# APPENDIX E. DETAILED LIFE-CYCLE COST OUTPUT

TABLE OF CONTENTS

E.1 INTRODUCTION

.............................................................................................................. E- 1 E.2 LCC RESULTS

.................................................................................................................. E- 1 E.2. 1 Standard Size PTAC with Cooling Capacity of 9000 Btu/h (PTAC 9000)

............ E- 1 E.2. 2 Standard Size PTACs with Coo ling Capacity of 12,000 Btu/h (PTA C 12000)

..................................................................................................................... E- 6 E.2. 3 Standard Size PTHP with Cooling Capacity of 9000 Btu/h (PTHP 9000)

........... E-1 1 E.2. 4 Standard Size PTHP with Cooling Capacity of 12,000 Btu/h (PTHP 12000)

...... E-1 6 E.2. 5 Non-Standard Size PTAC with Cooling Capacity of 11,000 Btu/h (PTA C 11000)

................................................................................................................... E-2 1 E.2. 6 Non-Standard Size PTHP with Cool ing Capacity of 11,000 Btu/h (PTH P 11000)

................................................................................................................... E-2 6 E.3 SENSITIVITY OF LCC RESULTS TO ELECTRICITY PRICE FORECAST

.............. E-3 1

LIST OF TABLES

Table E.2.1 Distribution of Life-Cycle Cost Savings from a Baseline Level (Level 0) by Efficiency Level for PTAC 9000.

................................................................ E- 2 Table E.2.2 Summary of PBP Results for All Efficiency Levels: PTAC 9000

................... E- 4 Table E.2.3 Distribution of Life-Cycle Cost Savings from a Baseline Level (Level 0 ) by Efficiency Level for PTAC 12000

............................................................... E- 7 Table E.2.4 Summary of PBP Results for All Efficiency Levels: PTAC 12000

................. E- 9 Table E.2.5 Distribution of Life-Cycle Cost Savings from a Baseline Level (Level 0 ) by Efficiency Level for PTHP 9000

............................................................... E-1 2 Table E.2.6 Summary of PBP Results for All Efficiency Levels: PTHP 9000

.................. E-1 4 Table E.2.7 Distribution of Life-Cycle Cost Savings from a Baseline Level (Level 0 ) by Efficiency Level for PTHP 12000

............................................................. E-1 7 Table E.2.8 Summary of PBP Results for All Efficiency Levels: PTHP 12000

................ E-1 9 Table E.2.9 Distribution of Life-Cycle Cost Savings from a Baseline Level (Level 0 ) by Efficiency Level for PTAC 11000

............................................................. E-2 2 Table E.2.10 Summary of PBP Results for All Efficiency Levels: PTAC 11000

............... E-2 4 Table E.2.11 Distribution of Life-Cycle Cost Savings from a Baseline Level (Level 0 ) by Efficiency Level for PTHP 11000

............................................................. E-2 7 Table E.2.12 Summary of PBP Results for All Efficiency Levels: PTHP 11000

................ E-2 9 Table E.3.1 Summary of LCC Results: Low Electri city Price Forecast, PTAC 9000

....... E-3 1 Table E.3.2 Summary of LCC Results: Low Electri city Price Forecast, PTAC 12000

..... E-3 1 Table E.3.3 Summary of LCC Results: Low Electri city Price Forecast, PTHP 9000

....... E-3 2 Table E.3.4 Summary of LCC Results: Low Electri city Price Forecast, PTHP 12000

..... E-3 2 Table E.3.5 Summary of LCC Results: Low Electri city Price Forecast, PTAC 11000

..... E-3 2 Table E.3.6 Summary of LCC Results: Low Electri city Price Forecast, PTHP 11000

..... E-3 3 Table E.3.7 Summary of LCC Results: High Electr icity Price Forecast, PTAC 9000

...... E-3 3

E-i

# Table E.3.8 Summary of LCC Results: High Electr icity Price Forecast, PTAC 12000

.... E-3 3 Table E.3.9 Summary of LCC Results: High Electr icity Price Forecast, PTHP 9000

....... E-3 4 Table E.3.10 Summary of LCC Results: High Electr icity Price Forecast, PTHP 12000

..... E-3 4 Table E.3.11 Summary of LCC Results: High Electr icity Price Forecast, PTAC 11000

.... E-3 4 Table E.3.12 Summary of LCC Results: High Electr icity Price Forecast, PTHP 11000

..... E-3 5 Table E.3.13 Summary of PBP Results: Low Electri city Price Forecast, PTAC 9000

........ E-3 5 Table E.3.14 Summary of PBP Results: Low Electri city Price Forecast, PTAC 12000

...... E-3 5 Table E.3.15 Summary of PBP Results: Low Electri city Price Forecast, PTHP 9000

........ E-3 6 Table E.3.16 Summary of PBP Results: Low Electri city Price Forecast, PTHP 12000

...... E-3 6 Table E.3.17 Summary of PBP Results: Low Electri city Price Forecast, PTAC 11000

...... E-3 6 Table E.3.18 Summary of PBP Results: Low Electri city Price Forecast, PTHP 11000

...... E-3 7 Table E.3.19 Summary of PBP Results: High Electr icity Price Forecast, PTAC 9000

....... E-3 7 Table E.3.20 Summary of PBP Results: High Electr icity Price Forecast, PTAC 12000

..... E-3 7 Table E.3.21 Summary of PBP Results: High Electr icity Price Forecast, PTHP 9000

....... E-3 8 Table E.3.22 Summary of PBP Results: High Electr icity Price Forecast, PTHP 12000

..... E-3 8 Table E.3.23 Summary of PBP Results: High Electr icity Price Forecast, PTAC 11000

..... E-3 8 Table E.3.24 Summary of PBP Results: High Electr icity Price Forecast, PTAC 11000

..... E-3 9

LIST OF FIGURES
Figure E.2.1 Effect of the Change in Efficiency Level on Average Life-Cycle Cost for PTAC 9000 (Level 0 is the Baseline Level)

..................................................... E- 2 Figure E.2.2 Cumulative Chart of LCC Savings fo r All Efficiency Levels: PTA C 9000

................................................................................................................... E- 3 Figure E.2.3 Effect of the Change in Efficiency Level on Average Payback Period fo r PTAC 9000 (Level 0 is the Baseline Level).

.................................................... E- 4 Figure E.2.4 Cumulative Chart of PBP for All Efficiency Levels: PTAC 9000

.................. E- 5 Figure E.2.5 Effect of the Change in Efficiency Level on Average Life-Cycle Cost fo r PTAC 12000 (Level 0 is the Baseline Level).

