# APPENDIX 7-A. DETAILED NATIONAL ENERGY SAVINGS AND NATIONAL NET PRESENT VALUE OUTPUT TABLE OF CONTENTS 7-A.1 INTRODUCTION ...............................................................................................................1 7-A.2 NATIONAL ENERGY SAVINGS AND NATIONAL NET PRESENT VALUE RESULTS CALCULATED FR OM THE MARKET BASELINE .........................1 7-A.3 DETAILED NATIONAL ENERGY SAVINGS AND NATIONAL NET VALUE RESULTS GRAPHICS ...........................................................................................3 7-A.3.1 SMALL GAS-FIRED HOT WATER BOILER .................................................. 4 7-A.3.2 SMALL GAS-FIRED STEAM ALL EX CEPT NATURAL DRAFT BOILER . 9 7-A.3.3 SMALL GAS-FIRED STEAM NATURAL DRAFT BOILER ........................ 14 7-A.3.4 SMALL OIL-FIRED HOT WATER BOILER .................................................. 19 7-A.3.5 SMALL OIL-FIRED STEAM BOILER ........................................................... 24 7-A.3.6 LARGE GAS-FIRED HOT WATER BOILER ................................................ 29 7-A.3.7 LARGE GAS-FIRED STEAM ALL EX CEPT NATURAL DRAFT BOILER 34 7-A.3.8 LARGE GAS-FIRED STEAM NATURAL DRAFT BOILER ........................ 40 7-A.3.9 LARGE OIL-FIRED HOT WATER BOILER .................................................. 45 7-A.3.10 LARGE OIL-FIRED STEAM BOILER ............................................................ 50 LIST OF TABLES Table 7-A.1 Cumulative National Energy Sa vings for Commercial Boiler Equipment (2012-2042) (Quadrillion Btu) by Equipment Class ...............................................1 Table 7-A.2 Cumulative NPV Results Based on a Seven Percent Discount Rate (Billion 2008$) by Equipment Class .....................................................................................2 Table 7-A.3 Cumulative NPV Results based on a Three percent Discount Rate (Billion 2008$) by Equipment Class .....................................................................................2 LIST OF FIGURES Figure 7-A. 1 Cumulative NPV Results for Small, Gas-fired, Hot Water Based on a Seven-Percent Discount Rate (Billion 2008$) .........................................................4 Figure 7-A. 2 National Annual Costs and Savi ngs for Small, Gas-fired, Hot Water, Level 1, Seven-Percent Discount Rate ...............................................................................4 Figure 7-A. 3 National Annual Costs and Savi ngs for Small, Gas-fired, Hot Water, Level 2, Seven-Percent Discount Rate ...............................................................................5 7-A-i

# Figure 7-A. 4 National Annual Costs and Savi ngs for Small, Gas-fired, Hot Water, Level 3, Seven-Percent Discount Rate ...............................................................................5 Figure 7-A. 5 National Annual Costs and Savi ngs for Small, Gas-fired, Hot Water, Level 4, Seven-Percent Discount Rate ...............................................................................6 Figure 7-A. 6 Cumulative NPV Results for Small, Gas-fired, Hot Water Based on a Three-Percent Discount Rate (Billion 2008$) .........................................................6 Figure 7-A. 7 National Annual Costs and Savi ngs for Small, Gas-fired, Hot Water, Level 1, Three-Percent Discount Rate ...............................................................................7 Figure 7-A. 8 National Annual Costs and Savi ngs for Small, Gas-fired, Hot Water, Level 2, Three-Percent Discount Rate ...............................................................................7 Figure 7-A. 9 National Annual Costs and Savi ngs for Small, Gas-fired, Hot Water, Level 3, Three-Percent Discount Rate ...............................................................................8 Figure 7-A. 10 National Annual Costs and Sa vings for Small, Gas-fired, Hot Water, Level 4, Three-Percent Discount Rate .....................................................................8 Figure 7-A. 11 Cumulative NPV Results for Small, Gas-fired, Steam, All Except natural Draft Based on a Seven-Percent Discount Rate (Billion 2008$) .............................9 Figure 7-A. 12 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 1, Seven-Percent Discount Rate ..................................9 Figure 7-A. 13 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 2, Seven-Percent Discount Rate ................................10 Figure 7-A. 14 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 3, Seven-Percent Discount Rate ................................10 Figure 7-A. 15 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 4, Seven-Percent Discount Rate ................................11 Figure 7-A. 16 Cumulative NPV Results for Small, Gas-fired, Steam, All Except natural Draft Based on a Three-Percent Discount Rate (Billion 2008$) ...........................11 Figure 7-A. 17 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 1, Three-Percent Discount Rate ................................12 Figure 7-A. 18 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 2, Three-Percent Discount Rate ................................12 Figure 7-A. 19 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 3, Three-Percent Discount Rate ................................13 7-A-ii

