APPENDIX 9-C. NATIONAL ENERGY SAVINGS AND NET PRESENT VALUE
 

USING ALTERNATIVE ENERGY PRICE SCENARIOS
 

TABLE OF CONTENTS 

9-C.1 INTRODUCTION .................................................................................................... 9-C-1 

9-C.2 RESULTS USING ALTERNATIVE ENERGY PRICE SCENARIOS .................. 9-C-1 

9-C.2.1 NES/NPV RESULTS USING HIGH ECONOMIC GROWTH 

SCENARIO............................................................................................................... 9-C-1 

9-C.2.2 NES/NPV RESULTS USING LOW ECONOMIC GROWTH 

SCENARIO............................................................................................................... 9-C-5 

9-C.3 RESULTS USING ALTERNATIVE ENERGY PRICE SCENARIOS 

COMPARISON ........................................................................................................ 9-C-8
 

9-C.3.1 NATIONAL ENERGY SAVINGS (NES) ............................................................... 9-C-8
 

9-C.3.2 NET PRESENT VALUES (NPV).......................................................................... 9-C-13
 

LIST OF TABLES 

Table 9-C.2.1 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas-Fired Storage Water Heaters (High Growth) ........................ 9-C-1 

Table 9-C.2.2 Cumulative National Energy Savings and Consumer Net Present 

Value for Electric Storage Water Heaters (High Growth)............................ 9-C-2 

Table 9-C.2.3 Cumulative National Energy Savings and Consumer Net Present 

Value for Oil-Fired Storage Water Heater (High Growth)........................... 9-C-2 

Table 9-C.2.4 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas-Fired Instantaneous Storage Water Heaters (High 

Growth) ......................................................................................................... 9-C-2 

Table 9-C.2.5 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Wall Fan DHE (High Growth) .............................................. 9-C-3 

Table 9-C.2.6 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Wall Gravity DHE (High Growth) ........................................ 9-C-3 

Table 9-C.2.7 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Floor DHE (High Growth) .................................................... 9-C-3 

Table 9-C.2.8 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Room DHE (High Growth) ................................................... 9-C-4 

Table 9-C.2.9 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Hearth DHE (High Growth) .................................................. 9-C-4 

Table 9-C.2.10 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas-Fired Pool Heaters (High Growth)........................................ 9-C-4 

Table 9-C.2.11 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas-Fired Storage Water Heaters (Low Growth)......................... 9-C-5 

Table 9-C.2.12 Cumulative National Energy Savings and Consumer Net Present 

Value for Electric Storage Water Heaters (Low Growth) ............................ 9-C-5 

Table 9-C.2.13 Cumulative National Energy Savings and Consumer Net Present 

Value for Oil-Fired Storage Water Heaters (Low Growth) .......................... 9-C-5 

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Table 9-C.2.14 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas-Fired Instantaneous Storage Water Heater (Low 

Growth)......................................................................................................... 9-C-6 

Table 9-C.2.15 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Wall Fan DHE (Low Growth)............................................... 9-C-6 

Table 9-C.2.16 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Wall Gravity DHE (Low Growth)......................................... 9-C-6 

Table 9-C.2.17 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Floor DHE (Low Growth)..................................................... 9-C-7 

Table 9-C.2.18 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Room DHE (Low Growth).................................................... 9-C-7 

Table 9-C.2.19 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Hearth DHE (Low Growth)................................................... 9-C-7 

Table 9-C.2.20 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas-Fired Pool Heaters (Low Growth)......................................... 9-C-8
 

LIST OF FIGURES 

Figure 9-C.3.1 Gas-Fired Storage Water Heater Energy Price Scenarios (NES) ................. 9-C-8 

Figure 9-C.3.2 Electric Storage Water Heater Energy Price Scenarios (NES)..................... 9-C-9 

Figure 9-C.3.3 Oil-Fired Storage Water Heater Energy Price Scenarios (NES) .................. 9-C-9 

Figure 9-C.3.4 Gas-Fired Instantaneous Storage Water Heater Energy Price 

Scenarios (NES).......................................................................................... 9-C-10
 