.................................................. E- 7 Figure E.2.6 Cumulative Chart of LCC Savings fo r All Efficiency Levels: PTA C 12000

................................................................................................................. E- 8 Figure E.2.7 Effect of the Change in Efficiency Level on Average Payback Period fo r PTAC 12000 (Level 0 is the Baseline Level).

.................................................. E- 9 Figure E.2.8 Cumulative Chart of PBP for All Efficiency Levels: PTAC 12000

.............. E-1 0 Figure E.2.9 Effect of the Change in Efficiency Level on Average Life-Cycle Cost fo r PTHP 9000 (Level 0 is the Baseline Level).

................................................... E-1 2 Figure E.2.10 Cumulative Chart of LCC Savings fo r All Efficiency Levels: PTH P 9000

................................................................................................................. E-1 3 Figure E.2.11 Effect of the Change in Efficiency Level on Average Payback Period fo r PTHP 9000 (Level 0 is the Baseline Level).

................................................... E-1 4 Figure E.2.12 Cumulative Chart of PBP for All Efficiency Levels: PTHP 9000

................. E-1 5 Figure E.2.13 Effect of the Change in Efficiency Level on Average Life-Cycle Cost fo r PTHP 12000 (Level 0 is the Baseline Level).

................................................. E-1 7 Figure E.2.14 Cumulative Chart of LCC Savings fo r All Efficiency Levels: PTH P 12000

............................................................................................................... E-1 8

E-ii

# Figure E.2.15 Effect of the Change in Efficiency Level on Average Payback Period for PTHP 12000 (Level 0 is the Baseline Level).

................................................. E-1 9 Figure E.2.16 Cumulative Chart of PBP for All Efficiency Levels: PTHP 12000

............... E-2 0 Figure E.2.17 Effect of the Change in Efficiency Level on Average Life-Cycle Cost fo r PTAC 11000 (Level 0 is the Baseline Level).

................................................ E-2 2 Figure E.2.18 Cumulative Chart of LCC Savings fo r All Efficiency Levels: PTA C 11000

............................................................................................................... E-2 3 Figure E.2.19 Effect of the Change in Efficiency Level on Average Payback Period fo r PTAC 11000 (Level 0 is the Baseline Level).

................................................ E-2 4 Figure E.2.20 Cumulative Chart of PBP for All Efficiency Levels: PTAC 11000

.............. E-2 5 Figure E.2.21 Effect of the Change in Efficiency Level on Average Life-Cycle Cost fo r PTHP 11000 (Level 0 is the Baseline Level).

................................................. E-2 7 Figure E.2.22 Cumulative Chart of LCC Savings fo r All Efficiency Levels: PTH P 11000

............................................................................................................... E-2 8 Figure E.2.23 Effect of the Change in Efficiency Level on Average Payback Period fo r PTHP 11000 (Level 0 is the Baseline Level).

................................................. E-2 9 Figure E.2.24 Cumulative Chart of PBP for All Efficiency Levels: PTHP 11000

............... E-3 0

E-iii

# APPENDIX E. DETAILED LIFE-CYCLE COST OUTPU T

E.1 INTRODUCTIO N
Appendix E contains detailed output from the Life-Cycle Cost (LCC) analysis for packaged terminal air conditioners (PTACs) a nd packed terminal heat pumps (PTHPs) as developed using the LCC spreadsheet. LCC a nd payback periods are presented in terms of national average LCC, national average LCC savings from the baseline efficiency level (Level 0, corresponding to ASHRAE/IESNA Standard 90. 1-1999) and national average payback period results for each of the six equipment classes analy zed at each efficiency level. See Chapter 8 of the TSD for an explanation of the ta bles and figures in this appendix.

E.2 LCC RESULTS

E.2.1 Standard Size PTAC with Cooling Capacity of 9000 Btu/h (PTAC 9000)
Figure E.2.1 shows the variation of the life-cycle cost with th e efficiency levels for each of the efficiency levels considered for the an alysis. The installed cost is the sum of the equipment price and the installa tion cost of the equipment a nd the former is the largest contributor to the increasing tota l installed cost as the efficiency level rises from Level 0 to Level 4 (with reduced energy consumption). The L CC results show that at the efficiency levels (Level 1 - Level 4), the lifetime operating cost has less of an impact on the LCC than the total installed cost. In other words, the decrease in lifetime operating co sts (due to reduced electricity costs) is more than offset the increase in total in stalled cost. As a result, the LCC at (nearly) all efficiency levels is higher than that for the baseline efficiency level (Level 0) for this equipment class. Table E.2.1 shows the national di stribution of LCC savings above the baseline (Level 0) calculated for this equipment for the higher effi ciency levels [1-4]. Negative values mean negative savings; i.e. increases in life-cycle cost. Figure E.2.2 show this distribution of LCC savings graphically for each efficiency level analyzed.
Figure E.2.3 shows the effect on payback peri od as the efficiency level changes from Level 0 (baseline) to Level 4, on a national aver aged basis weighted ove r all building types, energy prices, sales taxes and installation costs. Table E.2.2 shows the national distribution of payback periods calculated for all efficiency levels as well as the average payback and the percent of units with a payb ack of less than 3 years. Figure E.2.4 show this distribution of payback results graphically for each efficiency level analyzed.

E- 1

### Efficiency Leve l-LCC Tradeoff

Equipment= PTAC Standard Size - 9,000 Btu/h, Fuel Price=AEO 2008 - Reference Case, Start Year= 2012

$2,938 $2,938 $2,946

$2,942

$2,940

$2,937 $2,938 $2,939 $2,940 $2,941 $2,942 $2,943 $2,944 $2,945 $2,946 $2,947Life Cycle Cost

LCC-Efficiency Level Tradeoff

0 1 2 

### Efficiency Level 3 4



# Figure E.2.1 Effect of the Change in Efficien cy Level on Average Life-Cycle Cost for PTAC 9000 (Level 0 is the Baseline Level)

Table E.2.1 Distribution of Life-Cycle Cost S avings from a Baseline Level (Level 0) by Efficiency Level for PTAC 9000.