# Figure 7-A. 20 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 4, Three-Percent Discount Rate ................................13 Figure 7-A. 21 Cumulative NPV Results fo r Small, Gas-fired, Steam, Natural Draft Based on a Seven-Percent Discount Rate (Billion 2008$) ....................................14 Figure 7-A. 22 National Annual Costs and Sa vings for Small, Gas-fired, Steam, Natural Draft, Level 1, Seven-Percent Discount Rate ........................................................14 Figure 7-A. 23 National Annual Costs and Sa vings for Small, Gas-fired, Steam, Natural Draft, Level 2, Seven-Percent Discount Rate ........................................................15 Figure 7-A. 24 National Annual Costs and Sa vings for Small, Gas-fired, Steam, Natural Draft, Level 3, Seven-Percent Discount Rate ........................................................15 Figure 7-A. 25 Cumulative NPV Results fo r Small, Gas-fired, Steam, Natural Draft Based on a Three-Percent Discount Rate (Billion 2008$) .....................................16 Figure 7-A. 26 National Annual Costs and Sa vings for Small, Gas-fired, Steam, Natural Draft, Level 1, Three-Percent Discount Rate .........................................................17 Figure 7-A. 27 National Annual Costs and Sa vings for Small, Gas-fired, Steam, Natural Draft, Level 2, Three-Percent Discount Rate .........................................................17 Figure 7-A. 28 National Annual Costs and Sa vings for Small, Gas-fired, Steam, Natural Draft, Level 3, Three-Percent Discount Rate .........................................................18 Figure 7-A. 29 Cumulative NPV Results for Small, Oil-fired, Hot Water Based on a Seven-Percent Discount Rate (Billion 2008$) .......................................................19 Figure 7-A. 30 National Annual Costs and Sa vings for Small, Oil-fired, Hot Water, Level 1, Seven-Percent Discount Rate ...................................................................19 Figure 7-A. 31 National Annual Costs and Sa vings for Small, Oil-fired, Hot Water, Level 2, Seven-Percent Discount Rate ...................................................................20 Figure 7-A. 32 National Annual Costs and Sa vings for Small, Oil-fired, Hot Water, Level 3, Seven-Percent Discount Rate ...................................................................20 Figure 7-A. 33 Cumulative NPV Results for Small, Oil-fired, Hot Water Based on a Three-Percent Discount Rate (Billion 2008$) .......................................................21 Figure 7-A. 34 National Annual Costs and Sa vings for Small, Oil-Fired, Hot Water, Level 1, Three-Percent Discount Rate ...................................................................22 Figure 7-A. 35 National Annual Costs and Sa vings for Small, Oil-fired, Hot Water, Level 2, Three-Percent Discount Rate ...................................................................22 7-A-iii

# Figure 7-A. 36 National Annual Costs and Sa vings for Small, Oil-fired, Hot Water, Level 3, Three-Percent Discount Rate ...................................................................23 Figure 7-A. 37 Cumulative NPV Results for Small, Oil-fired, Steam Based on a SevenPercent Discount Rate (Billion 2008$) ..................................................................24 Figure 7-A. 38 National Annual Costs and Sa vings for Small, Oil-fired, Steam, Level 1, Seven-Percent Discount Rate .................................................................................24 Figure 7-A. 39 National Annual Costs and Sa vings for Small, Oil-fired, Steam, Level 2, Seven-Percent Discount Rate .................................................................................25 Figure 7-A. 40 National Annual Costs and Sa vings for Small, Oil-fired, Steam, Level 3, Seven-Percent Discount Rate .................................................................................25 Figure 7-A. 41 Cumulative NPV Results for Small, Oil-fired, Steam Based on a ThreePercent Discount Rate (Billion 2008$) ..................................................................26 Figure 7-A. 42 National Annual Costs and Sa vings for Small, Oil-fired, Steam, Level 1, Three-Percent Discount Rate .................................................................................27 Figure 7-A. 43 National Annual Costs and Sa vings for Small, Oil-fired, Steam, Level 2, Three-Percent Discount Rate .................................................................................27 Figure 7-A. 44 National Annual Costs and Sa vings for Small, Oil-fired, Steam, Level 3, Three-Percent Discount Rate .................................................................................28 Figure 7-A. 45 Cumulative NPV Results fo r Large, Gas-fired, Hot Water Based on a Seven-Percent Discount Rate (Billion 2008$) .......................................................29 Figure 7-A. 46 National Annual Costs and Sa vings for Large, Gas-fired, Hot Water, Level 1, Seven-Percent Discount Rate ...................................................................29 Figure 7-A. 47 National Annual Costs and Sa vings for Large, Gas-fired, Hot Water, Level 2, Seven-Percent Discount Rate ...................................................................30 Figure 7-A. 48 National Annual Costs and Sa vings for Large, Gas-fired, Hot Water, Level 3, Seven-Percent Discount Rate ...................................................................30 Figure 7-A. 49 National Annual Costs and Sa vings for Large, Gas-fired, Hot Water, Level 4, Seven-Percent Discount Rate ...................................................................31 Figure 7-A. 50 Cumulative NPV Results fo r Large, Gas-fired, Hot Water Based on a Three-Percent Discount Rate (Billion 2008$) .......................................................31 Figure 7-A. 51 National Annual Costs and Sa vings for Large, Gas-fired, Hot Water, Level 1, Three-Percent Discount Rate ...................................................................32 7-A-iv

# Figure 7-A. 52 National Annual Costs and Sa vings for Large, Gas-fired, Hot Water, Level 2, Three-Percent Discount Rate ...................................................................32 Figure 7-A. 53 National Annual Costs and Sa vings for Large, Gas-fired, Hot Water, Level 3, Three-Percent Discount Rate ...................................................................33 Figure 7-A. 54 National Annual Costs and Sa vings for Large, Gas-fired, Hot Water, Level 4, Three-Percent Discount Rate ...................................................................33 Figure 7-A. 55 Cumulative NPV Results for Large, Gas-fired, Steam, All Except Natural Draft Based on a Seven-Percent Discount Rate (Billion 2008$) ...........................34 Figure 7-A. 56 National Annual Costs and Savings for Large, Gas-fired, Steam, All Except Natural Draft, Level 1, Seven-Percent Discount Rate ...............................35 Figure 7-A. 57 National Annual Costs and Savings for Large, Gas-fired, Steam, All Except Natural Draft, Level 2, Seven-Percent Discount Rate ...............................35 Figure 7-A. 58 National Annual Costs and Savings for Large, Gas-fired, Steam, All Except Natural Draft, Level 3, Seven-Percent Discount Rate ...............................36 Figure 7-A. 59 National Annual Costs and Savings for Large, Gas-fired, Steam, All Except Natural Draft, Level 4, Seven-Percent Discount Rate ...............................36 Figure 7-A. 60 Cumulative NPV Results for Large, Gas-fired, Steam, All Except Natural Draft Based on a Three-Percent Discount Rate (Billion 2008$) ...........................37 Figure 7-A. 61 National Annual Costs and Savings for Large, Gas-fired, Steam, All Except Natural Draft, Level 1, Three-Percent Discount Rate ...............................37 Figure 7-A. 62 National Annual Costs and Savings for Large, Gas-fired, Steam, All Except Natural Draft, Level 2, Three-Percent Discount Rate ...............................38 Figure 7-A. 63 National Annual Costs and Savings for Large, Gas-fired, Steam, All Except Natural Draft, Level 3, Three-Percent Discount Rate ...............................38 Figure 7-A. 64 National Annual Costs and Savings for Large, Gas-fired, Steam, All Except Natural Draft, Level 4, Three-Percent Discount Rate ...............................39 Figure 7-A. 65 Cumulative NPV Results fo r Large, Gas-fired, Steam, Natural Draft Based on a Seven-Percent Discount Rate (Billion 2008$) ....................................40 Figure 7-A. 66 National Annual Costs and Sa vings for Large, Gas-fired, Steam, Natural Draft, Level 1, Seven-Percent Discount Rate ........................................................40 Figure 7-A. 67 National Annual Costs and Sa vings for Large, Gas-fired, Steam, Natural Draft, Level 2, Seven-Percent Discount Rate ........................................................41 7-A-v

