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Analysis of Corporate Average Fuel Economy (CAFE) Standards for Light Trucks and Increased Alternative Fuel Use

 

Table 1. Summary of Key Results of Four CAFE Cases Compared to the AEO2002
Revised Reference Case (2010, 2020)
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2000 AEO2002 Revised Reference 1 Sensitivity S. 804 S. 804 Advanced Date S. 517
2010
Light Vehicle Consumption (billion gallons) 124.9 154.0 152.4 147.6 146.6 147.4
Net Petroleum Imports (million barrels per day) 10.49 14.30 14.19 13.91 13.83 13.90
World Oil Price (2000 $) 27.72 23.36 23.36 23.14 23.09 23.13
GDP (billion 1996 dollars) 9,224 12,309 12,308 12,292 12,282 12,292
Light Vehicle Carbon Equivalent Emissions (million metric tons) 297.9 366.0 362.1 350.9 348.4 350.3
Average New Car Fuel Economy (miles per gallon) 28.90 29.58 30.82 29.53 29.52 33.44
Average New Light Truck Fuel Economy (miles per gallon) 21.08 22.52 23.25 25.56 26.41 25.05
Average New Car Horsepower 165 202 194 202 202 174
Average New Light Truck Horsepower 2 193 237 235 203 203 215
Average New Car Weight (pounds) 3087 3257 3160 3258 3258 2826
Average New Light Truck Weight (pounds)2 4257 4554 4513 4053 3966 4105
2020
Light Vehicle Consumption (billion gallons) 181.8 176.3 167.1 166.8 159.4
Net Petroleum Imports (million barrels per day) 16.69 16.38 15.86 15.83 15.40
World Oil Price (2000 $) 24.68 24.68 24.26 24.20 24.01
GDP (billion 1996 dollars) 16,530 16,525 16,519 16,527 16,505
Light Vehicle Carbon Equivalent Emissions (million metric tons) 432.1 419.2 397.3 396.6 379.1
Average New Car Fuel Economy (miles per gallon) 29.63 31.79 29.53 29.53 35.84
Average New Light Truck Fuel Economy (miles per gallon) 2 23.18 23.57 26.48 26.47 26.49
Average New Car Horsepower 220 198 220 220 168
Average New Light Truck Horsepower 3 252 249 206 206 206
Average New Car Weight (pounds) 3359 3100 3360 3360 2723
Average New Light Truck Weight (pounds)3 4784 4721 3984 3960 3936

 

Table 2. AEO2002 Revised Reference Case Advanced Technology Attributes Compared
to the AEO2002 Reference Case
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AEO2002 Reference Case AEO2002 Revised Reference Case
Technology Type Efficiency Improvement Incremental Cost (2000 $) Efficiency Improvement Incremental Cost (2000 $)
Advanced drag reduction 6.9% 112 1.5% 70
Engine friction reduction 5.0% 90 3.0% 90
Variable valve timing 8.0% 230 3.0% 140
Accessory improvement 1.0% 30 2.0% 90
Advanced tires 2.0% 32 1.5% 32
Continuously variable Transmission 10.0% 250 6.0% 250
Gasoline direct injection 17.0% 650 5.0% 650
Added Technologies
Electromechanical valve actuation N/A N/A 7.5% 420
Intake valve throttling N/A N/A 4.5% 315
Variable compression ratio N/A N/A 4.0% 320

 

Table 3. Comparison of AEO2002 Reference Case Vehicle Horsepower and Weight to the AEO2002 Revised Reference Case
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AEO2002 Reference Case AEO2002 Revised Reference Case
2000 Horsepower Weight (pounds) Horsepower Weight (pounds)
Car 165 3105 165 3105
Light truck 193 4257 193 4257
2005
Car 191 3230 188 3191
Light truck 218 4410 217 4380
2010
Car 206 3306 202 3257
Light truck 240 4618 236 4554
2015
Car 217 3353 213 3309
Light truck 249 4733 246 4684
2020
Car 223 3390 220 3359
Light truck 253 4812 252 4784