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$14 -$10 -$8 -$7 -$5 -$3 -$2 $1 $3 $8 $111 -$1 33%
Level 2 -$24 -$17 -$15 -$12 -$10 -$7 -$4 $0 $5 $13 $182 -$3 31%
Level 3 -$35 -$25 -$22 -$18 -$15 -$11 -$7 -$2 $5 $15 $249 -$6 27%
Level 4 -$46 -$34 -$30 -$25 -$21 -$16 -$11 -$4 $4 $17 $312 -$10 25%



## E- 2PTAC 9000 Level 1 PTAC 9000 Level 2

PTAC 9000 Level 3 PTAC 9000 Level 4 

# Figure E.2.2 Cumulative Chart of LCC Savi ngs for All Efficiency Levels : PTAC 900 0

E- 3

### Payback Period -Effic iency Level Tradeoff
Equipment= PTAC Standard Size - 9,000 Btu/h, Fuel Price=AEO 2008 - Reference Case, Start Year= 2012

8.0 8.5 8.9

7.6

7.4 7.6 7.8 8.0 8.2 8.4 8.6 8.8 9.0Payback Period (Years) Payback Period-Efficiency Level Tradeoff



### 0 1 2 3 4 

### Efficiency Level



# Figure E.2.3 Effect of the Change in Effici ency Level on Average Payback Period for PTAC 9000 (Level 0 is the Baseline Level)

. Table E.2.2 Summary of PBP Results for All Efficiency Levels: PTAC 900 0

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 1.1 3.9 5.6 6.9 7.5 8.2 9.5 12.2 14.9 22.7 100.0 13.0 1%
Level 2 1.2 4.1 5.9 7.2 7.8 8.6 10.1 12.9 15.5 24.5 100.0 13.7 1%
Level 3 1.2 4.3 6.2 7.7 8.3 9.1 10.6 13.7 16.6 26.3 100.0 14.5 1%
Level 4 1.3 4.5 6.5 8.1 8.7 9.6 11.2 14.5 17.6 28.2 100.0 15.2 1%



## E- 4PTAC 9000, Level 1 PTAC 9000, Level 2

PTAC 9000, Level 3 PTAC 9000, Level 4 

# Figure E.2.4 Cumulative Chart of PBP fo r All Efficiency Levels : PTAC 900 0

E- 5

# E.2.2 Standard Size PTACs with Coolin g Capacity of 12,000 Btu/h (PTAC 12000)
Figure E.2.5 shows the variation of the life-cycl e cost with the installed cost for each of the efficiency levels considered for the analysis. The installed cost is the sum of the equipment price and the installation cost of the equipment and the former is the largest contributor to the increasing total installed cost as the efficiency level rises from Level 0 to Level 4 (with reduced energy consumption). The LCC results show that at the higher efficiency levels (Level 1 - Level 4), the lifetime operating cost has less of an impact on the LCC than the total installed cost. In other words, the decrease in lifetime operating costs (due to reduced electricity costs) is more than offset by the increase in total installe d cost. As a result, the LCC at all efficiency levels is higher than that for the baseline effi ciency level (Level 0) for this equipment. Table E.2.3 shows the national distribution of LCC savings above the baseli ne (Level 0) calculated for this equipment class for the higher efficiency levels [1-4]. Figure E.2.6 show this distribution of LCC savings graphically for each efficiency level analyzed.
Figure E.2.7 shows the effect on payback peri od as the efficiency level changes from Level 0 (baseline) to Level 4, on a national aver aged basis weighted ove r all building types, energy prices, sales taxes and installation costs. Table E.2.4 shows the national distribution of payback periods calculated for all efficiency levels as well as the average payback and the percent of units with a payb ack of less than 3 years. Figure E.2.8 show this distribution of payback results graphically for each efficiency level analyzed.

E- 6

### Efficiency Level-LCC Tradeoff

Equipment= PTAC Standard Size - 12,000 Btu/h, Fuel Price=AEO 2008 - Reference Case, Start Year= 2012

0 1 2 3 4 

### Efficiency Level


# Figure E.2.5 Effect of the Change in Efficien cy Level on Average Life-Cycle Cost for PTAC 12000 (Level 0 is the Baseline Level).

Table E.2.3 Distribution of Life-Cycle Cost S avings from a Baseline Level (Level 0) by Efficiency Level for PTAC 12000 $3,378 $3,379 $3,391

$3,386

$3,382

$3,376 $3,378 $3,380 $3,382 $3,384 $3,386 $3,388 $3,390 $3,392Life Cycle Cost

LCC-Efficiency Level Tradeoff

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$18 -$13 -$11 -$9 -$7 -$5 -$3 $0 $3 $10 $135 -$2 31%
Level 2 -$30 -$22 -$19 -$16 -$13 -$9 -$6 -$1 $4 $14 $220 -$5 29%
Level 3 -$44 -$33 -$29 -$24 -$20 -$15 -$10 -$4 $3 $17 $299 -$10 25%
Level 4 -$59 -$44 -$40 -$34 -$29 -$23 -$16 -$9 $1 $18 $373 -$15 21%



## E- 7PTAC 12000 Level 1 PTAC 12000 Level 2

PTAC 12000 Level 3 PTAC 12000 Level 4 

# Figure E.2.6 Cumulative Chart of LCC Savi ngs for All Efficiency Levels : PTAC 1200 0

E- 8

### Payback Period -Effic iency Level Tradeoff
Equipment= PTAC Standard Size - 12,000 Btu/h, Fuel Price=AEO 2008 - Reference Case, Start Year= 2012

8.3 8.9 9.5

7.9

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0Payback Period (Years) Payback Period-Efficiency Level Tradeoff



### 0 1 2 3 4 

### Efficiency Level



# Figure E.2.7 Effect of the Change in Effici ency Level on Average Payback Period for PTAC 12000 (Level 0 is the Baseline Level)

. Table E.2.4 Summary of PBP Results for All Efficiency Levels: PTAC 1200 0

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 1.2 4.0 5.8 7.2 7.8 8.6 9.7 12.3 15.1 22.9 100.0 13.1 1%
Level 2 1.2 4.2 6.2 7.6 8.3 9.1 10.4 13.3 16.1 24.6 100.0 14.0 1%
Level 3 1.3 4.5 6.6 8.1 8.8 9.6 11.0 14.2 17.3 26.7 100.0 14.9 1%
Level 4 1.4 4.7 7.0 8.7 9.4 10.3 11.8 15.1 18.6 29.1 100.0 15.9 1%



