dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-i

APPENDIX 8-A. LIFE-CYCLE COST AND PAYBACK PERIOD RESULTS

TABLE OF CONTENTS

8-C.1 LIFE-CYCLE COST & PAYBACK RESULTS FOR LIQUID-IMMERSED 

TRANSFORMERS, DESIGN LINES 1-5 ............................................................ 8-C-1

8-C.1.1 Design Line 1 Results............................................................................................ 8-C-1

8-C.1.2 Design Line 2 Results............................................................................................ 8-C-3

8-C.1.3 Design Line 3 Results............................................................................................ 8-C-5

8-C.1.4 Design Line 4 Results............................................................................................ 8-C-7

8-C.1.5 Design Line 5 Results............................................................................................ 8-C-9

8-C.2 LIFE-CYCLE COST & PAYBACK RESULTS FOR DRY TYPE

TRANSFORMERS, DESIGN LINES 6-13 ........................................................ 8-C-11

8-C.2.1 Design Line 6 Results.......................................................................................... 8-C-11

8-C.2.2 Design Line 7 Results.......................................................................................... 8-C-13

8-C.2.3 Design Line 8 Results.......................................................................................... 8-C-15

8-C.2.4 Design Line 9 Results.......................................................................................... 8-C-17

8-C.2.5 Design Line 10 Results........................................................................................ 8-C-19

8-C.2.6 Design Line 11 Results........................................................................................ 8-C-21

8-C.2.7 Design Line 12 Results........................................................................................ 8-C-23

8-C.2.8 Design Line 13A Results..................................................................................... 8-C-26

8-C.2.9 Design Line 13B Results ..................................................................................... 8-C-28

LIST OF TABLES

Table 8-C.1.1 Summary Life-Cycle Cost Results for Design Line 1 Representative 

Unit ............................................................................................................ 8-C-1

Table 8-C.1.2 Summary Payback Period Results for Design Line 1 Representative 

Unit ............................................................................................................ 8-C-2

Table 8-C.1.3 Summary Life-Cycle Cost Results for Design Line 2 Representative 

Unit ............................................................................................................ 8-C-3

Table 8-C.1.4 Summary Payback Period Results for Design Line 2 Representative 

Unit ............................................................................................................ 8-C-4

Table 8-C.1.5 Summary Life-Cycle Cost Results for Design Line 3 Representative 

Unit ............................................................................................................ 8-C-5

Table 8-C.1.6 Summary Payback Period Results for Design Line 3 Representative 

Unit ............................................................................................................ 8-C-6

Table 8-C.1.7 Summary Life-Cycle Cost Results for Design Line 4 Representative 

Unit ............................................................................................................ 8-C-7

Table 8-C.1.8 Summary Payback Period Results for Design Line 4 Representative 

Unit ............................................................................................................ 8-C-8

Table 8-C.1.9 Summary Life-Cycle Cost Results for Design Line 5 Representative 

Unit ............................................................................................................ 8-C-9
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-ii

Table 8-C.1.10 Summary Payback Period Results for Design Line 5 Representative 

Unit .......................................................................................................... 8-C-10

Table 8-C.2.1 Summary Life-Cycle Cost Results for Design Line 6 Representative 

Unit .......................................................................................................... 8-C-11

Table 8-C.2.2 Summary Payback Period Results for Design Line 6 Representative 

Unit .......................................................................................................... 8-C-12

Table 8-C.2.3 Summary Life-Cycle Cost Results for Design Line 7 Representative 

Unit .......................................................................................................... 8-C-13

Table 8-C.2.4 Summary Payback Period Results for Design Line 7 Representative 

Unit .......................................................................................................... 8-C-14

Table 8-C.2.5 Summary Life-Cycle Cost Results for Design Line 8 Representative 

Unit .......................................................................................................... 8-C-15

Table 8-C.2.6 Summary Payback Period Results for Design Line 8 Representative 

Unit .......................................................................................................... 8-C-16

Table 8-C.2.7 Summary Life-Cycle Cost Results for Design Line 9 Representative 

Unit .......................................................................................................... 8-C-17

Table 8-C.2.8 Summary Payback Period Results for Design Line 9 Representative 

Unit .......................................................................................................... 8-C-18

Table 8-C.2.9 Summary Life-Cycle Cost Results for Design Line 10 Representative 

Unit .......................................................................................................... 8-C-19