Table 4. AEO2002 Revised Reference Case Light Vehicle Fuel Savings Relative to the 2002 Technology Case and Total Light Vehicle Energy Use (billion gallons)
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Year Light Vehicle Fuel Savings Total AEO2002 Revised Reference Case Light Vehicle Energy Use
Annual Cumulative Annual Cumulative
2004 0.4 0.4 137.1 137.1
2005 0.6 1.0 140.4 277.5
2006 0.8 1.8 143.2 420.7
2007 1.1 2.9 146.3 567.0
2008 1.4 4.3 149.8 716.8
2009 1.8 8.0 153.4 870.2
2010 2.2 8.2 156.9 1027.1

Table 5. Summary of Sensitivity Case Impacts (2005, 2010, 2015, 2020)
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2005 2010 2015 2020
Light Vehicle Energy Use (billion gallons)
AEO2002 Revised Reference Case 139.4 154.0 168.5 181.8
Sensitivity Case 139.2 152.4 164.6 176.3
Percent Change -0.2 -1.0 -2.2 -2.9
Light Vehicle CO 2 Emissions (MMTCe)
AEO2002 Revised Reference Case 331.2 366.0 400.3 432.1
Sensitivity Case 330.7 362.1 391.0 419.2
Percent Change -0.2 -1.1 -2.3 -3.0
Net Petroleum Imports (million barrels per day)
AEO2002 Revised Reference Case 12.58 14.30 15.32 16.69
Sensitivity Case 12.56 14.19 15.15 16.38
Percent Change -0.2 -0.8 -1.1 -1.9
Average New Car Fuel Economy (mpg)
AEO2002 Revised Reference Case 29.50 29.58 29.62 29.63
Sensitivity Case 30.21 30.82 31.74 31.79
Percent Change 2.4 4.2 7.2 7.3
Average New Car Price (thousands of 2000 $)
AEO2002 Revised Reference Case 22.97 23.19 23.37 23.54
Sensitivity Case 22.98 23.22 23.48 23.64
Percent Change 0.1 0.2 0.5 0.4
Average New Car Horsepower
AEO2002 Revised Reference Case 188 202 213 220
Sensitivity Case 187 194 193 198
Percent Change -0.1 -3.9 -9.5 -10.0
Average New Car Weight (pounds)
AEO2002 Revised Reference Case 3191 3257 3309 3359
Sensitivity Case 3152 3160 3093 3100
Percent Change -1.2 -3.0 -6.5 -7.7
Average New Light Truck Fuel Economy (mpg)
AEO2002 Revised Reference Case 21.77 22.52 23.12 23.18
Sensitivity Case 22.19 23.25 23.59 23.57
Percent Change 1.9 3.2 2.0 1.7
Average New Light Truck Price (thousands of 2000 $)
AEO2002 Revised Reference Case 24.94 25.23 25.42 25.60
Sensitivity Case 24.98 25.28 25.44 25.60
Percent Change 0.1 0.2 0.1 0.0
Average New Light Truck Horsepower
AEO2002 Revised Reference Case 217 237 246 252
Sensitivity Case 218 235 243 249
Percent Change 0.5 -0.8 -1.2 -1.2
Average New Light Truck Weight (pounds)
AEO2002 Revised Reference Case 4380 4554 4684 4784
Sensitivity Case 4373 4513 4644 4721
Percent Change -0.2 -0.9 -0.9 -1.3

 