## E- 9PTAC 12000, Level 1 PTAC 12000, Level 2

PTAC 12000, Level 3 PTAC 12000, Level 4 

# Figure E.2.8 Cumulative Chart of PBP fo r All Efficiency Levels : PTAC 1200 0

E-1 0

# E.2.3 Standard Size PTHP with Coolin g Capacity of 9000 Btu/h (PTHP 9000)
Figure E.2.9 shows the variation of the life-cycl e cost with the installed cost for each of the efficiency levels considered for the analysis . The installed cost is the sum of the equipment price and the installation cost of the equipment and the former is the largest contributor to the increasing total installed cost as the efficiency level rises from Level 0 to Level 4 (with reduced energy consumption). The LCC results show that at the higher efficiency levels (Level 1 - Level 4), the lifetime operating cost eventually ha s more of an impact on the LCC than the total installed cost. In other words, the decrease in li fetime operating costs (due to reduced electricity costs) offsets the increase in total installed cost . As a result, the LCC at the highest efficiency levels is lower than that for the baseline efficien cy level (Level 0) for this equipment class. Table E.2.5 shows the national distribution of LCC savings above the baseline (Level 0) calculated for this equipment class for the higher efficiency levels [1-4]. Figure E.2.10 show this distribution of LCC savings graphically for each efficiency level analyzed.
Figure E.2.11 shows the effect on payback peri od as the efficiency level changes from Level 0 (baseline) to Level 4, on a national aver aged basis weighted ove r all building types, energy prices, sales taxes and installation costs. Table E.2.6 shows the national distribution of payback periods calculated for all efficiency levels as well as the average payback and the percent of units with a payb ack of less than 3 years. Figure E.2.12 show this distribution of payback results graphically for each efficiency level analyzed.

E-1 1

### Efficiency Level-LCC Tradeoff

Equipment= PTHP Standard Size - 9,000 Btu/h, Fuel Price=AEO 2008 - Reference Case, Start Year= 2012

$3,805

$3,792

$3,775

$3,772 $3,781

$3,770 $3,775 $3,780 $3,785 $3,790 $3,795 $3,800 $3,805 $3,810Life Cycle Cost

LCC-Efficiency Level Tradeoff

0 1 2 3 4 

### Efficiency Level


# Figure E.2.9 Effect of the Change in Efficien cy Level on Average Life-Cycle Cost for PTHP 9000 (Level 0 is the Baseline Level).

Table E.2.5 Distribution of Life-Cycle Cost S avings from a Baseline Level (Level 0) by Efficiency Level for PTHP 9000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$17 -$7 -$4 $1 $4 $8 $12 $16 $23 $33 $192 $11 71%
Level 2 -$24 -$8 -$2 $5 $9 $16 $22 $29 $38 $55 $263 $20 77%
Level 3 -$32 -$9 -$1 $7 $13 $22 $30 $40 $51 $73 $330 $28 79%
Level 4 -$42 -$17 -$8 $1 $8 $18 $27 $37 $51 $76 $393 $24 71%



## E-1 2PTHP 9000 Level 1 PTHP 9000 Level 2

PTHP 9000 Level 3 PTHP 9000 Level 4 

# Figure E.2.10 Cumulative Chart of LCC Saving s for All Efficiency Levels : PTHP 900 0

E-1 3

### Payback Period -Efficiency Level Tradeoff
Equipment= PTHP Standard Size - 9,000 Btu/h, Fuel Price=AEO 2008 - Reference Case, Start Year= 2012

4.0

4.0 4.5

4.4

3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6Payback Period (Years) Payback Period-Efficiency Level Tradeoff



### 0 1 2 3 4 

### Efficiency Level



# Figure E.2.11 Effect of the Change in Effici ency Level on Average Payback Period for PTHP 9000 (Level 0 is the Baseline Level)

. Table E.2.6 Summary of PBP Results fo r All Efficiency Levels: PTHP 900 0

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 1.1 3.0 3.2 3.7 4.6 5.0 5.2 5.6 6.1 7.6 12.8 5.1 11%
Level 2 1.1 2.7 3.0 3.4 4.2 4.5 4.7 5.0 5.5 6.4 10.2 4.5 19%
Level 3 1.2 2.7 3.0 3.4 4.1 4.4 4.7 4.9 5.4 6.2 9.5 4.4 19%
Level 4 1.2 3.1 3.3 3.8 4.7 5.1 5.3 5.6 6.3 7.3 11.8 5.1 9%



## E-1 4PTHP 9000, Level 1 PTHP 9000, Level 2

PTHP 9000, Level 3 PTHP 9000, Level 4 

# Figure E.2.12 Cumulative Chart of PBP fo r All Efficiency Levels : PTHP 900 0

E-1 5

# E.2.4 Standard Size PTHP with Coolin g Capacity of 12,000 Btu/h (PTHP 12000)
Figure E.2.13 shows the variation of the life-cycle cost for ea ch of the efficiency levels considered for the analysis. The installed cost is the sum of the equipment price and the installation cost of the equipment and the former is the largest contributor to the increasing total installed cost as the efficiency level rises from Level 0 to Level 4 (with reduced energy consumption). The LCC results show that at the hi gher efficiency levels (L evel 1 - Level 4), the lifetime operating cost has more of an impact on the LCC than the total installed cost. In other words, the decrease in lifetime operating costs (due to reduced electricity costs) more than offsets the increase in total installed cost. As a result, the LCC at all efficiency levels is lower than that for the baseline efficiency leve l (Level 0) for this equipment class. Table E.2.7 shows the national distribution of LCC savings above the baseline (Level 0) calculated for this equipment for the higher efficiency levels [1-4]. Figure E.2.14 show this distribution of LCC savings graphically for each efficiency level analyzed.
Figure E.2.15 shows the effect on payback peri od as the efficiency level changes from Level 0 (baseline) to Level 4, on a national aver aged basis weighted ove r all building types, energy prices, sales taxes and installation costs. Table E.2.8 shows the national distribution of payback periods calculated for all efficiency levels as well as the average payback and the percent of units with a payb ack of less than 3 years. Figure E.2.16 show this distribution of payback results graphically for each efficiency level analyzed.

E-1 6

### Efficiency Level-LCC Tradeoff

Equipment= PTHP Standard Size - 12,000 Btu/h, Fuel Price=AEO 2008 - Reference Case, Start Year= 2012

$4,340

$4,324

$4,321

$4,315

$4,312 $4,310 $4,315 $4,320 $4,325 $4,330 $4,335 $4,340 $4,345Life Cycle Cost

LCC-Efficiency Level Tradeoff

0 1 2 3 4 

### Efficiency Level


# Figure E.2.1 3 Effect of the Change in Efficien cy Level on Average Life-Cycle Cost for PTHP 12000 (Level 0 is the Baseline Level).

