Q-i

APPENDIX Q. LIFE-CYCLE COST (LCC) AND PAYBACK PERIOD (PBP) RESULTS 

TABLE OF CONTENTS

Q.1 LIFE-CYCLE COST RESULTS ........................................ Q-1

Q.1.1 Tariff-Based LCC Results ........................................ Q-2

Q.1.1.1 Commercial Unitary Air Conditioners, $65,000 Btu/h to 

<135,000 Btu/h ....................................... Q-2

Q.1.1.2 Commercial Unitary Air Conditioners, $135,000 Btu/h to 

<240,000 Btu/h ....................................... Q-6

Q.1.2 Hourly-Based Results .......................................... Q-11

Q.1.2.1 Commercial Unitary Air Conditioners, $65,000 Btu/h to 

<135,000 Btu/h ...................................... Q-11

Q.1.2.2 Commercial Unitary Air Conditioners, $135,000 Btu/h to 

<240,000 Btu/h ...................................... Q-15

Q.2 PAYBACK PERIOD RESULTS ....................................... Q-20

Q.2.1 Tariff-Based Results ........................................... Q-21

Q.2.1.1 Commercial Unitary Air Conditioners, $65,000 Btu/h to 

<135,000 Btu/h ...................................... Q-21

Q.2.1.2 Commercial Unitary Air Conditioners, $135,000 Btu/h to 

<240,000 Btu/h ...................................... Q-23

Q.2.2 Hourly-Based Results .......................................... Q-26

Q.2.2.1 Commercial Unitary Air Conditioners, $65,000 Btu/h to 

<135,000 Btu/h ...................................... Q-26

Q.2.2.2 Commercial Unitary Air Conditioners, $135,000 Btu/h to 

<240,000 Btu/h ...................................... Q-28

LIST OF FIGURES

Figure Q.1.1 $65,000 Btu/h to <135,000 Btu/h, 10.5 EER: Tariff-Based Frequency 

Chart of LCC Difference ........................................ Q-2

Figure Q.1.2 $65,000 Btu/h to <135,000 Btu/h, 10.5 EER: Tariff-Based Cumulative 

Chart of LCC Difference ........................................ Q-2

Figure Q.1.3 $65,000 Btu/h to <135,000 Btu/h, 11.0 EER: Tariff-Based Frequency 

Chart of LCC Difference ........................................ Q-3

Figure Q.1.4 $65,000 Btu/h to <135,000 Btu/h, 11.0 EER: Tariff-Based Cumulative 

Chart of LCC Difference ........................................ Q-3

Figure Q.1.5 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Tariff-Based Frequency 

Chart of LCC Difference ........................................ Q-4

Figure Q.1.6 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Tariff-Based Cumulative 

Chart of LCC Difference ........................................ Q-4

Figure Q.1.7 $65,000 Btu/h to <135,000 Btu/h, 12.0 EER: Tariff-Based Frequency 
Q-ii

Chart of LCC Difference ........................................ Q-5

Figure Q.1.8 $65,000 Btu/h to <135,000 Btu/h, 12.0 EER: Tariff-Based Cumulative 

Chart of LCC Difference ........................................ Q-5

Figure Q.1.9 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Tariff-Based Cumulative 

Chart of LCC Difference ........................................ Q-6

Figure Q.1.10 $135,000 Btu/h to <240,000 Btu/h, 10.0 EER: Tariff-Based Cumulative 

Chart of LCC Difference ........................................ Q-6

Figure Q.1.11 $135,000 Btu/h to <240,000 Btu/h, 10.5 EER: Tariff-Based Frequency 

Chart of LCC Difference ........................................ Q-7

Figure Q.1.12 $135,000 Btu/h to <240,000 Btu/h, 10.5 EER: Tariff-Based Cumulative 

Chart of LCC Difference ........................................ Q-7

Figure Q.1.13 $135,000 Btu/h to <240,000 Btu/h, 11.0 EER: Tariff-Based Frequency 

Chart of LCC Difference ........................................ Q-8

Figure Q.1.14 $135,000 Btu/h to <240,000 Btu/h, 11.0 EER: Tariff-Based Cumulative 

Chart of LCC Difference ........................................ Q-8

Figure Q.1.15 $135,000 Btu/h to <240,000 Btu/h, 11.5 EER: Tariff-Based Frequency 

Chart of LCC Difference ........................................ Q-9

Figure Q.1.16 $135,000 Btu/h to <240,000 Btu/h, 11.5 EER: Tariff-Based Cumulative 