# Figure 7-A. 68 National Annual Costs and Sa vings for Large, Gas-fired, Steam, Natural Draft, Level 3, Seven-Percent Discount Rate ........................................................41 Figure 7-A. 69 National Annual Costs and Sa vings for Large, Gas-fired, Steam, Natural Draft, Level 4, Seven-Percent Discount Rate ........................................................42 Figure 7-A. 70 Cumulative NPV Results fo r Large, Gas-fired, Steam, Natural Draft Based on a Three-Percent Discount Rate (Billion 2008$) .....................................42 Figure 7-A. 71 National Annual Costs and Sa vings for Large, Gas-fired, Steam, Natural Draft, Level 1, Three-Percent Discount Rate .........................................................43 Figure 7-A. 72 National Annual Costs and Sa vings for Large, Gas-fired, Steam, Natural Draft, Level 2, Three-Percent Discount Rate .........................................................43 Figure 7-A. 73 National Annual Costs and Sa vings for Large, Gas-fired, Steam, Natural Draft, Level 3, Three-Percent Discount Rate .........................................................44 Figure 7-A. 74 National Annual Costs and Sa vings for Large, Gas-fired, Steam, Natural Draft, Level 4, Three-Percent Discount Rate .........................................................44 Figure 7-A. 75 Cumulative NPV Results for Large, Oil-fired, Hot Water Based on a Seven-Percent Discount Rate (Billion 2008$) .......................................................45 Figure 7-A. 76 National Annual Costs and Sa vings for Large, Oil-fired, Hot Water, Level 1, Seven-Percent Discount Rate ...................................................................45 Figure 7-A. 77 National Annual Costs and Sa vings for Large, Oil-fired, Hot Water, Level 2, Seven-Percent Discount Rate ...................................................................46 Figure 7-A. 78 National Annual Costs and Sa vings for Large, Oil-fired, Hot Water, Level 3, Seven-Percent Discount Rate ...................................................................46 Figure 7-A. 79 Cumulative NPV Results for Large, Oil-fired, Hot Water Based on a Three-Percent Discount Rate (Bil lion 2008$), Three-Percent Discount Rate ........................................................................................................................47 Figure 7-A. 80 National Annual Costs and Sa vings for Large, Oil-fired, Hot Water, Level 1, Three-Percent Discount Rate ...................................................................48 Figure 7-A. 81 National Annual Costs and Sa vings for Large, Oil-fired, Hot Water, Level 2, Three-Percent Discount Rate ...................................................................48 Figure 7-A. 82 National Annual Costs and Sa vings for Large, Oil-fired, Hot Water, Level 3, Three-Percent Discount Rate ...................................................................49 Figure 7-A. 83 Cumulative NPV Results for Large, Oil-fired, Steam Based on a SevenPercent iscount Ra te (Billion 2008$) .....................................................................50 7-A-vi

# 7-A-vii Figure 7-A. 84 National Annual Costs and Sa vings for Large, Oil-fired, Steam, Level 1, Seven-Percent Discount Rate .................................................................................50 Figure 7-A. 85 National Annual Costs and Sa vings for Large, Oil-fired, Steam, Level 2, Seven-Percent Discount Rate .................................................................................51 Figure 7-A. 86 National Annual Costs and Sa vings for Large, Oil-fired, Steam, Level 3, Seven-Percent Discount Rate .................................................................................51 Figure 7-A. 87 National Annual Costs and Sa vings for Large, Oil-fired, Steam, Level 4, Seven-Percent Discount Rate .................................................................................52 Figure 7-A. 88 Cumulative NPV Results for Large, Oil-fired, Steam Based on a ThreePercent Discount Rate (Billion 2008$) ..................................................................52 Figure 7-A. 89 National Annual Costs and Sa vings for Large, Oil-fired, Steam, Level 1, Three-Percent Discount Rate .................................................................................53 Figure 7-A. 90 National Annual Costs and Sa vings for Large, Oil-fired, Steam, Level 2, Three-Percent Discount Rate .................................................................................53 Figure 7-A. 91 National Annual Costs and Sa vings for Large, Oil-fired, Steam, Level 3, Three-Percent Discount Rate .................................................................................54 Figure 7-A. 92 National Annual Costs and Sa vings for Large, Oil-fired, Steam, Level 4, Three-Percent Discount Rate .................................................................................54