Table 8-C.2.10 Summary Payback Period Results for Design Line 10 Representative 

Unit .......................................................................................................... 8-C-20

Table 8-C.2.11 Summary Life-Cycle Cost Results for Design Line 11 Representative 

Unit .......................................................................................................... 8-C-21

Table 8-C.2.12 Summary Payback Period Results for Design Line 11 Representative 

Unit .......................................................................................................... 8-C-22

Table 8-C.2.13 Summary Life-Cycle Cost Results for Design Line 12 Representative 

Unit .......................................................................................................... 8-C-23

Table 8-C.2.14 Summary Payback Period Results for Design Line 12 Representative 

Unit .......................................................................................................... 8-C-24

Table 8-C.2.15 Summary Life-Cycle Cost Results for Design Line 13A Representative 

Unit .......................................................................................................... 8-C-26

Table 8-C.2.16 Summary Payback Period Results for Design Line 13A Representative 

Unit .......................................................................................................... 8-C-27

Table 8-C.2.17 Summary Life-Cycle Cost Results for Design Line 13B Representative 

Unit .......................................................................................................... 8-C-28

Table 8-C.2.18 Summary Payback Period Results for Design Line 13B Representative 

Unit .......................................................................................................... 8-C-29

LIST OF FIGURES

Figure 8-C.1.1 Design Line 1, Range of LCC Savings by Efficiency Level ..................... 8-C-1

Figure 8-C.1.2 Design Line 1, Range of Payback Periods by Efficiency Level................ 8-C-2

Figure 8-C.1.3 Design Line 2, Range of LCC Savings by Efficiency Level .................... 8-C-3

Figure 8-C.1.4 Design Line 2, Range of Payback Periods by Efficiency Level............... 8-C-4
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-iii

Figure 8-C.1.5 Design Line 3, Range of LCC Savings by Efficiency Level .................... 8-C-5

Figure 8-C.1.6 Design Line 3, Range of Payback Periods by Efficiency Level............... 8-C-6

Figure 8-C.1.7 Design Line 4, Range of LCC Savings by Efficiency Level .................... 8-C-7

Figure 8-C.1.8 Design Line 4, Range of Payback Periods by Efficiency Level............... 8-C-8

Figure 8-C.1.9 Design Line 5, Range of LCC Savings by Efficiency Level ..................... 8-C-9

Figure 8-C.1.10 Design Line 5, Range of Payback Periods by Efficiency Level.............. 8-C-10

Figure 8-C.2.1 Design Line 6, Range of LCC Savings by Efficiency Level ................... 8-C-11

Figure 8-C.2.2 Design Line 6, Range of Payback Periods by Efficiency Level.............. 8-C-12

Figure 8-C.2.3 Design Line 7, Range of LCC Savings by Efficiency Level ................... 8-C-13

Figure 8-C.2.4 Design Line 7, Range of Payback Periods by Efficiency Level.............. 8-C-14

Figure 8-C.2.5 Design Line 8, Range of LCC Savings by Efficiency Level ................... 8-C-15

Figure 8-C.2.6 Design Line 8, Range of Payback Periods by Efficiency Level.............. 8-C-16

Figure 8-C.2.7 Design Line 9, Range of LCC Savings by Efficiency Level ................... 8-C-17

Figure 8-C.2.8 Design Line 9, Range of Payback Periods by Efficiency Level.............. 8-C-18

Figure 8-C.2.9 Design Line 10, Range of LCC Savings by Efficiency Level ................. 8-C-19

Figure 8-C.2.10 Design Line 10, Range of Payback Periods by Efficiency Level............ 8-C-20

Figure 8-C.2.11 Design Line 11, Range of LCC Savings by Efficiency Level ................. 8-C-21

Figure 8-C.2.12 Design Line 11, Range of Payback Periods by Efficiency Level............ 8-C-22

Figure 8-C.2.13 Design Line 12, Range of LCC Savings by Efficiency Level ................. 8-C-23

Figure 8-C.2.14 Design Line 12, Range of Payback Periods by Efficiency Level............ 8-C-24

Figure 8-C.2.15 Design Line 13A, Range of LCC Savings by Efficiency Level .............. 8-C-26

Figure 8-C.2.16 Design Line 13A, Range of Payback Periods by Efficiency Level ......... 8-C-27

Figure 8-C.2.17 Design Line 13B, Range of LCC Savings by Efficiency Level .............. 8-C-28