Table 6. Summary of S. 804 Case Impacts (2005, 2010, 2015, 2020)
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2005 2010 2015 2020
Light Vehicle Energy Use (billion gallons)
AEO2002 Revised Reference Case 139.4 154.0 168.5 181.8
S. 804 Case 137.9 147.6 157.3 167.1
Percent Change -1.1 -4.1 -6.4 -7.7
Light Vehicle CO 2 Emissions (MMTCe)
AEO2002 Revised Reference Case 331.2 366.0 400.3 432.1
S. 804 Case 327.7 350.9 374.0 397.3
Percent Change -1.1 -4.1 -6.6 -8.0
Net Petroleum Imports (million barrels per day)
AEO2002 Revised Reference Case 12.58 14.30 15.32 16.69
S. 804 Case 12.49 13.91 14.71 15.86
Percent Change -0.7 -2.7 -4.0 -5.0
Average New Light Truck Fuel Economy (mpg) 1
AEO2002 Revised Reference Case 21.13 21.79 22.30 22.28
S. 804 Case 23.10 25.56 26.74 26.48
Percent Change 9.3 17.3 19.9 18.9
Average New Light Truck Price 2 (thousands of 2000 $)
AEO2002 Revised Reference Case 24.94 25.23 25.42 25.60
S. 804 Case 25.07 25.83 26.47 26.73
Percent Change 0.5 2.4 4.1 4.4
Average New Light Truck Horsepower 2
AEO2002 Revised Reference Case 217 237 246 252
S. 804 Case 211 203 195 206
Percent Change -2.8 -14.3 -22.0 -18.3
Average New Light Truck Weight 2 (pounds)
AEO2002 Revised Reference Case 4380 4554 4684 4784
S. 804 Case 4217 4053 3884 3984
Percent Change -3.7 -11.0 -17.1 -16.7

 

Table 7. Summary of S. 804 Advanced Date Case Impacts (2005, 2010, 2015, 2020)
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2005 2010 2015 2020
Light Vehicle Energy Use (billion gallons)
AEO2002 Revised Reference Case 139.4 154.0 168.5 181.8
S. Advanced Date Case 137.7 146.6 156.2 166.8
Percent Change -1.2 -4.8 -7.0 -7.9
Light Vehicle CO 2 Emissions (MMTCe)
AEO2002 Revised Reference Case 331.2 366.0 400.3 432.1
S. Advanced Date Case 327.2 348.4 371.5 396.6
Percent Change -1.2 -4.8 -7.2 -8.2
Net Petroleum Imports (million barrels per day)
AEO2002 Revised Reference Case 12.58 14.30 15.32 16.69
S. 804 Advanced Date Case 12.47 13.83 14.65 15.83
Percent Change -0.9 -3.3 -4.4 -5.2
Average New Light Truck Fuel Economy (mpg) 1
AEO2002 Revised Reference Case 21.13 21.79 22.30 22.28
S. 804 Advanced Date Case 23.81 26.41 26.61 26.47
Percent Change 12.7 21.2 19.3 18.8
Average New Light Truck Price 2 (thousands of 2000 $)
AEO2002 Revised Reference Case 24.94 25.23 25.42 25.60
S. 804 Advanced Date Case 25.25 26.24 26.52 26.69
Percent Change 1.2 4.0 4.3 4.2
Average New Light Truck Horsepower 2
AEO2002 Revised Reference Case 217 237 246 252
S. 804 Advanced Date Case 209 203 204 206
Percent Change -3.7 -14.3 -17.1 -18.3
Average New Light Truck Weight 2 (pounds)
AEO2002 Revised Reference Case 4380 4554 4684 4784
S. 804 Advanced Date Case 4166 3966 3935 3960
Percent Change -4.9 -12.9 -16.0 -17.2