# 7-A.1 INTRODUCTION Appendix 7-A contains detailed out put results from the National Energy Savings/National Economic Impact spreadsheet model. Results are presented for each equipment class in terms of cumulative en ergy savings (source) and cumulative net present value at each trial standard level and at a national level. See Chapter 7 for an explanation of the figures in this appendix 7-A.2 NATIONAL ENERGY SAVINGS AND NATIONAL NET PRESENT VALUE RESULTS CALCULATED FROM THE MARKET BASELINE Tables 7-A.1 through 7-A.3 show the nationa l energy savings and national net present value results from the NIA spreadsheet as ca lculated above the market baseline. As discussed in chapter 7, the subt raction of the impacts benefits from adoption of standards consistent with the ASHRAE 90.1-2007 levels in 2012 (impacts calculated from the market baseline) from the impacts benefits determined for adoption of higher standards (also calculated from the market baseline) allows determination of the net impacts for adoption of higher standards when compared with the adoption of standards at the ASHRAE 90.1-2007 baseline. Table 7-A.1 Cumulative National Energy Savings for Commercial Boiler Equipment (2012-2042) (Quadrillio n Btu) by Equipment Class Equipment Class Level 0 (ASHRAE)* Level 1 Level 2 Level 3 Level 4 Small, Gas-fired, Hot Water 0.013 0.035 0.085 0.153 0.225 Small, Gas-fired, Steam, All Except natural Draft 0.001 0.001 0.015 0.030 0.046 Small, Gas-fired, Steam, Natural Draft 0.038 0.032 0.054 0.080 na Small, Oil-fired, Hot Water 0.010 0.025 0.044 0.066 na Small, Oil-fired, Steam 0.005 0.014 0.031 0.073 na Large, Gas-fired, Hot Water 0.006 0.020 0.043 0.067 0.182 Large, Gas-fired, Steam, All Except Natural Draft 0.004 0.025 0.066 0.108 0.151 Large, Gas-fired, Steam, Natural Draft 0.029 0.007 0.031 0.061 0.096 Large, Gas-fired, Hot Water 0.000 0.014 0.024 0.034 na Large, Oil-fired, Steam 0.000 0.039 0.106 0.198 0.410 * 0.000 indicates savings are less than 0.0005 quadrillion Btu. na means that this e fficiency level was not available for ana lysis 

# 7-A-1

# Table 7-A.2 Cumulative NPV Results Ba sed on a Seven Percent Discount Rate (Billion 2008$) by Equipment Class Equipment Class Level 0 (ASHRAE)* Level 1 Level 2 Level 3 Level 4 Small, Gas-fired, Hot Water $0.046 $0.031 $0.034 ($0.124) ($0.504) Small, Gas-fired, Steam, All Except natural Draft $0.002 ($0.036 ($0.039) ($0.080) ($0.112) Small, Gas-fired, Steam, Natural Draft $0.041 $0.004 $0.025 $0.013 na Small, Oil-fired, Hot Water $0.038 $0.030 $0.037 ($0.004) na Small, Oil-fired, Steam $0.018 ($0.013) ($0.023) ($0.069) na Large, Gas-fired, Hot Water $0.020 $0.031 $0.047 $0.022 ($0.076) Large, Gas-fired, Steam, All Except Natural Draft $0.012 $0.039 $0.139 $0.237 $0.333 Large, Gas-fired, Steam, Natural Draft $0.062 $0.009 $0.041 $0.050 $0.018 Large, Gas-fired, Hot Water $0.037 $0.079 $0.109 $0.100 na Large, Oil-fired, Steam $0.000 $0.062 $0.183 $0.247 $0.501 * 0.000 indicates savings ar e less than $0.0005 billion. na means that this efficiency level wa s not available for analysis. Negative values shown in parentheses. 

# Table 7-A.3 Cumulative NPV Results based on a Three percent Discount Rate (Billion 2008$) by Equipment Class Equipment Class Level 0 (ASHRAE)* Level 1 Level 2 Level 3 Level 4 Small, Gas-fired, Hot Water $0.156 $0.233 $0.426 $0.291 ($0.377) Small, Gas-fired, Steam, All Except natural Draft $0.007 ($0.069) ($0.007) ($0.029) ($0.046) Small, Gas-fired, Steam, Natural Draft $0.270 $0.171 $0.311 $0.394 NA Small, Oil-fired, Hot Water $0.117 $0.170 $0.253 $0.236 NA Small, Oil-fired, Steam $0.056 $0.033 $0.069 $0.101 NA Large, Gas-fired, Hot Water $0.068 $0.161 $0.289 $0.324 $0.540 Large, Gas-fired, Steam, All Except Natural Draft $0.041 $0.207 $0.616 $1.024 $1.431 Large, Gas-fired, Steam, Natural Draft $0.311 $0.054 $0.230 $0.387 $0.484 Large, Gas-fired, Hot Water $0.071 $0.216 $0.313 $0.332 NA Large, Oil-fired, Steam $0.000 $0.302 $0.829 $1.324 $2.692 * 0.000 indicates savings are less than $0.0005 billion. na means that this efficiency level was not available for analysis. Negative values shown in parentheses. 

# 7-A-2

# 7-A.3 DETAILED NATIONAL ENERGY SAVINGS AND NATIONAL NET VALUE RESULTS GRAPHICS Figures 7-A.1 through 7-A.92 show the cumula tive national energy savings and national net present value results at both seven percen t and three percent discount rates as well as show the annual operating cost savings and an nual equipment costs (shown as negative savings) for each year from 2012-2085 for each efficiency level treated as a potential standard level. The results shown here represent the impacts for adoption of boiler standards higher than the levels specified in ASHRAE 90.1-2007.

7-A-3

# 7-A.3.1 SMALL GAS-FIRED HOT WATER BOILER Cumulative Source Energy Savings and NPV

0.00 0.05 0.10 0.15 0.20 0.25 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.05 0.1 0.15 0.2 0.25NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.05 0.10 0.15 0.20 0.25 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.05 0.1 0.15 0.2 0.25NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.05 0.10 0.15 0.20 0.25 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.05 0.1 0.15 0.2 0.25NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.05 0.10 0.15 0.20 0.25
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 1 Cumulative NPV Results for Sma ll, Gas-fired, Hot Water Based on a Seven-Percent Discount Rate (Billion 2008$) Efficiency Level Level 1 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 2 National Annual Costs and Savings for Small, Gas-fired, Hot Water, Level 1, SevenPercent Discount Rate 

# 7-A-4

### Efficiency Level Level 2 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 3 National Annual Costs and Savings for Small, Gas-fired, Hot Water, Level 2, SevenPercent Discount Rate Efficiency Level Level 3 

## Net Savings -0.1 -0.08 -0.06 -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.1 -0.08 -0.06 -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.1 -0.08 -0.06 -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.1 -0.08 -0.06 -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 4 National Annual Costs and Savings for Small, Gas-fired, Hot Water, Level 3, SevenPercent Discount Rate 

# 7-A-5

### Efficiency Level Level 4 

## Net Savings -0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 5 National Annual Costs and Savings for Small, Gas-fired, Hot Water, Level 4, SevenPercent Discount Rate Cumulative Source Energy Savings and NPV