Figure 8-C.2.18 Design Line 13B, Range of Payback Periods by Efficiency Level ......... 8-C-29
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-1

APPENDIX 8-C. LIFE-CYCLE COST AND PAYBACK PERIOD RESULTS

8-C.1 LIFE-CYCLE COST & PAYBACK RESULTS FOR LIQUID-IMMERSED 

TRANSFORMERS, DESIGN LINES 1-5

8-C.1.1 Design Line 1 Results

Figure 8-C.1.1 Design Line 1, Range of LCC Savings by Efficiency 

Level

Table 8-C.1.1 Summary Life-Cycle Cost Results for Design Line 1 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 99.16 99.22 99.25 99.31 99.42 99.50 99.50

Transformers with Net Increase in LCC (%) 41.18 0.69 0.59 3.93 11.20 38.08 38.08

Transformers with No Impact on LCC (%) 17.94 15.54 15.54 11.66 8.44 0.08 0.08

Transformers with Net LCC Savings (%) 40.88 83.77 83.87 84.41 80.36 61.84 61.84

Mean LCC Savings ($) 116 918 920 902 797 369 369

Median LCC Savings ($) 0 976 977 946 761 251 251

-1500

-1000

-500

0

500

1000

1500

2000

2500

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average LCC Savings ($)

Efficiency Level

Design Line 1 Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-2

Figure 8-C.1.2 Design Line 1, Range of Payback Periods by 

Efficiency Level

Table 8-C.1.2 Summary Payback Period Results for Design Line 1 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 30.7 8.8 8.8 11.6 16.3 26.2 26.2

Median Payback (Years) 19.6 8.4 8.4 10.0 13.5 20.3 20.3

Transformers having Well Defined Payback (%) 70.93 84.45 84.46 87.69 90.36 96.31 96.31

Transformers having Undefined Payback (%) 29.07 15.55 15.54 12.31 9.64 3.69 3.69

Mean Incremental First Cost ($) 2,253 2,313 2,314 2,360 2,449 2,591 2,591

Mean Operating Cost Savings ($) 178 138 137 132 122 116 116

0

20

40

60

80

100

120

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average Payback Period (years)

Efficiency Level

Design Line 1 Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-3

8-C.1.2 Design Line 2 Results

Figure 8-C.1.3 Design Line 2, Range of LCC Savings by Efficiency 

Level

Table 8-C.1.3 Summary Life-Cycle Cost Results for Design Line 2 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 99.00 99.07 99.11 99.18 99.31 99.41 99.46

Transformers with Net Increase in LCC (%) 14.98 5.50 6.44 10.35 29.64 48.46 66.73

Transformers with No Impact on LCC (%) 11.87 11.34 10.41 6.88 2.13 0.18 0.00

Transformers with Net LCC Savings (%) 73.15 83.16 83.15 82.77 68.23 51.36 33.27

Mean LCC Savings ($) 467 574 562 528 215 11 -214

Median LCC Savings ($) 525 621 607 575 230 18 -219

-1000

-500

0

500

1000

1500

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average LCC Savings ($)

Efficiency Level

Design Line 2 Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-4

Figure 8-C.1.4 Design Line 2, Range of Payback Periods by 

Efficiency Level

Table 8-C.1.4 Summary Payback Period Results for Design Line 2 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 17.4 12.6 13.3 16.6 25.9 31.3 35.6

Median Payback (Years) 9.7 9.7 10.1 11.7 19.2 23.5 27.6

Transformers having Well Defined Payback 

(%) 86.19 88.33 88.95 92.68 95.78 98.65 99.63

Transformers having Undefined Payback (%) 13.81 11.67 11.05 7.32 4.22 1.35 0.37

Mean Incremental First Cost ($) 1,768 1,795 1,804 1,845 2,017 2,051 1,946

Mean Operating Cost Savings ($) 87 80 80 78 72 68 65

0

20

40

60

80

100

120

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average Payback Period (years)

Efficiency Level

Design Line 2 Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-5

8-C.1.3 Design Line 3 Results

Figure 8-C.1.5 Design Line 3, Range of LCC Savings by Efficiency 

Level

Table 8-C.1.5 Summary Life-Cycle Cost Results for Design Line 3 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 99.48 99.51 99.54 99.57 99.61 99.69 99.73