Figure 9-C.3.5 Gas Wall Fan DHE Energy Price Scenarios (NES).................................... 9-C-10
 

Figure 9-C.3.6 Gas Wall Gravity DHE Energy Price Scenarios (NES).............................. 9-C-11
 

Figure 9-C.3.7 Gas Floor DHE Energy Price Scenarios (NES).......................................... 9-C-11
 

Figure 9-C.3.8 Gas Room DHE Energy Price Scenarios (NES)......................................... 9-C-12
 

Figure 9-C.3.9 Gas Hearth DHE Energy Price Scenarios (NES)........................................ 9-C-12
 

Figure 9-C.3.10 Gas-Fired Pool Heater Energy Price Scenarios (NES)............................... 9-C-13
 

Figure 9-C.3.11 Gas-Fired Storage Water Heater Energy Price Scenarios (NPV)............... 9-C-13
 

Figure 9-C.3.12 Electric Storage Water Heater Energy Price Scenarios (NPV) .................. 9-C-14
 

Figure 9-C.3.13 Oil-Fired Storage Water Heater Energy Price Scenarios (NPV) ................ 9-C-14
 

Figure 9-C.3.14 Gas-Fired Instantaneous Storage Water Heater Energy Price
 

Scenarios (NPV) ......................................................................................... 9-C-15
 

Figure 9-C.3.15 Gas Wall Fan DHE Energy Price Scenarios (NPV) ................................... 9-C-15
 

Figure 9-C.3.16 Gas Wall Gravity DHE Energy Price Scenarios (NPV) ............................. 9-C-16
 

Figure 9-C.3.17 Gas Floor DHE Energy Price Scenarios (NPV) ......................................... 9-C-16
 

Figure 9-C.3.18 Gas Room DHE Energy Price Scenarios (NPV) ........................................ 9-C-17
 

Figure 9-C.3.19 Gas Hearth DHE Energy Price Scenarios (NPV) ....................................... 9-C-17
 

Figure 9-C.3.20 Gas-Fired Pool Heater Energy Price Scenarios (NPV)............................... 9-C-18
 

9-C-ii
 

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APPENDIX 9-C. NATIONAL ENERGY SAVINGS AND NET PRESENT VALUE
 

USING ALTERNATIVE ENERGY PRICE SCENARIOS 

9-C.1 INTRODUCTION 

This appendix presents national energy savings (NES) and net present value 

(NPV) results for alternative economic scenarios (for water heaters, direct heating 

equipment and pool heaters), and alternative energy price scenarios for all product 

classes. DOE explained the calculations of NES and NPV using the reference installation 

costs and the default energy price forecast in chapter 10, National Impact Analysis. 

9-C.2 RESULTS USING ALTERNATIVE ENERGY PRICE SCENARIOS 

For each product class, DOE calculated NES and NPV using energy price 

scenarios from the High and Low Economic Growth cases. The NES results are the same 

in each energy price scenario. As one would expect, the NPV is most favorable using 

prices in the High Growth scenario, and least favorable using prices in the Low Growth 

scenario. 

9-C.2.1 NES/NPV Results Using High Economic Growth Scenario 

Table 9-C.2.1	 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas-Fired Storage Water Heaters (High Growth) 

Trial Efficiency NES NPV (billion 2008$) 

Standard 

Level 

(TSL) 

Level (EF) (Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 0.61 0.22 3.11 8.07 

2 0.63 0.34 3.26 9.63 

3 0.63 0.34 3.26 9.63 

4 0.63 0.34 3.26 9.63 

5 0.63 0.39 3.35 10.26 

6 0.63 0.34 3.26 9.63 

7 0.80 1.40 -1.16 12.02 

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Table 9-C.2.2 Cumulative National Energy Savings and Consumer Net Present 

Value for Electric Storage Water Heaters (High Growth) 

Trial Efficiency NES NPV (billion 2008$) 

Standard 

Level 

(TSL) 

Level (EF) (Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 0.92 0.10 0.79 2.42 