0.00 0.05 0.10 0.15 0.20 0.25 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.05 0.1 0.15 0.2 0.25NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.05 0.10 0.15 0.20 0.25 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.05 0.1 0.15 0.2 0.25NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.05 0.10 0.15 0.20 0.25 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.05 0.1 0.15 0.2 0.25NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.05 0.10 0.15 0.20 0.25
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 6 Cumulative NPV Results for Sma ll, Gas-fired, Hot Water Based on a Three-Percent Discount Rate (Billion 2008$) 

# 7-A-6

### Efficiency Level Level 1 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 7 National Annual Costs and Savings for Small, Gas-fired, Hot Water, Level 1, ThreePercent Discount Rate Efficiency Level Level 2 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 8 National Annual Costs and Savings for Small, Gas-fired, Hot Water, Level 2, ThreePercent Discount Rate 

# 7-A-7

### Efficiency Level Level 3 

## Net Savings -0.1 -0.08 -0.06 -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.1 -0.08 -0.06 -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.1 -0.08 -0.06 -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.1 -0.08 -0.06 -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 9 National Annual Costs and Savings for Small, Gas-fired, Hot Water, Level 3, ThreePercent Discount Rate Efficiency Level Level 4 

## Net Savings -0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 10 National Annual Costs and Savings for Small, Gas-fired, Hot Water, Level 4, ThreePercent Discount Rate 

# 7-A-8

# 7-A.3.2 SMALL GAS-FIRED STEAM A LL EXCEPT NATURAL DRAFT BOILER Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 0.045 0.05NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 0.045 0.05NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 0.045 0.05NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.12 -0.1 -0.08 -0.06 -0.04 -0.02 0NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 11 Cumulative NPV Results for Small, Gas-fired, Steam, All Ex cept natural Draft Based on a Seven-Percent Discount Rate (Billion 2008$) Efficiency Level Level 1 

## Net Savings -0.008 -0.007 -0.006 -0.005 -0.004 -0.003 -0.002 -0.001 0
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.008 -0.007 -0.006 -0.005 -0.004 -0.003 -0.002 -0.001 0
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.008 -0.007 -0.006 -0.005 -0.004 -0.003 -0.002 -0.001 0
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.008 -0.007 -0.006 -0.005 -0.004 -0.003 -0.002 -0.001 0
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 12 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 1, Seven-Percent Discount Rate 

# 7-A-9

### Efficiency Level Level 2 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 13 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 2, Seven-Percent Discount Rate Efficiency Level Level 3 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 14 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 3, Seven-Percent Discount Rate 

# 7-A-10

### Efficiency Level Level 4 

## Net Savings -0.05 -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.05 -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.05 -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.05 -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 15 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 4, Seven-Percent Discount Rate Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 0.045 0.05NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 0.045 0.05NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 0.045 0.05NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.08 -0.07 -0.06 -0.05 -0.04 -0.03 -0.02 -0.01 0NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 16 Cumulative NPV Results for Small, Gas-fired, Steam, All Ex cept natural Draft Based on a Three-Percent Discou nt Rate (Billion 2008$) 

# 7-A-11

### Efficiency Level Level 1 

## Net Savings -0.008 -0.007 -0.006 -0.005 -0.004 -0.003 -0.002 -0.001 0
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.008 -0.007 -0.006 -0.005 -0.004 -0.003 -0.002 -0.001 0
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.008 -0.007 -0.006 -0.005 -0.004 -0.003 -0.002 -0.001 0
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.008 -0.007 -0.006 -0.005 -0.004 -0.003 -0.002 -0.001 0
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 17 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 1, Three-Percent Discount Rate Efficiency Level Level 2 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 18 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 2, Three-Percent Discount Rate 

# 7-A-12

### Efficiency Level Level 3 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 19 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 3, Three-Percent Discount Rate Efficiency Level Level 4 

## Net Savings -0.05 -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.05 -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.05 -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.05 -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 20 National Annual Costs and Savings for Small, Gas-fired, Steam, All Except natural Draft, Level 4, Three-Percent Discount Rate 

# 7-A-13

# 7-A.3.3 SMALL GAS-FIRED STEA M NATURAL DRAFT BOILER Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.02 0.03 0.04 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.01 0 0.01 0.02 0.03 0.04 0.05NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.02 0.03 0.04 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.01 0 0.01 0.02 0.03 0.04 0.05NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.02 0.03 0.04 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.01 0 0.01 0.02 0.03 0.04 0.05NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.02 0.03 0.04 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.04 -0.035 -0.03 -0.025 -0.02 -0.015 -0.01 -0.005 0NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 21 Cumulative NPV Results for Sma ll, Gas-fired, Steam, Na tural Draft Based on a Seven-Percent Discount Rate (Billion 2008$) Efficiency Level Level 1 

## Net Savings -0.012 -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006 0.008
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.012 -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006 0.008
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.012 -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006 0.008
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.012 -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006 0.008
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 22 National Annual Costs and Savings for Small, Gas-fired, Steam, Natural Draft, Level 1, Seven-Percent Discount Rate 

# 7-A-14

### Efficiency Level Level 2 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 23 National Annual Costs and Savings for Small, Gas-fired, Steam, Natural Draft, Level 2, Seven-Percent Discount Rate Efficiency Level Level 3 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 24 National Annual Costs and Savings for Small, Gas-fired, Steam, Natural Draft, Level 3, Seven-Percent Discount Rate 

# 7-A-15

# Note: There is no Level 4 for this product class Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.02 0.03 0.04 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.01 0 0.01 0.02 0.03 0.04 0.05NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.02 0.03 0.04 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.01 0 0.01 0.02 0.03 0.04 0.05NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.02 0.03 0.04 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.01 0 0.01 0.02 0.03 0.04 0.05NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.01 0.00 0.01 0.02 0.03 0.04 0.05 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.15 -0.1 -0.05 0 0.05 0.1 0.15NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 25 Cumulative NPV Results for Sma ll, Gas-fired, Steam, Na tural Draft Based on a Three-Percent Discount Rate (Billion 2008$) 