Transformers with Net Increase in LCC (%) 4.44 4.87 1.66 1.15 1.64 9.54 27.12

Transformers with No Impact on LCC (%) 48.48 43.30 28.70 27.83 24.68 10.16 0.00

Transformers with Net LCC Savings (%) 47.08 51.83 69.64 71.02 73.68 80.30 72.88

Mean LCC Savings ($) 2192 2739 5371 5733 6748 8485 7110

Median LCC Savings ($) 0 513 5704 6239 7157 7734 5278

-5000

0

5000

10000

15000

20000

25000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average LCC Savings ($)

Efficiency Level

Design Line 3 Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-6

Figure 8-C.1.6 Design Line 3, Range of Payback Periods by 

Efficiency Level

Table 8-C.1.6 Summary Payback Period Results for Design Line 3 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 6.6 7.6 6.2 5.9 6.5 13.0 23.6

Median Payback (Years) 4.2 4.3 4.9 4.9 5.2 8.3 14.4

Transformers having Well Defined Payback 

(%) 48.83 54.49 71.08 72.09 75.28 89.38 98.22

Transformers having Undefined Payback (%) 51.17 45.51 28.92 27.91 24.72 10.62 1.78

Mean Incremental First Cost ($) 4,395 4,434 4,538 4,554 4,612 4,994 5,608

Mean Operating Cost Savings ($) 1,208 1,177 1,041 1,023 966 805 703

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 3 Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-7

8-C.1.4 Design Line 4 Results

Figure 8-C.1.7 Design Line 4, Range of LCC Savings by Efficiency 

Level

Table 8-C.1.7 Summary Life-Cycle Cost Results for Design Line 4 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 99.16 99.22 99.25 99.31 99.42 99.50 99.60

Transformers with Net Increase in LCC (%) 6.02 0.03 0.03 0.03 0.44 18.86 42.53

Transformers with No Impact on LCC (%) 35.55 35.55 35.55 35.55 33.48 8.67 0.00

Transformers with Net LCC Savings (%) 58.43 64.42 64.42 64.42 66.08 72.47 57.47

Mean LCC Savings ($) 1429 2953.9 2953.9 2954.3 3023.3 2874 1187

Median LCC Savings ($) 275 3499.7 3499.7 3501.3 3570.5 2793 772

-2000

0

2000

4000

6000

8000

10000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average LCC Savings ($)

Efficiency Level

Design Line 4 Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-8

Figure 8-C.1.8 Design Line 4, Range of Payback Periods by 

Efficiency Level

Table 8-C.1.8 Summary Payback Period Results for Design Line 4 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 12.9 6.5 6.5 6.5 6.9 19.7 32.9

Median Payback (Years) 11.7 6.2 6.2 6.2 6.3 11.3 20.9

Transformers having Well Defined Payback 

(%) 64.45 64.45 64.45 64.45 66.50 88.58 99.91

Transformers having Undefined Payback (%) 35.55 35.55 35.55 35.55 33.50 11.42 0.09

Mean Incremental First Cost ($) 4,160 4,222 4,222 4,222 4,232 4,570 4,664

Mean Operating Cost Savings ($) 492 419 419 419 415 365 305

0

10

20

30

40

50

60

70

80

90

100

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average Payback Period (years)

Efficiency Level

Design Line 4 Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-9

8-C.1.5 Design Line 5 Results

Figure 8-C.1.9 Design Line 5, Range of LCC Savings by Efficiency 

Level

Table 8-C.1.9 Summary Life-Cycle Cost Results for Design Line 5 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 99.48 99.51 99.54 99.57 99.61 99.69 99.69

Transformers with Net Increase in LCC (%) 27.61 24.66 15.91 14.50 10.42 17.97 17.97

Transformers with No Impact on LCC (%) 9.87 3.70 1.93 1.30 0.00 0.00 0.00

Transformers with Net LCC Savings (%) 62.52 71.64 82.16 84.20 89.58 82.03 82.03

Mean LCC Savings ($) 4937 7786 10734 11282 15347 15754 15754

Median LCC Savings ($) 4662 7359 8991 9588 14095 13993 13993

-20000

-10000

0

10000

20000

30000

40000

50000

60000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average LCC Savings ($)

Efficiency Level

Design Line 5 Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-10

Figure 8-C.1.10 Design Line 5, Range of Payback Periods by 

Efficiency Level

Table 8-C.1.10 Summary Payback Period Results for Design Line 5 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 16.9 15.7 13.1 13.2 12.7 17.7 17.7