Table E.2. 7 Distribution of Life-Cycle Cost S avings from a Baseline Level (Level 0) by Efficiency Level for PTHP 12000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$22 -$9 -$5 $0 $4 $10 $15 $20 $28 $40 $233 $13 71%
Level 2 -$31 -$10 -$3 $5 $11 $19 $26 $34 $46 $66 $318 $24 77%
Level 3 -$43 -$20 -$12 -$3 $4 $13 $23 $32 $46 $69 $397 $20 67%
Level 4 -$56 -$31 -$21 -$12 -$3 $6 $17 $28 $44 $70 $471 $14 57%



## E-1 7PTHP 12000 Level 1 PTHP 12000 Level 2

PTHP 12000 Level 3 PTHP 12000 Level 4 

# Figure E.2.14 Cumulative Chart of LCC Saving s for All Efficiency Levels : PTHP 1200 0

E-1 8

### Payback Period -Effic iency Level Tradeoff
Equipment= PTHP Standard Size - 12,000 Btu/h, Fuel Price=AEO 2008 - Reference Case, Start Year= 2012

4.1 4.9 5.5

4.5

0.0 1.0 2.0 3.0 4.0 5.0 6.0Payback Period (Years) Payback Period-Efficiency Level Tradeoff



### 0 1 2 3 4 

### Efficiency Level


# Figure E.2.1 5 Effect of the Change in Effici ency Level on Average Payback Period for PTHP 12000 (Level 0 is the Baseline Level).
Table E.2.8 Summary of PBP Results fo r All Efficiency Levels: PTHP 12000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 1.1 3.0 3.3 3.7 4.7 5.1 5.3 5.7 6.2 7.7 12.8 5.1 9%
Level 2 1.2 2.8 3.1 3.5 4.3 4.6 4.8 5.1 5.6 6.5 10.3 4.6 17%
Level 3 1.2 3.2 3.5 4.0 5.1 5.5 5.7 6.1 6.7 8.0 13.4 5.5 3%
Level 4 1.3 3.7 4.0 4.5 5.8 6.2 6.6 7.0 7.7 9.6 16.7 6.4 1%



## E-1 9PTHP 12000, Level 1 PTHP 12000, Level 2

PTHP 12000, Level 3 PTHP 12000, Level 4 

# Figure E.2.16 Cumulative Chart of PBP fo r All Efficiency Levels : PTHP 1200 0

E-2 0

# E.2.5 Non-Standard Size PTAC with Cooling Capacity of 11,000 Btu/h (PTAC 11000)
Figure E.2.17 shows the variation of the life-cyc le cost with the installed cost for each of the efficiency levels considered for the analysis . The installed cost is the sum of the equipment price and the installation cost of the equipment and the former is the largest contributor to the increasing total installed cost as the efficiency level rises from Level 0 to Level 3 (with reduced energy consumption). The LCC results show that at the higher efficiency levels (Level 1 - Level 3), the lifetime operating cost has more of an impact on the LCC than the total installed cost. In other words, the decrea se in lifetime operating costs (due to reduced electricity costs) offsets the increase in total installed cost. As a result, the LCC at all efficiency levels is lower than that for the baseline efficiency leve l (Level 0) for this equipment class. Table E.2.9 shows the national distribution of LCC savings above the baseline (Level 0) calculated for this equipment for the higher efficiency levels [1-3]. Figure E.2.18 show this distribution of LCC savings graphically for each efficiency level analyzed.
Figure E.2.19 shows the effect on payback peri od as the efficiency level changes from Level 0 (baseline) to Level 3, on a national aver aged basis weighted ove r all building types, energy prices, sales taxes and installation costs. Table E.2.10 shows the na tional distribution of payback periods calculated for all efficiency levels as well as the average payback and the percent of units with a payb ack of less than 3 years. Figure E.2.20 show this distribution of payback results graphically for each efficiency level analyzed.

E-2 1

### Efficiency Leve l-LCC Tradeoff

Equipment= PTHP Standard Size - 12,000 Btu/h, Fuel Price=AEO 2008 - Reference Case, Start Year= 2012

$4,340

$4,324

$4,315

$4,312 $4,310 $4,315 $4,320 $4,325 $4,330 $4,335 $4,340 $4,345Life Cycle Cost

LCC-Efficiency Level Tradeoff

0 1 2 3 

### Efficiency Level


# Figure E.2.1 7 Effect of the Change in Efficien cy Level on Average Life-Cycle Cost for PTAC 11000 (Level 0 is the Baseline Level).

Table E.2. 9 Distribution of Life-Cycle Cost S avings from a Baseline Level (Level 0) by Efficiency Level for PTAC 11000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$21 -$7 -$1 $6 $12 $19 $27 $36 $46 $65 $449 $26 79%
Level 2 -$33 -$15 -$6 $2 $11 $20 $30 $42 $56 $81 $593 $30 73%
Level 3 -$46 -$25 -$14 -$4 $7 $18 $31 $45 $62 $93 $725 $31 67%



## E-2 2PTAC 11000 Level 1 PTAC 11000 Level 2

PTAC 11000 Level 3 

# Figure E.2.18 Cumulative Chart of LCC Savi ngs for All Efficiency Levels : PTAC 1100 0

E-2 3

### Payback Period -Effic iency Level Tradeoff
Equipment= PTHP Standard Size - 12,000 Btu/h, Fuel Price=AEO 2008 - Reference Case, Start Year= 2012

4.1 4.9

4.5

4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9Payback Period (Years) Payback Period-Efficiency Level Tradeoff



### 0 1 2 3 

### Efficiency Level


# Figure E.2.19 Effect of the Change in Effici ency Level on Average P PTAC 11000 (Level 0 is the Baseline Level). ayback Period for

Table E.2.10 Summary of PBP Results for All Efficiency Levels: PTAC 11000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 0.5 1.7 2.4 2.9 3.1 3.4 3.9 4.7 5.6 7.8 37.8 4.4 35%
Level 2 0.6 2.0 2.8 3.3 3.6 3.9 4.5 5.5 6.5 9.1 48.4 5.1 21%
Level 3 0.7 2.2 3.2 3.8 4.1 4.4 5.1 6.3 7.5 10.5 65.5 5.9 19%