Chart of LCC Difference ........................................ Q-9

Figure Q.1.17 $135,000 Btu/h to <240,000 Btu/h, 12.0 EER: Tariff-Based Frequency 

Chart of LCC Difference ....................................... Q-10

Figure Q.1.18 $135,000 Btu/h to <240,000 Btu/h, 12.0 EER: Tariff-Based Cumulative 

Chart of LCC Difference ....................................... Q-10

Figure Q.1.19 $65,000 Btu/h to <135,000 Btu/h, 10.5 EER: Hourly-Based Frequency 

Chart of LCC Difference ....................................... Q-11

Figure Q.1.20 $65,000 Btu/h to <135,000 Btu/h, 10.5 EER: Hourly-Based Cumulative 

Chart of LCC Difference ....................................... Q-11

Figure Q.1.21 $65,000 Btu/h to <135,000 Btu/h, 11.0 EER: Hourly-Based Frequency 

Chart of LCC Difference ....................................... Q-12

Figure Q.1.22 $65,000 Btu/h to <135,000 Btu/h, 11.0 EER: Hourly-Based Cumulative 

Chart of LCC Difference ....................................... Q-12

Figure Q.1.23 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Hourly-Based Frequency 

Chart of LCC Difference ....................................... Q-13

Figure Q.1.24 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Hourly-Based Cumulative 

Chart of LCC Difference ....................................... Q-13

Figure Q.1.25 $65,000 Btu/h to <135,000 Btu/h, 12.0 EER: Hourly-Based Frequency 

Chart of LCC Difference ....................................... Q-14

Figure Q.1.26 $65,000 Btu/h to <135,000 Btu/h, 12.0 EER: Hourly-Based Cumulative 

Chart of LCC Difference ....................................... Q-14

Figure Q.1.27 $135,000 Btu/h to <240,000 Btu/h, 10.0 EER: Hourly-Based Frequency 

Chart of LCC Difference ....................................... Q-15

Figure Q.1.28 $135,000 Btu/h to <240,000 Btu/h, 10.0 EER: Hourly-Based Cumulative 

Chart of LCC Difference ....................................... Q-15
Q-iii

Figure Q.1.29 $135,000 Btu/h to <240,000 Btu/h, 10.5 EER: Hourly-Based Frequency 

Chart of LCC Difference ....................................... Q-16

Figure Q.1.30 $135,000 Btu/h to <240,000 Btu/h, 10.5 EER: Hourly-Based Cumulative 

Chart of LCC Difference ....................................... Q-16

Figure Q.1.31 $135,000 Btu/h to <240,000 Btu/h, 11.0 EER: Hourly-Based Frequency 

Chart of LCC Difference ....................................... Q-17

Figure Q.1.32 $135,000 Btu/h to <240,000 Btu/h, 11.0 EER: Hourly-Based Cumulative 

Chart of LCC Difference ....................................... Q-17

Figure Q.1.33 $135,000 Btu/h to <240,000 Btu/h, 11.5 EER: Hourly-Based Frequency 

Chart of LCC Difference ....................................... Q-18

Figure Q.1.34 $135,000 Btu/h to <240,000 Btu/h, 11.5 EER: Hourly-Based Cumulative 

Chart of LCC Difference ....................................... Q-18

Figure Q.1.35 $135,000 Btu/h to <240,000 Btu/h, 12.0 EER: Hourly-Based Frequency 

Chart of LCC Difference ....................................... Q-19

Figure Q.1.36 $135,000 Btu/h to <240,000 Btu/h, 12.0 EER: Hourly-Based Cumulative 

Chart of LCC Difference ....................................... Q-19

Figure Q.2.1 $65,000 Btu/h to <135,000 Btu/h, 10.5 EER: Tariff-Based Frequency 

Chart of PBP ................................................ Q-21

Figure Q.2.2 $65,000 Btu/h to <135,000 Btu/h, 11.0 EER: Tariff-Based Frequency 

Chart of PBP ................................................ Q-21

Figure Q.2.3 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Tariff-Based Frequency 