Median Payback (Years) 8.8 12.4 14.2 14.5 13.8 16.2 16.2

Transformers having Well Defined Payback 

(%) 75.90 86.47 92.98 94.63 99.22 100.00 100.00

Transformers having Undefined Payback (%) 24.10 13.53 7.02 5.37 0.78 0.00 0.00

Mean Incremental First Cost ($) 11,235 12,214 13,480 13,768 14,531 11,274 11,274

Mean Operating Cost Savings ($) 4,318 4,097 3,880 3,829 3,496 2,761 2,761

0

10

20

30

40

50

60

70

80

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average Payback Period (years)

Efficiency Level

Design Line 5 Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-11

8-C.2 LIFE-CYCLE COST & PAYBACK RESULTS FOR DRY TYPE 

TRANSFORMERS, DESIGN LINES 6-13

8-C.2.1 Design Line 6 Results

Figure 8-C.2.1 Design Line 6, Range of LCC Savings by Efficiency 

Level

Table 8-C.2.1 Summary Life-Cycle Cost Results for Design Line 6 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 98.23 98.47 98.60 98.80 98.93 99.17 99.44

Transformers with Net Increase in LCC (%) 0.00 36.61 25.24 37.54 32.43 53.32 97.68

Transformers with No Impact on LCC (%) 0.00 61.96 74.53 62.46 67.57 46.68 2.32

Transformers with Net LCC Savings (%) 100.00 1.43 0.23 0.00 0.00 0.00 0.00

Mean LCC Savings ($) 0 29 59 76 122 9 -952

Median LCC Savings ($) 0 18 48 60 102 -24 -1005

-2000

-1500

-1000

-500

0

500

1000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average LCC Savings ($)

Efficiency Level

Design Line 6 Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-12

Figure 8-C.2.2 Design Line 6, Range of Payback Periods by 

Efficiency Level

Table 8-C.2.2 Summary Payback Period Results for Design Line 6 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) NA 17.4 14.5 17.6 16.0 19.8 41.7

Median Payback (Years) NA 15.4 13.4 16.3 15.6 19.2 40.0

Transformers having Well Defined Payback (%) 0.00 97.75 99.73 99.97 100.00 100.00 100.00

Transformers having Undefined Payback (%) 100.00 2.25 0.27 0.03 0.00 0.00 0.00

Mean Incremental First Cost ($) 0 111 138 417 508 781 1,871

Mean Operating Cost Savings ($) 0 8 11 27 34 43 50

0

10

20

30

40

50

60

70

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average Payback Period (years)

Efficiency Level

Design Line 6 Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-13

8-C.2.2 Design Line 7 Results

Figure 8-C.2.3 Design Line 7, Range of LCC Savings by Efficiency 

Level

Table 8-C.2.3 Summary Life-Cycle Cost Results for Design Line 7 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 98.23 98.47 98.60 98.80 98.93 99.17 99.44

Transformers with Net Increase in LCC (%) 0.0 0.5 18.5 10.9 10.1 69.8 69.8

Transformers with No Impact on LCC (%) 21.5 72.8 80.0 89.1 90.0 30.2 30.2

Transformers with Net LCC Savings (%) 78.5 26.7 1.5 0.0 0.0 0.0 0.0

Mean LCC Savings ($) 323 826 849 1093 1328 -511 -511

Median LCC Savings ($) 0 685 657 883 1103 -745 -745

-3000

-2000

-1000

0

1000

2000

3000

4000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average LCC Savings ($)

Efficiency Level

Design Line 7 Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-14

Figure 8-C.2.4 Design Line 7, Range of Payback Periods by 

Efficiency Level

Table 8-C.2.4 Summary Payback Period Results for Design Line 7 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 0.1 0.6 1.1 11.1 9.5 9.8 25.7

Median Payback (Years) 0.0 0.0 0.0 5.6 8.1 9.0 23.4

Transformers having Well Defined Payback (%) 22 62 73 97 100 100 100

Transformers having Undefined Payback (%) 78 38 27 3 0 0 0

Mean Incremental First Cost ($) -10 -20 -7 325 711 1,097 3,337

Mean Operating Cost Savings ($) 17 40 44 63 97 131 153

0

5

10

15

20

25

30

35

40

45

50

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average Payback Period (years)