## E-2 4PTAC 11000, Level 1 PTAC 11000, Level 2

PTAC 11000, Level 3 

# Figure E.2.20 Cumulative Chart of PBP fo r All Efficiency Levels : PTAC 1100 0

E-2 5

# E.2.6 Non-Standard Size PTHP with Coolin g Capacity of 11,000 Btu/h (PTHP 11000)
Figure E.2.21 shows the variation of the life-cycle cost for ea ch of the efficiency levels considered for the analysis. The installed cost is the sum of the equipment price and the installation cost of the equipment and the former is the largest contributor to the increasing total installed cost as the efficiency level rises from Level 0 to Level 3 (with reduced energy consumption). The LCC results show that at the hi gher efficiency levels (L evel 1 - Level 3), the lifetime operating cost has more of an impact on th e LCC than the total installed cost. In other words, the decrease in lifetime operating costs (due to reduced electricity costs) offsets the increase in total installed cost. As a result, the L CC at all efficiency levels is lower than that for the baseline efficiency level (Level 0) for this equipment class. Table E.2.11 shows the national distribution of LCC savings above the baseline (Level 0) calculated for this equipment for the higher efficiency levels [1-3]. Figure E.2.22 show this distributi on of LCC savings graphically for each efficiency level analyzed.
Figure E.2.23 shows the effect on payback peri od as the efficiency level changes from Level 0 (baseline) to Level 3, on a national aver aged basis weighted ove r all building types, energy prices, sales taxes and installation costs. Table E.2.12 shows the na tional distribution of payback periods calculated for all efficiency levels as well as the average payback and the percent of units with a payb ack of less than 3 years. Figure E.2.24 show this distribution of payback results graphically for each efficiency level analyzed.

E-2 6

### Efficiency Level-LCC Tradeoff

Equipment= PTAC Non-Standard Size - 11,000 Btu/h, Fuel Price=AEO 2008 - Reference Case, Start Year= 2012Life Cycle Cost $3,745

$3,743 $3,740

$3,735

$3,730

$3,725

$3,720

$3,715

$3,710

$3,708 $3,70 5 0 1 2 3 

### Efficiency Leve l $3,713

$3,709 LCC-Efficiency Level Tradeoff



# Figure E.2.2 1 Effect of the Change in Efficien cy Level on Average Life-Cycle Cost for PTHP 11000 (Level 0 is the Baseline Level).
Table E.2.11 Distribution of Life-Cycle Cost S avings from a Baseline Level (Level 0) by Efficiency Level for PTHP 11000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$12 $14 $24 $35 $43 $55 $66 $78 $93 $120 $513 $62 97%
Level 2 -$24 $8 $19 $33 $43 $56 $71 $85 $103 $136 $657 $66 95%
Level 3 -$33 $7 $22 $39 $51 $69 $86 $104 $127 $168 $789 $80 93%



## E-2 7PTHP 11000 Level 1 PTHP 11000 Level 2

PTHP 11000 Level 3 

# Figure E.2.22 Cumulative Chart of LCC Saving s for All Efficiency Levels : PTHP 1100 0

E-2 8

### Payback Period -Effic iency Level Tradeoff
Equipment= PTAC Non-Standard Size - 11,000 Btu/h, Fuel Price=AEO 2008 - Reference Case, Start Year= 2012

3.7 4.2

3.2

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5Payback Period (Years) Payback Period-Efficiency Level Tradeoff



### 0 1 2 3 

### Efficiency Level


# Figure E.2.23 Effect of the Change in Effici ency Level on Average P PTHP 11000 (Level 0 is the Baseline Level). ayback Period for

Table E.2.12 Summary of PBP Results fo r All Efficiency Levels: PTHP 11000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 0.5 1.3 1.4 1.6 2.0 2.1 2.2 2.4 2.6 3.1 5.1 2.2 87%
Level 2 0.6 1.6 1.8 2.0 2.5 2.7 2.8 3.1 3.4 4.1 7.0 2.8 67%
Level 3 0.7 1.8 1.9 2.2 2.7 2.9 3.1 3.3 3.6 4.3 7.2 3.0 55%



## E-2 9PTHP 11000, Level 1 PTHP 11000, Level 2

PTHP 11000, Level 3 

# Figure E.2.24 Cumulative Chart of PBP fo r All Efficiency Levels : PTHP 1100 0

E-3 0

# E.3 SENSITIVITY OF LCC RESULTS TO ELECTRICITY PRICE FORECAST
This section contains detailed output from th e Life-Cycle Cost (LCC) sensitivity analysis to the electricity price escalation rates reported in chapter 8. These analyses were carried out using the LCC spreadsheet with the aggregated re sults reported in terms of national average LCC savings for each of the equipment classes at each efficiency level. See Chapter 8 for a further explanation of the sensitiv ity analysis and results.
Table E.3.1 through Table E.3.6 show the sensit ivity of LCC Savings assumed baseline efficiency level, for a baseline at Level 0 and e fficiency Levels 1 through Level 4 (standard –size equipment) and Levels 1 through 3 (non-standard ) for the low electricity rates contained in AEO 2008 . Table E.3.7 through Table E.3.12 show th e corresponding detailed impact for high electricity price forecast in AEO 2008. The level providing maximu m LCC savings is unaffected by selection of electricity pri ce escalation rate level, but th e magnitude of LCC savings is reduced for lower prices and increased for higher ones. Payback period is calculated based on first year energy savings and thus is insensitive to fuel escalati on rate scenarios after the first year. However, the payback period is lengthened from about a month to slightly more than a year by the low electricity price forecast for 2012 and shortened about one to eleven months by the high price forecast, as shown in Table E.3.13 through Table E.3.24.
Table E.3.1 Summary of LCC Results: Lo w Electricity Price Forecast, PTAC 9000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$14 -$10 -$9 -$7 -$6 -$4 -$2 $0 $2 $7 $104 -$2 29%
Level 2 -$24 -$18 -$15 -$13 -$11 -$8 -$5 -$1 $3 $10 $170 -$5 27%
Level 3 -$35 -$26 -$23 -$19 -$16 -$12 -$9 -$4 $2 $12 $233 -$8 23%
Level 4 -$47 -$35 -$31 -$27 -$23 -$18 -$13 -$7 $0 $13 $291 -$12 21%



# Table E.3.2 Summary of LCC Results: Lo w Electricity Price Forecast, PTAC 12000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$18 -$13 -$11 -$9 -$8 -$6 -$3 -$1 $2 $8 $126 -$3 27%
Level 2 -$31 -$23 -$20 -$17 -$14 -$11 -$7 -$3 $2 $12 $206 -$7 23%
Level 3 -$45 -$33 -$30 -$25 -$22 -$17 -$12 -$7 $0 $13 $279 -$12 21%
Level 4 -$60 -$45 -$41 -$35 -$31 -$25 -$19 -$12 -$3 $13 $348 -$18 17%