2 0.93 0.13 1.16 3.49 

3 0.94 0.24 1.54 5.27 

4 0.95 0.33 1.86 6.72 

5 1.05 0.60 3.87 12.99 

6 2.00 2.48 7.09 36.64 

7 2.20 2.90 10.65 47.47 

Table 9-C.2.3 Cumulative National Energy Savings and Consumer Net Present 

Value for Oil-Fired Storage Water Heater (High Growth) 

Trial Efficiency NES NPV (billion 2008$) 

Standard 

Level 

(TSL) 

Level (EF) (Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 0.58 0.002 0.05 0.12 

2 0.60 0.003 0.09 0.21 

3 0.62 0.004 0.12 0.28 

4 0.62 0.004 0.12 0.28 

5 0.62 0.004 0.12 0.28 

6 0.62 0.004 0.12 0.28 

7 0.68 0.007 0.20 0.48 

Table 9-C.2.4	 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas-Fired Instantaneous Storage Water Heaters (High 

Growth) 

Trial Efficiency NES NPV (billion 2008$) 

Standard 

Level 

(TSL) 

Level (EF) (Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 0.82 0.019 0.01 0.33 

2 0.82 0.019 0.01 0.33 

3 0.82 0.019 0.01 0.33 

4 0.82 0.019 0.01 0.33 

5 0.82 0.019 0.01 0.33 

6 0.82 0.019 0.01 0.33 

7 0.95 0.212 -5.09 -6.01 

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Table 9-C.2.5 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Wall Fan DHE (High Growth) 

Trial Efficiency NES NPV (billion 2008 $) 

Standard 

Level 

(TSL) 

Level 

(AFUE) 

(Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 75% 0.007 0.03 0.07 

2 76% 0.009 0.04 0.09 

3 77% 0.013 0.04 0.11 

4 80% 0.024 0.05 0.15 

5 75% 0.007 0.03 0.07 

6 80% 0.024 0.05 0.15 

Table 9-C.2.6 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Wall Gravity DHE (High Growth) 

Trial Efficiency NES NPV (billion 2008 $) 

Standard 

Level 

(TSL) 

Level 

(AFUE) 

(Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 66% 0.008 0.03 0.07 

2 68% 0.02 0.09 0.23 

3 71% 0.06 0.21 0.54 

4 71% 0.06 0.21 0.54 

5 72% 0.10 0.08 0.41 

6 72% 0.10 0.08 0.41 

Table 9-C.2.7 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Floor DHE (High Growth) 

Trial 

Standard 

Efficiency 

Level 

NES 

(Quads) 

NPV (billion 2008 $) 

Level 

(TSL) 

(AFUE) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 58% 0.0001 0.0001 0.0003 

2 58% 0.0001 0.0001 0.0003 

3 58% 0.0001 0.0001 0.0003 

4 58% 0.0001 0.0001 0.0003 

5 58% 0.0001 0.0001 0.0003 

6 58% 0.0001 0.0001 0.0003 

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Table 9-C.2.8 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Room DHE (High Growth) 

Trial Efficiency NES NPV (billion 2008 $) 

Standard 

Level 

(TSL) 

Level 

(AFUE) 

(Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 66% 0.002 0.01 0.02 

2 67% 0.004 0.02 0.05 

3 68% 0.006 0.03 0.08 

4 68% 0.006 0.03 0.08 

5 83% 0.03 0.15 0.37 

6 83% 0.03 0.15 0.37 

Table 9-C.2.9 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Hearth DHE (High Growth) 

Trial Efficiency NES NPV (billion 2008 $) 

Standard 

Level 

(TSL) 

Level 

(AFUE) 

(Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 67% 0.136 0.67 1.58 

2 67% 0.136 0.67 1.58 

3 67% 0.136 0.67 1.58 

4 72% 0.304 -1.10 -0.92 

5 72% 0.304 -1.10 -0.92 

6 93% 0.931 -3.59 -3.06 

Table 9-C.2.10 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas-Fired Pool Heaters (High Growth) 

Trial Efficiency NES NPV (billion 2008 $) 

Standard 

Level 

(TSL) 

Level 

(TE) 

(Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 81% 0.02 0.08 0.17 

2 82% 0.03 0.08 0.19 

3 83% 0.08 0.15 0.43 

4 84% 0.10 0.05 0.29 

5 86% 0.13 -1.24 -1.92 

6 95 0.28 -2.88 -4.40 

9-C-4
 

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9-C.2.2 NES/NPV Results Using Low Economic Growth Scenario 

Table 9-C.2.11	 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas-Fired Storage Water Heaters (Low Growth) 

Trial Efficiency NES NPV (billion 2008$) 

Standard 

Level 

(TSL) 

Level (EF) (Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 0.61 0.20 2.77 7.09 

2 0.63 0.31 2.91 8.46 

3 0.63 0.31 2.91 8.46 

4 0.63 0.31 2.91 8.46 

5 0.63 0.35 2.99 9.02 

6 0.63 0.31 2.91 8.46 

7 0.80 1.26 -1.05 10.53 

Table 9-C.2.12 Cumulative National Energy Savings and Consumer Net Present 

Value for Electric Storage Water Heaters (Low Growth) 

Trial Efficiency NES NPV (billion 2008$) 

Standard 

Level 

(TSL) 

Level (EF) (Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 0.92 0.09 0.60 1.96 

2 0.93 0.12 0.89 2.83 

3 0.94 0.22 1.11 4.19 

4 0.95 0.30 1.30 5.30 

5 1.05 0.54 2.81 10.32 

6 2.00 2.24 3.30 27.00 

7 2.20 2.63 6.28 36.25 

Table 9-C.2.13 Cumulative National Energy Savings and Consumer Net Present 

Value for Oil-Fired Storage Water Heaters (Low Growth) 

Trial Efficiency NES NPV (billion 2008$) 

Standard 

Level 

(TSL) 

Level (EF) (Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 0.58 0.002 0.05 0.12 

2 0.60 0.003 0.08 0.20 

3 0.62 0.004 0.11 0.27 

4 0.62 0.004 0.11 0.27 

5 0.62 0.004 0.11 0.27 

6 0.62 0.004 0.11 0.27 

7 0.68 0.007 0.18 0.46 

9-C-5
 

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Table 9-C.2.14	 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas-Fired Instantaneous Storage Water Heater (Low 

Growth) 

Trial Efficiency NES NPV (billion 2008$) 

Standard 

Level 

(TSL) 

Level (EF) (Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 0.82 0.017 0.00 0.28 

2 0.82 0.017 0.00 0.28 

3 0.82 0.017 0.00 0.28 

4 0.82 0.017 0.00 0.28 

5 0.82 0.017 0.00 0.28 

6 0.82 0.017 0.00 0.28 

7 0.95 0.192 -4.58 -5.37 

Table 9-C.2.15 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Wall Fan DHE (Low Growth) 

Trial Efficiency NES NPV (billion 2008 $) 

Standard 

Level 

(TSL) 

Level 

(AFUE) 

(Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 75% 0.007 0.03 0.07 

2 76% 0.009 0.03 0.08 

3 77% 0.01 0.04 0.10 

4 80% 0.02 0.04 0.12 

5 75% 0.007 0.03 0.07 

6 80% 0.02 0.04 0.12 

Table 9-C.2.16 Cumulative National Energy Savings and Consumer Net Present
 

Value for Gas Wall Gravity DHE (Low Growth)
 

Trial Efficiency NES NPV (billion 2008 $) 

Standard 

Level 

(TSL) 

Level 

(AFUE) 

(Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 66% 0.008 0.02 0.06 

2 68% 0.02 0.08 0.21 

3 71% 0.06 0.19 0.49 

4 71% 0.06 0.19 0.49 

5 72% 0.10 0.04 0.32 

6 72% 0.10 0.04 0.32 

9-C-6
 

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Table 9-C.2.17 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Floor DHE (Low Growth) 

Trial Efficiency NES NPV (billion 2008 $) 

Standard 

Level 

(TSL) 

Level 

(AFUE) 

(Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 58% 0.0001 0.0001 0.0003 

2 58% 0.0001 0.0001 0.0003 

3 58% 0.0001 0.0001 0.0003 

4 58% 0.0001 0.0001 0.0003 

5 58% 0.0001 0.0001 0.0003 

6 58% 0.0001 0.0001 0.0003 

Table 9-C.2.18 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Room DHE (Low Growth) 