Efficiency Level

Design Line 7 Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-15

8-C.2.3 Design Line 8 Results

Figure 8-C.2.5 Design Line 8, Range of LCC Savings by Efficiency 

Level

Table 8-C.2.5 Summary Life-Cycle Cost Results for Design Line 8 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 98.80 99.02 99.14 99.25 99.32 99.44 99.58

Transformers with Net LCC Cost (%) 3.87 1.30 1.93 5.15 4.05 4.06 56.08

Transformers with Net LCC Benefit (%) 86.71 91.63 94.83 94.85 95.95 95.94 43.92

Transformers with No Change in LCC (%) 9.42 7.07 3.24 0.00 0.00 0.00 0.00

Mean LCC Savings ($) 1401 3554 4253 4999 5826 5844 -186

Median LCC Savings ($) 1172 3487 4162 4537 5510 5531 -632

-10000

-5000

0

5000

10000

15000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average LCC Savings ($)

Efficiency Level

Design Line 8 Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-16

Figure 8-C.2.6 Design Line 8, Range of Payback Periods by 

Efficiency Level

Table 8-C.2.6 Summary Payback Period Results for Design Line 8 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 7.0 4.2 4.4 8.0 7.3 7.3 20.9

Median Payback (Years) 6.5 4.0 4.0 7.6 7.0 7.0 19.7

Transformers having Well Defined Payback (%) 90.58 92.93 96.65 100.00 100.00 100.00 100.00

Transformers having Undefined Payback (%) 9.42 7.07 3.35 0.00 0.00 0.00 0.00

Mean Incremental First Cost ($) 649 912 1,118 3,196 3,281 3,291 10,522

Mean Operating Cost Savings ($) 110 241 289 442 491 492 557

0

5

10

15

20

25

30

35

40

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average Payback Period (years)

Efficiency Level

Design Line 8 Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-17

8-C.2.4 Design Line 9 Results

Figure 8-C.2.7 Design Line 9, Range of LCC Savings by Efficiency 

Level

Table 8-C.2.7 Summary Life-Cycle Cost Results for Design Line 9 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 98.99 99.12 99.28 99.38 99.50 99.59 99.59

Transformers with Net LCC Cost (%) 0.48 2.18 10.97 7.72 18.57 60.50 60.50

Transformers with Net LCC Benefit (%) 88.25 96.29 89.03 92.28 81.43 39.50 39.50

Transformers with No Change in LCC (%) 11.27 1.53 0.00 0.00 0.00 0.00 0.00

Mean LCC Savings ($) 2761 3863 3700 5085 3998 -673 -673

Median LCC Savings ($) 2746 3807 3298 4708 3488 -1285 -1285

-10000

-5000

0

5000

10000

15000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average LCC Savings ($)

Efficiency Level

Design Line 9 Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-18

Figure 8-C.2.8 Design Line 9, Range of Payback Periods by 

Efficiency Level

Table 8-C.2.8 Summary Payback Period Results for Design Line 9 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 1.9 3.8 10.6 9.5 13.0 22.2 22.2

Median Payback (Years) 1.8 3.1 9.3 8.9 12.2 20.6 20.6

Transformers having Well Defined Payback 

(%) 88.67 98.40 99.87 100.00 100.00 100.00 100.00

Transformers having Undefined Payback (%) 11.33 1.60 0.13 0.00 0.00 0.00 0.00

Mean Incremental First Cost ($) 290 753 3,386 4,391 6,859 12,111 12,111

Mean Operating Cost Savings ($) 164 249 382 511 585 617 617

0

5

10

15

20

25

30

35

40

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average Payback Period (years)

Efficiency Level

Design Line 9 Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-19

8-C.2.5 Design Line 10 Results

Figure 8-C.2.9 Design Line 10, Range of LCC Savings by Efficiency 

Level

Table 8-C.2.9 Summary Life-Cycle Cost Results for Design Line 10 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 99.31 99.40 99.50 99.53 99.60 99.67 99.67

Transformers with Net LCC Cost (%) 11.05 24.79 31.68 27.38 35.45 69.49 69.49

Transformers with Net LCC Benefit (%) 82.63 75.18 68.32 72.62 64.55 30.51 30.51

Transformers with No Change in LCC (%) 6.32 0.03 0.00 0.00 0.00 0.00 0.00

Mean LCC Savings ($) 2778 4329 4849 6311 5574 -5311 -5311

Median LCC Savings ($) 2142 3372 3787 4986 3842 -7440 -7440

-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 10 Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-20