## E-3 1

# Table E.3.3 Summary of LCC Results: Lo w Electricity Price Forecast, PTHP 9000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$18 -$8 -$5 -$1 $2 $6 $10 $14 $20 $30 $180 $9 67%
Level 2 -$25 -$9 -$3 $2 $7 $13 $19 $25 $34 $49 $246 $17 73%
Level 3 -$33 -$11 -$3 $4 $10 $18 $25 $35 $45 $66 $309 $24 75%
Level 4 -$43 -$19 -$11 -$2 $4 $13 $22 $32 $44 $68 $368 $20 67%



# Table E.3.4 Summary of LCC Results: Lo w Electricity Price Forecast, PTHP 12000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$22 -$10 -$6 -$1 $2 $7 $12 $17 $24 $36 $218 $11 67%
Level 2 -$32 -$12 -$5 $2 $8 $15 $22 $30 $41 $59 $297 $20 73%
Level 3 -$44 -$22 -$14 -$6 $1 $9 $18 $27 $40 $61 $371 $15 61%
Level 4 -$57 -$33 -$24 -$16 -$7 $2 $12 $22 $37 $62 $440 $9 51%



# Table E.3.5 Summary of LCC Results: Lo w Electricity Price Forecast, PTAC 11000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$21 -$8 -$2 $4 $10 $16 $23 $32 $42 $59 $422 $23 77%
Level 2 -$33 -$16 -$8 $0 $8 $16 $26 $38 $50 $74 $557 $26 69%
Level 3 -$47 -$26 -$16 -$7 $3 $14 $26 $39 $55 $85 $681 $26 63%



## E-3 2

# Table E.3.6 Summary of LCC Results: Lo w Electricity Price Forecast, PTHP 11000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$13 $12 $21 $31 $39 $50 $61 $71 $86 $111 $482 $57 97%
Level 2 -$24 $5 $16 $29 $38 $51 $64 $78 $95 $126 $618 $60 93%
Level 3 -$34 $3 $18 $33 $45 $62 $78 $94 $117 $155 $741 $72 93%



# Table E.3.7 Summary of LCC Results: Hig h Electricity Price Forecast, PTAC 9000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$14 -$10 -$8 -$6 -$5 -$3 -$1 $1 $4 $9 $117 -$1 37%
Level 2 -$24 -$17 -$14 -$12 -$9 -$6 -$2 $1 $6 $14 $192 -$2 33%
Level 3 -$35 -$25 -$21 -$18 -$14 -$10 -$5 $0 $7 $18 $262 -$5 31%
Level 4 -$46 -$34 -$29 -$24 -$20 -$14 -$9 -$2 $6 $21 $329 -$8 27%



# Table E.3.8 Summary of LCC Results: Hig h Electricity Price Forecast, PTAC 12000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$17 -$12 -$10 -$8 -$6 -$4 -$2 $1 $5 $11 $142 -$1 35%
Level 2 -$30 -$22 -$19 -$15 -$12 -$8 -$4 $0 $6 $17 $232 -$4 31%
Level 3 -$44 -$32 -$28 -$23 -$19 -$14 -$8 -$2 $6 $20 $315 -$8 27%
Level 4 -$59 -$44 -$38 -$32 -$27 -$21 -$14 -$6 $4 $22 $393 -$13 23%



## E-3 3

# Table E.3.9 Summary of LCC Results: Hig h Electricity Price Forecast, PTHP 9000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$17 -$7 -$2 $2 $5 $9 $14 $18 $25 $36 $202 $13 73%
Level 2 -$24 -$6 $0 $7 $11 $18 $25 $32 $41 $59 $277 $23 81%
Level 3 -$32 -$7 $1 $10 $16 $25 $34 $44 $56 $79 $348 $31 81%
Level 4 -$41 -$15 -$6 $4 $11 $21 $31 $42 $56 $82 $415 $28 75%



# Table E.3.10 Summary of LCC Results: Hig h Electricity Price Forecast, PTHP 12000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$21 -$8 -$3 $2 $6 $12 $17 $22 $31 $44 $245 $15 73%
Level 2 -$30 -$8 -$1 $7 $14 $22 $30 $38 $50 $71 $335 $27 79%
Level 3 -$42 -$18 -$9 $0 $7 $17 $27 $37 $51 $75 $418 $24 69%
Level 4 -$55 -$29 -$19 -$9 $0 $10 $21 $33 $50 $77 $497 $18 59%


# Table E.3.11 Summary of LCC Results: Hig h Electricity Price Forecast, PTAC 11000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$21 -$6 $0 $7 $14 $21 $29 $39 $49 $69 $471 $29 81%
Level 2 -$32 -$13 -$4 $4 $13 $23 $34 $46 $61 $87 $623 $34 75%
Level 3 -$46 -$23 -$12 -$1 $10 $22 $35 $50 $68 $100 $762 $35 69%



## E-3 4

# Table E.3.12 Summary of LCC Results: Hig h Electricity Price Forecast, PTHP 11000

Efficiency Decrease in LCC from Baseline Efficiency (Level 0) Shown by Percentiles of the Distribution of Results (2006$) Mean Savings Percent of Units with LCC Savings 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 -$12 $16 $26 $38 $47 $59 $71 $83 $99 $127 $538 $66 97%
Level 2 -$23 $10 $22 $37 $47 $61 $76 $92 $110 $144 $690 $71 95%
Level 3 -$32 $10 $26 $43 $57 $75 $93 $111 $136 $179 $829 $87 95%



# Table E.3.13 Summary of PBP Results: Lo w Electricity Price Forecast, PTAC 9000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 1.2 4.1 6.0 7.4 7.9 8.7 10.2 13.1 16.0 24.6 100.0 13.9 1%
Level 2 1.2 4.3 6.2 7.7 8.3 9.2 10.7 13.8 16.7 26.6 100.0 14.6 1%
Level 3 1.3 4.5 6.6 8.2 8.8 9.7 11.3 14.6 17.8 28.7 100.0 15.4 1%
Level 4 1.4 4.7 6.9 8.6 9.3 10.2 11.9 15.5 18.9 30.8 100.0 16.3 1%



# Table E.3.14 Summary of PBP Results: Lo w Electricity Price Forecast, PTAC 12000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 1.2 4.2 6.2 7.6 8.3 9.1 10.4 13.2 16.2 24.7 100.0 14.0 1%
Level 2 1.3 4.4 6.5 8.1 8.8 9.6 11.0 14.2 17.2 26.6 100.0 14.9 1%
Level 3 1.4 4.7 6.9 8.6 9.4 10.3 11.7 15.2 18.5 28.9 100.0 15.8 1%
Level 4 1.4 5.0 7.4 9.2 10.0 11.0 12.5 16.2 19.9 31.6 100.0 17.0 1%