Trial Efficiency NES NPV (billion 2008 $) 

Standard 

Level 

(TSL) 

Level 

(AFUE) 

(Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 66% 0.002 0.01 0.02 

2 67% 0.004 0.02 0.05 

3 68% 0.006 0.03 0.07 

4 68% 0.006 0.03 0.07 

5 83% 0.03 0.13 0.33 

6 83% 0.03 0.13 0.33 

Table 9-C.2.19 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas Hearth DHE (Low Growth) 

Trial Efficiency NES NPV (billion 2008 $) 

Standard 

Level 

(TSL) 

Level 

(AFUE) 

(Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 67% 0.136 0.60 1.43 

2 67% 0.136 0.60 1.43 

3 67% 0.136 0.60 1.43 

4 72% 0.304 -1.25 -1.26 

5 72% 0.304 -1.25 -1.26 

6 93% 0.931 -4.05 -4.10 

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Table 9-C.2.20 Cumulative National Energy Savings and Consumer Net Present 

Value for Gas-Fired Pool Heaters (Low Growth) 

Trial Efficiency NES NPV (billion 2008 $) 

Standard 

Level 

(TSL) 

Level (TE) (Quads) 7% 

Discount 

Rate 

3% 

Discount 

Rate 

1 81% 0.02 0.07 0.15 

2 82% 0.03 0.07 0.017 

3 83% 0.08 0.12 0.36 

4 84% 0.10 0.01 0.20 

5 86% 0.13 -1.30 -2.05 

6 95% 0.28 -3.01 -4.68 

9-C.3	 RESULTS USING ALTERNATIVE ENERGY PRICE SCENARIOS 

COMPARISON 

The following figures graphically display the NES and 7 percent NPV for all 

product classes under the low growth, the reference case, and the high growth energy 

price scenarios. 

9-C.3.1 National Energy Savings (NES) 

0.0 

1.0 

2.0 

3.0 

4.0 

5.0 

6.0 

TSL 1 TSL 2 TSL 3 TSL 4 TSL 5 TSL 6 TSL 7 

Source Savings (Quads)

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.1 Gas-Fired Storage Water Heater Energy Price Scenarios 

(NES) 

9-C-8
 

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0.0 

2.0 

4.0 

6.0 

8.0 

10.0 

12.0 

TSL 1 TSL 2 TSL 3 TSL 4 TSL 5 TSL 6 TSL 7 

Source Savings (Quads)

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.2 Electric Storage Water Heater Energy Price Scenarios (NES)
 

0.000 

0.005 

0.010 

0.015 

0.020 

0.025 

0.030 

TSL 1 TSL 2 TSL 3 TSL 4 TSL 5 TSL 6 TSL 7 

Source Savings (Quads)

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.3 Oil-Fired Storage Water Heater Energy Price Scenarios (NES)
 

9-C-9
 

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0.0 

0.1 

0.2 

0.3 

0.4 

0.5 

0.6 

0.7 

0.8 

0.9 

1.0 

TSL 1 TSL 2 TSL 3 TSL 4 TSL 5 TSL 6 TSL 7 

Source Savings (Quads)

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.4 Gas-Fired Instantaneous Storage Water Heater Energy Price 

Scenarios (NES) 

0 

0.005 

0.01 

0.015 

0.02 

0.025 

1 2 3 4 5 6 

TSL 

Quads 

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.5 Gas Wall Fan DHE Energy Price Scenarios (NES)
 

9-C-10
 

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0 

0.02 

0.04 

0.06 

0.08 

0.1 

0.12 

1 2 3 4 5 6 

TSL 

Quads 

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.6 Gas Wall Gravity DHE Energy Price Scenarios (NES)
 

0 

0.00002 

0.00004 

0.00006 

0.00008 

0.0001 

0.00012 

1 2 3 4 5 6 

TSL 

Quads

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.7 Gas Floor DHE Energy Price Scenarios (NES)
 