# 7-A-16

### Efficiency Level Level 1 

## Net Savings -0.012 -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006 0.008
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.012 -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006 0.008
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.012 -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006 0.008
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.012 -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006 0.008
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 26 National Annual Costs and Savings for Small, Gas-fired, Steam, Natural Draft, Level 1, Three-Percent Discount Rate Efficiency Level Level 2 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 27 National Annual Costs and Savings for Small, Gas-fired, Steam, Natural Draft, Level 2, Three-Percent Discount Rate 

# 7-A-17

### Efficiency Level Level 3 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 28 National Annual Costs and Savings for Small, Gas-fired, Steam, Natural Draft, Level 3, Three-Percent Discount Rate 

# Note: There is no Level 4 for this product class 7-A-18

# 7-A.3.4 SMALL OIL-FIRED HOT WATER BOILER Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.045 -0.04 -0.035 -0.03 -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 29 Cumulative NPV Results for Sma ll, Oil-fired, Hot Water Based on a Seven-Percent Discount Rate (Billion 2008$) Efficiency Level Level 1 

## Net Savings -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 30 National Annual Costs and Savings for Small, Oil-fired, Hot Water, Level 1, SevenPercent Discount Rate 

# 7-A-19

### Efficiency Level Level 2 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 31 National Annual Costs and Savings for Small, Oil-fired, Hot Water, Level 2, SevenPercent Discount Rate Efficiency Level Level 3 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 32 National Annual Costs and Savings for Small, Oil-fired, Hot Water, Level 3, SevenPercent Discount Rate 

# 7-A-20

# Note: There is no Level 4 for this product class Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 33 Cumulative NPV Results for Sma ll, Oil-fired, Hot Water Based on a Three-Percent Discount Rate (Billion 2008$) 

# 7-A-21

### Efficiency Level Level 1 

## Net Savings -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 34 National Annual Costs and Savings for Small, Oil-Fired, Hot Water, Level 1, ThreePercent Discount Rate Efficiency Level Level 2 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 35 National Annual Costs and Savings for Small, Oil-fired, Hot Water, Level 2, ThreePercent Discount Rate 

# 7-A-22

### Efficiency Level Level 3 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 36 National Annual Costs and Savings for Small, Oil-fired, Hot Water, Level 3, ThreePercent Discount Rate 

# Note: There is no Level 4 for this product class 7-A-23

# 7-A.3.5 SMALL OIL-FIRED STEAM BOILER Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.09 -0.08 -0.07 -0.06 -0.05 -0.04 -0.03 -0.02 -0.01 0NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 37 Cumulative NPV Results for Sm all, Oil-fired, Steam Based on a Seven-Percent Discount Rate (Billion 2008$) Efficiency Level Level 1 

## Net Savings -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 38 National Annual Costs and Savings for Small, Oil-fired, Steam, Level 1, SevenPercent Discount Rate 

# 7-A-24

### Efficiency Level Level 2 

## Net Savings -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 39 National Annual Costs and Savings for Small, Oil-fired, Steam, Level 2, SevenPercent Discount Rate Efficiency Level Level 3 

## Net Savings -0.06 -0.04 -0.02 0 0.02 0.04 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.06 -0.04 -0.02 0 0.02 0.04 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.06 -0.04 -0.02 0 0.02 0.04 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.06 -0.04 -0.02 0 0.02 0.04 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 40 National Annual Costs and Savings for Small, Oil-fired, Steam, Level 3, SevenPercent Discount Rate 

# 7-A-25

# Note: There is no Level 4 for this product class Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 41 Cumulative NPV Results for Sm all, Oil-fired, Steam Ba sed on a Three-Percent Discount Rate (Billion 2008$) 

# 7-A-26

### Efficiency Level Level 1 

## Net Savings -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 42 National Annual Costs and Saving s for Small, Oil-fired, Steam, Level 1, ThreePercent Discount Rate Efficiency Level Level 2 

## Net Savings -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 43 National Annual Costs and Saving s for Small, Oil-fired, Steam, Level 2, ThreePercent Discount Rate 

# 7-A-27

### Efficiency Level Level 3 

## Net Savings -0.06 -0.04 -0.02 0 0.02 0.04 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.06 -0.04 -0.02 0 0.02 0.04 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.06 -0.04 -0.02 0 0.02 0.04 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.06 -0.04 -0.02 0 0.02 0.04 0.06
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 44 National Annual Costs and Saving s for Small, Oil-fired, Steam, Level 3, ThreePercent Discount Rate 

# Note: There is no Level 4 for this product class 7-A-28

# 7-A.3.6 LARGE GAS-FIRED HOT WATER BOILER Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.1 -0.08 -0.06 -0.04 -0.02 0 0.02 0.04NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 45 Cumulative NPV Results for Large, Gas-fired, Hot Water Based on a Seven-Percent Discount Rate (Billion 2008$) Efficiency Level Level 1 

## Net Savings -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 46 National Annual Costs and Savings for Large, Gas-fired, Hot Water, Level 1, SevenPercent Discount Rate 

# 7-A-29

### Efficiency Level Level 2 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 47 National Annual Costs and Savings for Large, Gas-fired, Hot Water, Level 2, SevenPercent Discount Rate Efficiency Level Level 3 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 48 National Annual Costs and Savings for Large, Gas-fired, Hot Water, Level 3, SevenPercent Discount Rate 

# 7-A-30

### Efficiency Level Level 4 

## Net Savings -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 49 National Annual Costs and Savings for Large, Gas-fired, Hot Water, Level 4, SevenPercent Discount Rate Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.1 0.2 0.3 0.4 0.5 0.6NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 50 Cumulative NPV Results for Larg e, Gas-fired, Hot Water Based on a Three-Percent Discount Rate (Billion 2008$) 

# 7-A-31

### Efficiency Level Level 1 

## Net Savings -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.01 -0.005 0 0.005 0.01 0.015
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 51 National Annual Costs and Savings for Large, Gas-fired, Hot Water, Level 1, ThreePercent Discount Rate Efficiency Level Level 2 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 52 National Annual Costs and Savings for Large, Gas-fired, Hot Water, Level 2, ThreePercent Discount Rate 