## E-3 5

# Table E.3.15 Summary of PBP Results: Lo w Electricity Price Forecast, PTHP 9000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 1.1 3.1 3.4 3.9 4.9 5.3 5.5 5.9 6.5 8.1 13.7 5.4 5%
Level 2 1.2 2.9 3.2 3.6 4.5 4.8 5.0 5.3 5.9 6.8 10.8 4.8 15%
Level 3 1.2 2.8 3.2 3.6 4.4 4.7 5.0 5.2 5.8 6.6 10.1 4.7 15%
Level 4 1.3 3.3 3.5 4.0 5.0 5.4 5.7 6.0 6.6 7.8 12.6 5.4 5%



# Table E.3.16 Summary of PBP Results: Lo w Electricity Price Forecast, PTHP 12000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 1.2 3.2 3.5 3.9 5.0 5.3 5.6 6.0 6.6 8.1 13.7 5.4 5%
Level 2 1.2 3.0 3.2 3.7 4.6 4.9 5.1 5.4 6.0 6.9 11.0 4.9 11%
Level 3 1.3 3.4 3.7 4.2 5.4 5.8 6.1 6.4 7.1 8.5 14.3 5.8 1%
Level 4 1.4 3.9 4.2 4.8 6.1 6.6 6.9 7.4 8.2 10.2 17.9 6.7 1%



# Table E.3.17 Summary of PBP Results: Lo w Electricity Price Forecast, PTAC 11000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 0.6 1.8 2.6 3.1 3.3 3.5 4.1 5.0 5.9 8.2 41.5 4.7 27%
Level 2 0.6 2.1 2.9 3.5 3.8 4.1 4.7 5.8 6.9 9.6 53.7 5.4 21%
Level 3 0.7 2.4 3.4 4.1 4.3 4.7 5.4 6.7 7.9 11.2 74.1 6.3 17%



## E-3 6

# Table E.3.18 Summary of PBP Results: Lo w Electricity Price Forecast, PTHP 11000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 0.5 1.4 1.5 1.7 2.1 2.3 2.4 2.5 2.8 3.3 5.4 2.3 85%
Level 2 0.6 1.7 1.9 2.1 2.6 2.8 3.0 3.2 3.6 4.3 7.4 2.9 61%
Level 3 0.7 1.9 2.0 2.3 2.9 3.1 3.2 3.5 3.8 4.6 7.6 3.1 47%



# Table E.3.19 Summary of PBP Results: High Electricity Price Forecast, PTAC 9000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 1.1 3.7 5.3 6.5 7.0 7.7 9.0 11.4 13.9 21.0 100.0 12.1 3%
Level 2 1.1 3.8 5.6 6.8 7.4 8.1 9.5 12.1 14.5 22.6 100.0 12.9 1%
Level 3 1.2 4.0 5.8 7.3 7.8 8.6 9.9 12.8 15.5 24.3 100.0 13.6 1%
Level 4 1.2 4.2 6.1 7.6 8.2 9.0 10.5 13.6 16.4 25.9 100.0 14.3 1%



# Table E.3.20 Summary of PBP Results: Hi gh Electricity Price Forecast, PTAC 12000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 1.1 3.8 5.5 6.8 7.4 8.1 9.2 11.6 14.2 21.4 100.0 12.2 1%
Level 2 1.2 4.0 5.8 7.2 7.8 8.5 9.8 12.5 15.1 22.9 100.0 13.2 1%
Level 3 1.2 4.2 6.2 7.6 8.3 9.1 10.4 13.3 16.2 24.7 100.0 14.0 1%
Level 4 1.3 4.5 6.6 8.2 8.9 9.7 11.1 14.2 17.4 26.9 100.0 15.0 1%



## E-3 7

# Table E.3.21 Summary of PBP Results: Hi gh Electricity Price Forecast, PTHP 9000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 1.0 2.8 3.0 3.5 4.4 4.7 5.0 5.3 5.8 7.2 12.0 4.8 17%
Level 2 1.1 2.6 2.8 3.2 4.0 4.3 4.5 4.7 5.2 6.1 9.6 4.3 25%
Level 3 1.1 2.5 2.9 3.2 3.9 4.2 4.4 4.7 5.1 5.9 9.0 4.2 25%
Level 4 1.2 2.9 3.2 3.6 4.5 4.8 5.1 5.3 5.9 6.9 11.1 4.8 13%



# Table E.3.22 Summary of PBP Results: Hi gh Electricity Price Forecast, PTHP 12000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 1.0 2.9 3.1 3.5 4.5 4.8 5.0 5.4 5.9 7.2 12.1 4.8 17%
Level 2 1.1 2.7 2.9 3.3 4.1 4.4 4.6 4.8 5.3 6.2 9.7 4.4 23%
Level 3 1.2 3.1 3.3 3.8 4.8 5.2 5.4 5.8 6.3 7.6 12.6 5.2 7%
Level 4 1.2 3.5 3.8 4.3 5.5 5.9 6.2 6.6 7.3 9.1 15.7 6.0 1%



# Table E.3.23 Summary of PBP Results: Hi gh Electricity Price Forecast, PTAC 11000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 0.5 1.6 2.3 2.8 2.9 3.2 3.7 4.5 5.3 7.3 34.7 4.2 43%
Level 2 0.6 1.9 2.6 3.2 3.4 3.7 4.2 5.2 6.2 8.6 44.0 4.8 25%
Level 3 0.7 2.1 3.0 3.6 3.9 4.2 4.9 6.0 7.1 9.9 58.6 5.6 19%



## E-3 8

# Table E.3.24 Summary of PBP Results: Hi gh Electricity Price Forecast, PTAC 11000

Efficiency Payback Period in Years Shown by Percentile s of the Distribution of Results Mean Percent Less than 3 Years Payback 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Level 1 0.5 1.3 1.4 1.5 1.9 2.0 2.1 2.3 2.5 3.0 4.8 2.1 91%
Level 2 0.5 1.6 1.7 1.9 2.3 2.5 2.7 2.9 3.2 3.9 6.6 2.6 73%
Level 3 0.6 1.7 1.8 2.1 2.6 2.8 2.9 3.1 3.4 4.1 6.8 2.8 65%



## E-3 9