Chart of PBP ................................................ Q-22

Figure Q.2.4 $65,000 Btu/h to <135,000 Btu/h, 12.0 EER: Tariff-Based Frequency 

Chart of PBP ................................................ Q-22

Figure Q.2.5 $135,000 Btu/h to <240,000 Btu/h, 10.0 EER: Tariff-Based Frequency 

Chart of PBP ................................................ Q-23

Figure Q.2.6 $135,000 Btu/h to <240,000 Btu/h, 10.5 EER: Tariff-Based Frequency 

Chart of PBP ................................................ Q-23

Figure Q.2.7 $135,000 Btu/h to <240,000 Btu/h, 11.0 EER: Tariff-Based Frequency 

Chart of PBP ................................................ Q-24

Figure Q.2.8 $135,000 Btu/h to <240,000 Btu/h, 11.5 EER: Tariff-Based Frequency 

Chart of PBP ................................................ Q-24

Figure Q.2.9 $135,000 Btu/h to <240,000 Btu/h, 12.0 EER: Tariff-Based Frequency 

Chart of PBP ................................................ Q-25

Figure Q.2.10 $65,000 Btu/h to <135,000 Btu/h, 10.5 EER: Hourly-Based Frequency 

Chart of PBP ................................................ Q-26

Figure Q.2.11 $65,000 Btu/h to <135,000 Btu/h, 11.0 EER: Hourly-Based Frequency 

Chart of PBP ................................................ Q-26

Figure Q.2.12 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Hourly-Based Frequency 

Chart of PBP ................................................ Q-27

Figure Q.2.13 $65,000 Btu/h to <135,000 Btu/h, 12.0 EER: Hourly-Based Frequency 

Chart of PBP ................................................ Q-27

Figure Q.2.14 $135,000 Btu/h to <240,000 Btu/h, 10.0 EER: Hourly-Based Frequency 
Q-iv

Chart of PBP ................................................ Q-28

Figure Q.2.15 $135,000 Btu/h to <240,000 Btu/h, 10.5 EER: Hourly-Based Frequency 

Chart of PBP ................................................ Q-28

Figure Q.2.16 $135,000 Btu/h to <240,000 Btu/h, 11.0 EER: Hourly-Based Frequency 

Chart of PBP ................................................ Q-29

Figure Q.2.17 $135,000 Btu/h to <240,000 Btu/h, 11.5 EER: Hourly-Based Frequency 

Chart of PBP ................................................ Q-29

Figure Q.2.18 $135,000 Btu/h to <240,000 Btu/h, 12.0 EER: Hourly-Based Frequency 

Chart of PBP ................................................ Q-30
Q-1

APPENDIX Q. LIFE-CYCLE COST (LCC) AND PAYBACK PERIOD (PBP) RESULTS 

Q.1 LIFE-CYCLE COST RESULTS

This section provides the frequency and cumulative distribution charts of the life-cycle

cost (LCC) results for all the efficiency improvement levels analyzed for both product classes of

commercial unitary air conditioners: 1) $65,000 Btu/h to <135,000 Btu/h and 2) $135,000 Btu/h

to <240,000 Btu/h. For details on the methodology used to calculate the LCC and payback period

(PBP) refer to Chapter 8.

The sections that follow present the LCC results from the two approaches used to

calculate LCC: 1) a monthly approach establishing annual energy costs using electricity prices

determined from electric utility tariffs and 2) an hourly approach establishing annual energy costs

using electricity prices that may exist assuming all electricity markets are deregulated. For each

efficiency level, frequency and cumulative charts are provided showing the distribution of

expected LCC differences from the baseline design.
Q-2

Figure Q.1.1 $65,000 Btu/h to <135,000 Btu/h, 10.5 EER: Tariff-Based Frequency

Chart of LCC Difference

Figure Q.1.2 $65,000 Btu/h to <135,000 Btu/h, 10.5 EER: Tariff-Based

Cumulative Chart of LCC Difference

Q.1.1 Tariff-Based LCC Results

Q.1.1.1 Commercial Unitary Air Conditioners, $65,000 Btu/h to <135,000 Btu/h
Q-3

Figure Q.1.3 $65,000 Btu/h to <135,000 Btu/h, 11.0 EER: Tariff-Based Frequency

Chart of LCC Difference

Figure Q.1.4 $65,000 Btu/h to <135,000 Btu/h, 11.0 EER: Tariff-Based

Cumulative Chart of LCC Difference
Q-4

Figure Q.1.5 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Tariff-Based Frequency