# 7-A-32

### Efficiency Level Level 3 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 53 National Annual Costs and Savings for Large, Gas-fired, Hot Water, Level 3, ThreePercent Discount Rate Efficiency Level Level 4 

## Net Savings -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.1 -0.05 0 0.05 0.1 0.15
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 54 National Annual Costs and Savings for Large, Gas-fired, Hot Water, Level 4, ThreePercent Discount Rate 

# 7-A-33

# 7-A.3.7 LARGE GAS-FIRED STEAM A LL EXCEPT NATURAL DRAFT BOILER Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 55 Cumulative NPV Results for Larg e, Gas-fired, Steam, All Except Natural Draft Based on a Seven-Percent Disc ount Rate (Billion 2008$)


# 7-A-34

### Efficiency Level Level 1 

## Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 56 National Annual Costs and Savings for Large, Gas-fired, St eam, All Except Natural Draft, Level 1, Seven-Percent Discount Rate Efficiency Level Level 2 

## Net Savings -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 57 National Annual Costs and Savings for Large, Gas-fired, St eam, All Except Natural Draft, Level 2, Seven-Percent Discount Rate 

# 7-A-35

### Efficiency Level Level 3 

## Net Savings -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1 0.12
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1 0.12
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1 0.12
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

## Net Savings -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1 0.12
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 58 National Annual Costs and Savings for Large, Gas-fired, St eam, All Except Natural Draft, Level 3, Seven-Percent Discount Rate Efficiency Level Level 4 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 59 National Annual Costs and Savings for Large, Gas-fired, St eam, All Except Natural Draft, Level 4, Seven-Percent Discount Rate 

# 7-A-36

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 60 Cumulative NPV Results for Larg e, Gas-fired, Steam, All Except Natural Draft Based on a Three-Percent Disc ount Rate (Billion 2008$) Efficiency Level Level 1 

### Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 61 National Annual Costs and Savings for Large, Gas-fired, St eam, All Except Natural Draft, Level 1, Three-Percent Discount Rate 

# 7-A-37

### Efficiency Level Level 2 

### Net Savings -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05 0.06 0.07

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05 0.06 0.07

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05 0.06 0.07

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05 0.06 0.07

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 62 National Annual Costs and Savings for Large, Gas-fired, St eam, All Except Natural Draft, Level 2, Three-Percent Discount Rate Efficiency Level Level 3 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 63 National Annual Costs and Savings for Large, Gas-fired, St eam, All Except Natural Draft, Level 3, Three-Percent Discount Rate 

# 7-A-38

### Efficiency Level Level 4 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 64 National Annual Costs and Savings for Large, Gas-fired, St eam, All Except Natural Draft, Level 4, Three-Percent Discount Rate



# 7-A-39

# 7-A.3.8 LARGE GAS-FIRED STEAM NATURAL DRAFT BOILER Cumulative Source Energy Savings and NPV

-0.03 -0.02 -0.01 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.03 -0.02 -0.01 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.03 -0.02 -0.01 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.03 -0.02 -0.01 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.06 -0.05 -0.04 -0.03 -0.02 -0.01 0NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 65 Cumulative NPV Results for Larg e, Gas-fired, Steam, Natural Draft Based on a Seven-Percent Discount Rate (Billion 2008$) Efficiency Level Level 1 

### Net Savings -0.035 -0.03 -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.035 -0.03 -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.035 -0.03 -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.035 -0.03 -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 66 National Annual Costs and Savings for Large, Gas-fired, Steam, Natural Draft, Level 1, Seven-Percent Discount Rate 

# 7-A-40

### Efficiency Level Level 2 

### Net Savings -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 67 National Annual Costs and Savings for Large, Gas-fired, Steam, Natural Draft, Level 2, Seven-Percent Discount Rate Efficiency Level Level 3 

### Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 68 National Annual Costs and Savings for Large, Gas-fired, Steam, Natural Draft, Level 3, Seven-Percent Discount Rate 

# 7-A-41

### Efficiency Level Level 4 

### Net Savings -0.05 -0.04 -0.03 -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.05 -0.04 -0.03 -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.05 -0.04 -0.03 -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.05 -0.04 -0.03 -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 69 National Annual Costs and Savings for Large, Gas-fired, Steam, Natural Draft, Level 4, Seven-Percent Discount Rate Cumulative Source Energy Savings and NPV

-0.03 -0.02 -0.01 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.03 -0.02 -0.01 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.03 -0.02 -0.01 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

-0.03 -0.02 -0.01 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### -0.3 -0.25 -0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15 0.2NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 70 Cumulative NPV Results for Larg e, Gas-fired, Steam, Natural Draft Based on a Three-Percent Discount Rate (Billion 2008$) 

# 7-A-42

### Efficiency Level Level 1 

### Net Savings -0.035 -0.03 -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.035 -0.03 -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.035 -0.03 -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.035 -0.03 -0.025 -0.02 -0.015 -0.01 -0.005 0 0.005 0.01
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 71 National Annual Costs and Savings for Large, Gas-fired, Steam, Natural Draft, Level 1, Three-Percent Discount Rate Efficiency Level Level 2 

### Net Savings -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.01 -0.008 -0.006 -0.004 -0.002 0 0.002 0.004 0.006
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 72 National Annual Costs and Savings for Large, Gas-fired, Steam, Natural Draft, Level 2, Three-Percent Discount Rate 

# 7-A-43

### Efficiency Level Level 3 

### Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.02 -0.015 -0.01 -0.005 0 0.005 0.01 0.015 0.02

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 73 National Annual Costs and Savings for Large, Gas-fired, Steam, Natural Draft, Level 3, Three-Percent Discount Rate Efficiency Level Level 4 

### Net Savings -0.05 -0.04 -0.03 -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.05 -0.04 -0.03 -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.05 -0.04 -0.03 -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.05 -0.04 -0.03 -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 74 National Annual Costs and Savings for Large, Gas-fired, Steam, Natural Draft, Level 4, Three-Percent Discount Rate 