Figure 8-C.2.10 Design Line 10, Range of Payback Periods by 

Efficiency Level

Table 8-C.2.10 Summary Payback Period Results for Design Line 10 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 8.2 14.9 16.6 14.8 16.5 25.2 25.2

Median Payback (Years) 5.2 11.1 14.5 14.1 15.5 23.1 23.1

Transformers having Well Defined Payback 

(%) 92.30 98.93 99.91 100.00 100.00 100.00 100.00

Transformers having Undefined Payback (%) 7.70 1.07 0.09 0.00 0.00 0.00 0.00

Mean Incremental First Cost ($) 1,119 5,611 14,638 16,183 20,807 35,727 35,727

Mean Operating Cost Savings ($) 210 536 1,051 1,213 1,423 1,641 1,641

0

5

10

15

20

25

30

35

40

45

50

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average Payback Period (years)

Efficiency Level

Design Line 10 Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-21

8-C.2.6 Design Line 11 Results

Figure 8-C.2.11 Design Line 11, Range of LCC Savings by Efficiency 

Level

Table 8-C.2.11 Summary Life-Cycle Cost Results for Design Line 11 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 98.81 98.94 99.06 99.13 99.32 99.50 99.50

Transformers with Net LCC Cost (%) 27.05 46.40 16.55 14.00 22.24 57.84 57.84

Transformers with Net LCC Benefit (%) 70.46 53.60 83.45 86.00 77.76 42.16 42.16

Transformers with No Change in LCC (%) 2.49 0.00 0.00 0.00 0.00 0.00 0.00

Mean LCC Savings ($) 810 497 2709 3121 3120 -309 -309

Median LCC Savings ($) 606 177 2477 2857 2673 -1003 -1003

-10000

-5000

0

5000

10000

15000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average LCC Savings ($)

Efficiency Level

Design Line 11 Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-22

Figure 8-C.2.12 Design Line 11, Range of Payback Periods by 

Efficiency Level

Table 8-C.2.12 Summary Payback Period Results for Design Line 11 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 15.8 21.1 12.8 12.2 14.0 20.9 20.9

Median Payback (Years) 11.4 17.0 12.0 11.9 13.5 20.0 20.0

Transformers having Well Defined Payback 

(%) 95.25 99.07 100.00 100.00 100.00 100.00 100.00

Transformers having Undefined Payback (%) 4.75 0.93 0.00 0.00 0.00 0.00 0.00

Mean Incremental First Cost ($) 1,250 3,275 4,494 4,926 7,213 12,644 12,644

Mean Operating Cost Savings ($) 111 203 389 434 557 665 665

0

5

10

15

20

25

30

35

40

45

50

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average Payback Period (years)

Efficiency Level

Design Line 11 Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-23

8-C.2.7 Design Line 12 Results

Figure 8-C.2.13 Design Line 12, Range of LCC Savings by Efficiency 

Level

Table 8-C.2.13 Summary Life-Cycle Cost Results for Design Line 12 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 99.21 99.30 99.39 99.46 99.53 99.59 99.65

Transformers with Net LCC Cost (%) 15.02 13.00 24.56 24.33 25.64 33.51 64.68

Transformers with Net LCC Benefit (%) 79.00 85.75 75.44 75.67 74.36 66.49 35.32

Transformers with No Change in LCC 

(%) 5.98 1.25 0.00 0.00 0.00 0.00 0.00

Mean LCC Savings ($) 5322 8865 8644 8076 9726 8504 -4210

Median LCC Savings ($) 4216 7422 6868 6644 7815 6146 -6987

-40000

-30000

-20000

-10000

0

10000

20000

30000

40000

50000

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

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-24

Figure 8-C.2.14 Design Line 12, Range of Payback Periods by 

Efficiency Level

Table 8-C.2.14 Summary Payback Period Results for Design Line 12 Representative Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 9.9 9.9 14.7 14.3 14.4 16.1 23.8

Median Payback (Years) 6.3 6.7 10.6 13.5 13.7 15.0 21.7

Transformers having Well Defined Payback 

(%) 91.10 97.59 98.83 100.00 100.00 100.00 100.00

Transformers having Undefined Payback (%) 8.90 2.41 1.17 0.00 0.00 0.00 0.00

Mean Incremental First Cost ($) 2,603 4,629 10,060 18,184 22,242 27,410 43,835

Mean Operating Cost Savings ($) 427 728 1,009 1,416 1,725 1,938 2,138

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

average
dt_nopr_tsd_appendix08c_092211 DRAFT 8-C-25
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-26