Chart of LCC Difference

Figure Q.1.6 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Tariff-Based

Cumulative Chart of LCC Difference
Q-5

Figure Q.1.7 $65,000 Btu/h to <135,000 Btu/h, 12.0 EER: Tariff-Based Frequency

Chart of LCC Difference

Figure Q.1.8 $65,000 Btu/h to <135,000 Btu/h, 12.0 EER: Tariff-Based

Cumulative Chart of LCC Difference
Q-6

Figure Q.1.9 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Tariff-Based

Cumulative Chart of LCC Difference

Figure Q.1.10 $135,000 Btu/h to <240,000 Btu/h, 10.0 EER: Tariff-Based

Cumulative Chart of LCC Difference

Q.1.1.2 Commercial Unitary Air Conditioners, $135,000 Btu/h to <240,000 Btu/h
Q-7

Figure Q.1.11 $135,000 Btu/h to <240,000 Btu/h, 10.5 EER: Tariff-Based

Frequency Chart of LCC Difference

Figure Q.1.12 $135,000 Btu/h to <240,000 Btu/h, 10.5 EER: Tariff-Based

Cumulative Chart of LCC Difference
Q-8

Figure Q.1.13 $135,000 Btu/h to <240,000 Btu/h, 11.0 EER: Tariff-Based

Frequency Chart of LCC Difference

Figure Q.1.14 $135,000 Btu/h to <240,000 Btu/h, 11.0 EER: Tariff-Based

Cumulative Chart of LCC Difference
Q-9

Figure Q.1.15 $135,000 Btu/h to <240,000 Btu/h, 11.5 EER: Tariff-Based

Frequency Chart of LCC Difference

Figure Q.1.16 $135,000 Btu/h to <240,000 Btu/h, 11.5 EER: Tariff-Based

Cumulative Chart of LCC Difference
Q-10

Figure Q.1.17 $135,000 Btu/h to <240,000 Btu/h, 12.0 EER: Tariff-Based

Frequency Chart of LCC Difference

Figure Q.1.18 $135,000 Btu/h to <240,000 Btu/h, 12.0 EER: Tariff-Based

Cumulative Chart of LCC Difference
Q-11

Figure Q.1.19 $65,000 Btu/h to <135,000 Btu/h, 10.5 EER: Hourly-Based

Frequency Chart of LCC Difference

Figure Q.1.20 $65,000 Btu/h to <135,000 Btu/h, 10.5 EER: Hourly-Based

Cumulative Chart of LCC Difference

Q.1.2 Hourly-Based Results

Q.1.2.1 Commercial Unitary Air Conditioners, $65,000 Btu/h to <135,000 Btu/h
Q-12

Figure Q.1.21 $65,000 Btu/h to <135,000 Btu/h, 11.0 EER: Hourly-Based

Frequency Chart of LCC Difference

Figure Q.1.22 $65,000 Btu/h to <135,000 Btu/h, 11.0 EER: Hourly-Based

Cumulative Chart of LCC Difference
Q-13

Figure Q.1.23 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Hourly-Based

Frequency Chart of LCC Difference

Figure Q.1.24 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Hourly-Based

Cumulative Chart of LCC Difference
Q-14

Figure Q.1.25 $65,000 Btu/h to <135,000 Btu/h, 12.0 EER: Hourly-Based

Frequency Chart of LCC Difference

Figure Q.1.26 $65,000 Btu/h to <135,000 Btu/h, 12.0 EER: Hourly-Based

Cumulative Chart of LCC Difference
Q-15

Figure Q.1.27 $135,000 Btu/h to <240,000 Btu/h, 10.0 EER: Hourly-Based

Frequency Chart of LCC Difference

Figure Q.1.28 $135,000 Btu/h to <240,000 Btu/h, 10.0 EER: Hourly-Based

Cumulative Chart of LCC Difference

Q.1.2.2 Commercial Unitary Air Conditioners, $135,000 Btu/h to <240,000 Btu/h
Q-16

Figure Q.1.29 $135,000 Btu/h to <240,000 Btu/h, 10.5 EER: Hourly-Based

Frequency Chart of LCC Difference

Figure Q.1.30 $135,000 Btu/h to <240,000 Btu/h, 10.5 EER: Hourly-Based

Cumulative Chart of LCC Difference
Q-17

Figure Q.1.31 $135,000 Btu/h to <240,000 Btu/h, 11.0 EER: Hourly-Based

Frequency Chart of LCC Difference

Figure Q.1.32 $135,000 Btu/h to <240,000 Btu/h, 11.0 EER: Hourly-Based

Cumulative Chart of LCC Difference
Q-18

Figure Q.1.33 $135,000 Btu/h to <240,000 Btu/h, 11.5 EER: Hourly-Based

Frequency Chart of LCC Difference

Figure Q.1.34 $135,000 Btu/h to <240,000 Btu/h, 11.5 EER: Hourly-Based

Cumulative Chart of LCC Difference
Q-19

Figure Q.1.35 $135,000 Btu/h to <240,000 Btu/h, 12.0 EER: Hourly-Based

Frequency Chart of LCC Difference

Figure Q.1.36 $135,000 Btu/h to <240,000 Btu/h, 12.0 EER: Hourly-Based

Cumulative Chart of LCC Difference
Q-20

Q.2 PAYBACK PERIOD RESULTS

This section provides the frequency charts of the payback period (PBP) results for all the