# 7-A-44

# 7-A.3.9 LARGE OIL-FIRED HOT WATER BOILER Cumulative Source Energy Savings and NPV

0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 75 Cumulative NPV Results for Large, Oil-fired, Hot Water Based on a Seven-Percent Discount Rate (Billion 2008$) Efficiency Level Level 1 

### Net Savings -0.004 -0.002 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.004 -0.002 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.004 -0.002 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.004 -0.002 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 76 National Annual Costs and Savings for Large, Oil-fired, Hot Water, Level 1, SevenPercent Discount Rate 

# 7-A-45

### Efficiency Level Level 2 

### Net Savings -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.005 0 0.005 0.01 0.015 0.02 0.025 2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 77 National Annual Costs and Savings for Large, Oil-fired, Hot Water, Level 2, SevenPercent Discount Rate Efficiency Level Level 3 

### Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 78 National Annual Costs and Savings for Large, Oil-fired, Hot Water, Level 3, SevenPercent Discount Rate 

# 7-A-46

# Note: There is no Level 4 for this product class Cumulative Source Energy Savings and NPV

0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04NPV (Billion 2007$) 

### Energy Savings NPV u 

### Cumulative Source Energy Savings and NPV

0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04
L e v e l 1 L e v e l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.05 0.1 0.15 0.2 0.25 0.3NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 79 Cumulative NPV Results for Large, Oil-fired, Hot Water Based on a Three-Percent

iscount Rate (Billion 2008$), Three-Percent Di scount Rate D 

# 7-A-47

### Efficiency Level Level 1 

### Net Savings -0.004 -0.002 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.004 -0.002 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.004 -0.002 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.004 -0.002 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 80 National Annual Costs and Savings for Large, Oil-fired, Hot Water, Level 1, ThreePercent Discount Rate Efficiency Level Level 2 

### Net Savings -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.005 0 0.005 0.01 0.015 0.02 0.025
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.005 0 0.005 0.01 0.015 0.02 0.025 2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 81 National Annual Costs and Savings for Large, Oil-fired, Hot Water, Level 2, ThreePercent Discount Rate 

# 7-A-48

### Efficiency Level Level 3 

### Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035
2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.01 -0.005 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 82 National Annual Costs and Savings for Large, Oil-fired, Hot Water, Level 3, ThreePercent Discount Rate 

# Note: There is no Level 4 for this product class
7-A-49

# 7-A.3.10 LARGE OIL-FIRED STEAM BOILER Cumulative Source Energy Savings and NPV

0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45
L e v e l 1 L e ve

l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.1 0.2 0.3 0.4 0.5 0.6NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 83 Cumulative NPV Results for La rge, Oil-fired, Steam Based on a Seven-Percent iscount Rate (Billion 2008$) Efficiency Level Level 1 

### Net Savings -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 84 National Annual Costs and Savings for Large, Oil-fired, Steam, Level 1, SevenPercent Discount Rate 

# 7-A-50

### Efficiency Level Level 2 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 85 National Annual Costs and Savings for Large, Oil-fired, Steam, Level 2, SevenPercent Discount Rate Efficiency Level Level 3 

### Net Savings -0.1 -0.05

0 0.05 0.1 0.15 0.2

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.1 -0.05

0 0.05 0.1 0.15 0.2

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.1 -0.05

0 0.05 0.1 0.15 0.2

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.1 -0.05

0 0.05 0.1 0.15 0.2

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 86 National Annual Costs and Savings for Large, Oil-fired, Steam, Level 3, SevenPercent Discount Rate 

# 7-A-51

### Efficiency Level Level 4 

### Net Savings -0.2 -0.1

0 0.1 0.2 0.3 0.4

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.2 -0.1

0 0.1 0.2 0.3 0.4

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.2 -0.1

0 0.1 0.2 0.3 0.4

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.2 -0.1

0 0.1 0.2 0.3 0.4

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact

# Figure 7-A. 87 National Annual Costs and Savings for Large, Oil-fired, Steam, Level 4, SevenPercent Discount Rate Cumulative Source Energy Savings and NPV

0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45
L e v e l 1 L e ve

l 2 L e v e l 3 L e v e l 4 

### Efficiency LevelCumulative Energy Savings (Quads) 

### 0 0.5 1 1.5 2 2.5 3NPV (Billion 2008$) 

### Energy Savings NPV u 

# Figure 7-A. 88 Cumulative NPV Results for La rge, Oil-fired, Steam Based on a Three-Percent Discount Rate (Billion 2008$) 

# 7-A-52

### Efficiency Level Level 1 

### Net Savings -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.02 -0.01

0 0.01 0.02 0.03 0.04 0.05

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 89 National Annual Costs and Saving s for Large, Oil-fired, Steam, Level 1, ThreePercent Discount Rate Efficiency Level Level 2 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.04 -0.02

0 0.02 0.04 0.06 0.08 0.1 0.12

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 90 National Annual Costs and Saving s for Large, Oil-fired, Steam, Level 2, ThreePercent Discount Rate 

# 7-A-53

### Efficiency Level Level 3 

### Net Savings -0.1 -0.05

0 0.05 0.1 0.15 0.2

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.1 -0.05

0 0.05 0.1 0.15 0.2

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.1 -0.05

0 0.05 0.1 0.15 0.2

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.1 -0.05

0 0.05 0.1 0.15 0.2

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 91 National Annual Costs and Saving s for Large, Oil-fired, Steam, Level 3, ThreePercent Discount Rate Efficiency Level Level 4 

### Net Savings -0.2 -0.1

0 0.1 0.2 0.3 0.4

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Select efficiency level to plot Annual Net Impacts trend. Net Savings -0.2 -0.1

0 0.1 0.2 0.3 0.4

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.2 -0.1

0 0.1 0.2 0.3 0.4

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2007$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

### Net Savings -0.2 -0.1

0 0.1 0.2 0.3 0.4

2012 2020 2028 2036 2044 2052 2060 2068 2076 2084 

### YearBillion 2008$ Undiscounted Total Annual Operating Savings Undiscounted Annual Equipment Purchase Savings Discounted Total Net Annual Impact 

# Figure 7-A. 92 National Annual Costs and Saving s for Large, Oil-fired, Steam, Level 4, ThreePercent Discount Rate 

# 7-A-54