.90% 70.38% 69.37% 19.86% NA NA

Mean LCC Savings ($) 2158 2272 7699 8131 -14105 NA NA

Table 8-D.3.25 Summary Payback Period Results for Design Line 13 Representative 

Unit, Low Electricity Price Trend Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 15.0 18.1 14.2 14.3 22.7 NA NA

Transformers Unaffected by the 

TSL (%) 0.45% 1.17% 0.01% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 99.11% 97.67% 99.99% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.44% 1.16% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 5,878 13,325 18,456 25,644 48,706 NA NA

Mean Operating Cost Savings 

($) 597 1,206 1,939 2,538 3,036 NA NA

Payback of Average 

Transformer 9.8 11.0 9.5 10.1 16.0 NA NA
8-D-42

8-D.3.13 Design Line 13 Results, High Electricity Price Trend Scenario

Table 8-D.3.26 Summary Life-Cycle Cost Results for Design Line 13 Representative 

Unit, High Electricity Price Trend Scenario

Candidate Standard Level

1 2 3 4 5 6 7 

Efficiency (%) 99.25% 99.35% 99.46% 99.56% 99.66% NA NA

Transformers with Net LCC 

Cost (%) 21.97% 31.35% 20.77% 19.16% 63.97% NA NA

Transformers with No Change 

in LCC (%) 0.00% 0.00% 0.00% 0.00% 0.00% NA NA

Transformers with Net LCC 

Benefit (%) 78.03% 68.65% 79.23% 80.84% 36.03% NA NA

Mean LCC Savings ($) 3803 5597 13044 15117 -5756 NA NA

Table 8-D.3.27 Summary Payback Period Results for Design Line 13 Representative 

Unit, High Electricity Price Trend Scenario

Candidate Standard Level

1 2 3 4 5 6 7

Mean Payback (Years) 13.9 16.9 13.3 13.3 21.1 NA NA

Transformers Unaffected by the 

TSL (%) 0.45% 1.17% 0.01% 0.00% 0.00% NA NA

Transformers having Well 

Defined Payback (%) 99.11% 97.67% 99.99% 100% 100% NA NA

Transformers having Undefined 

Payback (%) 0.44% 1.16% 0.00% 0.00% 0.00% NA NA

Mean Incremental First Cost ($) 5,878 13,325 18,456 25,644 48,706 NA NA

Mean Operating Cost Savings 

($) 640 1,293 2,078 2,720 3,254 NA NA

Payback of Average 

Transformer 9.2 10.3 8.9 9.4 15.0 NA NA