efficiency improvement levels analyzed for both product classes of commercial unitary air

conditioners: 1) $65,000 Btu/h to <135,000 Btu/h and 2) $135,000 Btu/h to <240,000 Btu/h. For

details on the methodology used to calculate the LCC and PBP refer to Chapter 8.

The sections that follow present the PBP results from the two approaches used to

calculate PBP: 1) a monthly approach establishing annual energy costs using electricity prices

determined from electric utility tariffs and 2) an hourly approach establishing annual energy costs

using electricity prices that may exist assuming all electricity markets are deregulated. For each

efficiency level, a frequency chart is provided showing the distribution of expected PBPs from the

baseline design.
Q-21

Figure Q.2.1 $65,000 Btu/h to <135,000 Btu/h, 10.5 EER: Tariff-Based Frequency

Chart of PBP

Figure Q.2.2 $65,000 Btu/h to <135,000 Btu/h, 11.0 EER: Tariff-Based Frequency

Chart of PBP

Q.2.1 Tariff-Based Results

Q.2.1.1 Commercial Unitary Air Conditioners, $65,000 Btu/h to <135,000 Btu/h
Q-22

Figure Q.2.3 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Tariff-Based Frequency

Chart of PBP

Figure Q.2.4 $65,000 Btu/h to <135,000 Btu/h, 12.0 EER: Tariff-Based Frequency

Chart of PBP
Q-23

Figure Q.2.5 $135,000 Btu/h to <240,000 Btu/h, 10.0 EER: Tariff-Based

Frequency Chart of PBP

Figure Q.2.6 $135,000 Btu/h to <240,000 Btu/h, 10.5 EER: Tariff-Based

Frequency Chart of PBP

Q.2.1.2 Commercial Unitary Air Conditioners, $135,000 Btu/h to <240,000 Btu/h
Q-24

Figure Q.2.7 $135,000 Btu/h to <240,000 Btu/h, 11.0 EER: Tariff-Based

Frequency Chart of PBP

Figure Q.2.8 $135,000 Btu/h to <240,000 Btu/h, 11.5 EER: Tariff-Based

Frequency Chart of PBP
Q-25

Figure Q.2.9 $135,000 Btu/h to <240,000 Btu/h, 12.0 EER: Tariff-Based

Frequency Chart of PBP
Q-26

Figure Q.2.10 $65,000 Btu/h to <135,000 Btu/h, 10.5 EER: Hourly-Based

Frequency Chart of PBP

Figure Q.2.11 $65,000 Btu/h to <135,000 Btu/h, 11.0 EER: Hourly-Based

Frequency Chart of PBP

Q.2.2 Hourly-Based Results

Q.2.2.1 Commercial Unitary Air Conditioners, $65,000 Btu/h to <135,000 Btu/h
Q-27

Figure Q.2.12 $65,000 Btu/h to <135,000 Btu/h, 11.5 EER: Hourly-Based

Frequency Chart of PBP

Figure Q.2.13 $65,000 Btu/h to <135,000 Btu/h, 12.0 EER: Hourly-Based

Frequency Chart of PBP
Q-28

Figure Q.2.14 $135,000 Btu/h to <240,000 Btu/h, 10.0 EER: Hourly-Based

Frequency Chart of PBP

Figure Q.2.15 $135,000 Btu/h to <240,000 Btu/h, 10.5 EER: Hourly-Based

Frequency Chart of PBP

Q.2.2.2 Commercial Unitary Air Conditioners, $135,000 Btu/h to <240,000 Btu/h
Q-29

Figure Q.2.16 $135,000 Btu/h to <240,000 Btu/h, 11.0 EER: Hourly-Based

Frequency Chart of PBP

Figure Q.2.17 $135,000 Btu/h to <240,000 Btu/h, 11.5 EER: Hourly-Based

Frequency Chart of PBP
Q-30

Figure Q.2.18 $135,000 Btu/h to <240,000 Btu/h, 12.0 EER: Hourly-Based

Frequency Chart of PBP