9-C-11
 

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0 

0.005 

0.01 

0.015 

0.02 

0.025 

0.03 

0.035 

1 2 3 4 5 6 

TSL 

Quads 

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.8 Gas Room DHE Energy Price Scenarios (NES)
 

0 

0.1 

0.2 

0.3 

0.4 

0.5 

0.6 

0.7 

0.8 

0.9 

1 

1 2 3 4 5 6 

TSL 

Quads 

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.9 Gas Hearth DHE Energy Price Scenarios (NES)
 

9-C-12
 

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0 

0.05 

0.1 

0.15 

0.2 

0.25 

0.3 

1 2 3 4 5 6 

TSL 

Quads 

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.10 Gas-Fired Pool Heater Energy Price Scenarios (NES) 

9-C.3.2 Net Present Values (NPV)
 

-1.5 

-1.0 

-0.5 

0.0 

0.5 

1.0 

1.5 

2.0 

2.5 

3.0 

3.5 

4.0 

TSL 1 TSL 2 TSL 3 TSL 4 TSL 5 TSL 6 TSL 7 

NPV (Billion 2008$) 

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.11 Gas-Fired Storage Water Heater Energy Price Scenarios 

(NPV) 

9-C-13
 

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0.0 

2.0 

4.0 

6.0 

8.0 

10.0 

12.0 

TSL 1 TSL 2 TSL 3 TSL 4 TSL 5 TSL 6 TSL 7 

NPV (Billion 2008$) 

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.12 Electric Storage Water Heater Energy Price Scenarios (NPV)
 

0.000 

0.050 

0.100 

0.150 

0.200 

0.250 

TSL 1 TSL 2 TSL 3 TSL 4 TSL 5 TSL 6 TSL 7 

NPV (Billion 2008$) 

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.13 Oil-Fired Storage Water Heater Energy Price Scenarios (NPV)
 

9-C-14
 

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-6.0 

-5.0 

-4.0 

-3.0 

-2.0 

-1.0 

0.0 

1.0 

TSL 1 TSL 2 TSL 3 TSL 4 TSL 5 TSL 6 TSL 7 

NPV (Billion 2008$) 

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.14 Gas-Fired Instantaneous Storage Water Heater Energy Price 

Scenarios (NPV) 

0 

0.01 

0.02 

0.03 

0.04 

0.05 

0.06 

1 2 3 4 5 6 

TSL 

NPV (billion 2008 $) 

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.15 Gas Wall Fan DHE Energy Price Scenarios (NPV)
 

9-C-15
 

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0 

0.05 

0.1 

0.15 

0.2 

0.25 

1 2 3 4 5 6 

TSL 

NPV (billion 2008 $) 

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.16 Gas Wall Gravity DHE Energy Price Scenarios (NPV)
 

0 

0.00002 

0.00004 

0.00006 

0.00008 

0.0001 

0.00012 

1 2 3 4 5 6 

TSL 

NPV (billion 2008 $)

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.17 Gas Floor DHE Energy Price Scenarios (NPV)
 

9-C-16
 

EE-2006-STD-0129 COMMENT 56.10
 

 

0 

0.02 

0.04 

0.06 

0.08 

0.1 

0.12 

0.14 

0.16 

1 2 3 4 5 6 

TSL 

NPV (billion 2008 $) 

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.18 Gas Room DHE Energy Price Scenarios (NPV)
 

-5 

-4 

-3 

-2 

-1 

0 

1 

1 2 3 4 5 6 

TSL 

NPV (billion 2008 $)

High Growth 

Low Growth 

Reference Case 

Figure 9-C.3.19 Gas Hearth DHE Energy Price Scenarios (NPV)
 

9-C-17
 

EE-2006-STD-0129 COMMENT 56.10
 

NPV (billion 2008 $)

0.5 

0 

-0.5 

-1 

-1.5 

-2 

-2.5 

-3 

-3.5 

1 2 3 4 5 6 

High Growth 

Low Growth 

Reference Case 

TSL 

Figure 9-C.3.20 Gas-Fired Pool Heater Energy Price Scenarios (NPV)
 

9-C-18
 

EE-2006-STD-0129 COMMENT 56.10