8-C.2.8 Design Line 13A Results

Figure 8-C.2.15 Design Line 13A, Range of LCC Savings by 

Efficiency Level

Table 8-C.2.15 Summary Life-Cycle Cost Results for Design Line 13A Representative 

Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 98.76 98.85 98.92 99.10 99.29 99.48 99.48

Transformers with Net LCC Cost (%) 27.55 28.94 41.10 30.88 33.17 87.49 87.49

Transformers with Net LCC Benefit (%) 70.74 71.01 58.90 69.12 66.83 12.51 12.51

Transformers with No Change in LCC 

(%) 1.71 0.05 0.00 0.00 0.00 0.00 0.00

Mean LCC Savings ($) 855 1107 749 1701 2060 -6331 -6331

Median LCC Savings ($) 654 860 470 1439 1600 -7068 -7068

-20000

-15000

-10000

-5000

0

5000

10000

15000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average LCC SAvings ($)

Efficiency Level

Design Line 13A Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-27

Figure 8-C.2.16 Design Line 13A, Range of Payback Periods by 

Efficiency Level

Table 8-C.2.16 Summary Payback Period Results for Design Line 13A Representative 

Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 14.9 15.8 19.3 15.7 16.1 30.9 30.9

Median Payback (Years) 10.5 12.6 15.9 15.4 15.7 29.3 29.3

Transformers having Well Defined Payback 

(%) 94.62 99.24 99.81 100.00 100.00 100.00 100.00

Transformers having Undefined Payback (%) 5.38 0.76 0.19 0.00 0.00 0.00 0.00

Mean Incremental First Cost ($) 1,139 2,023 3,373 6,307 8,549 19,052 19,052

Mean Operating Cost Savings ($) 107 169 222 432 572 686 686

0

10

20

30

40

50

60

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average Payback Period (years)

Efficiency Level

Design Line 13A Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-28

8-C.2.9 Design Line 13B Results

Figure 8-C.2.17 Design Line 13B, Range of LCC Savings by 

Efficiency Level

Table 8-C.2.17 Summary Life-Cycle Cost Results for Design Line 13B Representative 

Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Efficiency (%) 99.23 99.31 99.38 99.43 99.49 99.58 99.58

Transformers with Net LCC Cost (%) 20.61 12.20 19.90 39.80 26.67 39.77 39.77

Transformers with Net LCC Benefit (%) 73.56 87.69 80.10 60.20 73.33 60.23 60.23

Transformers with No Change in LCC 

(%) 5.83 0.11 0.00 0.00 0.00 0.00 0.00

Mean LCC Savings ($) 4351 8668 8878 4642 9271 6033 6033

Median LCC Savings ($) 3397 7455 7495 2917 7794 4359 4359

-30000

-20000

-10000

0

10000

20000

30000

40000

50000

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average LCC Savings ($)

Efficiency Level

Design Line 13B Average LCC Savings

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average
dt_nopr_tsd_appendix08c_092211 DRAFT

8-C-29

Figure 8-C.2.18 Design Line 13B, Range of Payback Periods by 

Efficiency Level

Table 8-C.2.18 Summary Payback Period Results for Design Line 13B Representative 

Unit

Draft Efficiency Level

1 2 3 4 5 6 7

Mean Payback (Years) 11.6 10.3 13.1 17.9 14.9 17.3 17.3

Median Payback (Years) 7.0 9.0 11.6 16.1 14.5 16.8 16.8

Transformers having Well Defined Payback 

(%) 88.90 99.68 99.90 99.93 100.00 100.00 100.00

Transformers having Undefined Payback (%) 11.10 0.32 0.10 0.07 0.00 0.00 0.00

Mean Incremental First Cost ($) 2,776 7,515 13,333 21,788 26,857 38,839 38,839

Mean Operating Cost Savings ($) 385 873 1,198 1,427 1,950 2,421 2,421

0

5

10

15

20

25

30

35

40

CSL 1 CSL 2 CSL 3 CSL 4 CSL 5 CSL 6 CSL 7

Average Payback Period (years)

Efficiency Level

Design Line 13B Average Payback Period

Average; Median; Box 25%-75%; Whisker 5%-95%

median

average