Table 8. Summary of S. 517 Impacts (2005, 2010, 2015, 2020)
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2005 2010 2015 2020
Light Vehicle Energy Use (billion gallons)
AEO2002 Revised Reference Case 139.4 154.0 168.5 181.8
S. 517 Case 139.4 147.4 153.5 159.4
Percent Change 0.0 -4.2 -8.6 -11.8
Light Vehicle CO 2 Emissions (MMTCe)
AEO2002 Revised Reference Case 331.2 366.0 400.3 432.1
S. 517 Case 331.1 350.3 364.9 379.1
Percent Change 0.0 -4.2 -8.6 -11.8
Net Petroleum Imports (million barrels per day)
AEO2002 Revised Reference Case 12.58 14.30 15.32 16.69
S. 517 Case 12.57 13.90 14.49 15.40
Percent Change -0.1 -2.8 -5.4 -7.7
Average New Car Fuel Economy (mpg)
AEO2002 Revised Reference Case 29.50 29.58 29.62 29.63
S. 517 Case 29.50 33.44 35.54 35.84
Percent Change 0.0 13.0 20.0 21.0
Average New Car Price (thousands of 2000 $)
AEO2002 Revised Reference Case 22.97 23.19 23.37 23.54
S. 517 Case 22.98 23.45 23.91 26.56
Percent Change 0.0 1.1 2.3 2.3
Average New Car Horsepower
AEO2002 Revised Reference Case 188 202 213 220
S. 517 Case 188 174 168 168
Percent Change 0.0 -13.9 -21.1 -23.6
Average New Car Weight (pounds)
AEO2002 Revised Reference Case 3191 3257 3309 3359
S. 517 Case 3191 2826 2719 2723
Percent Change 0.0 -13.2 -17.8 -18.9
Average New Light Truck Fuel Economy (mpg) 1
AEO2002 Revised Reference Case 21.13 21.79 22.30 22.28
S. 517 Case 21.41 25.05 26.26 26.49
Percent Change 1.3 15.0 17.8 15.9
Average New Light Truck Price 2 (thousands of 2000 $)
AEO2002 Revised Reference Case 24.94 25.23 25.42 25.60
S. 517 Case 24.94 25.70 26.33 26.56
Percent Change 0.0 1.9 3.6 3.8
Average New Light Truck Horsepower 2
AEO2002 Revised Reference Case 217 237 246 252
S. 517 Case 217 215 206 206
Percent Change 0.0 -9.3 -16.3 -18.3
Average New Light Truck Weight 2 (pounds)
AEO2002 Revised Reference Case 4380 4554 4684 4784
S. 517 Case 4380 4105 3938 3936
Percent Change 0.0 -9.9 -15.9 -17.7

Table 9. Projected Macroeconomic Impacts of S. 804 (2010-2020)
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Projection 2010 2015 2020
Real Gross Domestic Product
(Billion 1996 Dollars)
AEO 2002 Revised Reference 12309 14399 16530
S. 804 12292 14379 16519
S. 804 Advanced Date 12282 14380 16527
Real Gross Domestic Product
(Percent Change from Revised Reference)
S. 804 -0.14 -0.14 -0.07
S. 804 Advanced Date -0.22 -0.13 -0.02
Real Consumption Expenditures (Billion 1996 Dollars)
AEO 2002 Revised Reference 8255 9547 10999
S. 804 8241 9532 10988
S. 804 Advanced Date 8235 9532 10994
Real Consumption Expenditures (Percent Change from Revised Reference)
S. 804 -0.16 -0.16 -0.10
S. 804 Advanced Date -0.24 -0.16 -0.05
Real Investment Expenditures (Billion 1996 Dollars)
AEO 2002 Revised Reference 2517 3254 3957
S. 804 2515 3254 3962
S. 804 Advanced Date 2512 3255 3961
Real Investment Expenditures (Percent Change from Revised Reference)
S. 804 -0.08 0.01 0.15
S. 804 Advanced Date -0.17 0.05 0.11
Real Trade Balance (Billion 1996 Dollars)
AEO 2002 Revised Reference -296 -256 -347
S. 804 -298 -264 -356
S. 804 Advanced Date -300 -264 -352
Real Trade Balance (Change from Revised Reference)
S. 804 -2.6 -8.6 -8.9
S. 804 Advanced Date -4.3 -8.8 -4.1
Consumer Price Index (Index, 1982-4=100)
AEO 2002 Revised Reference 227.5 263.6 314.1
S. 804 227.3 262.8 312.0
S. 804 Advanced Date 227.4 262.6 311.6
Consumer Price Index (Percent Change from Revised Reference)
S. 804 -0.07 -0.31 -0.68
S. 804 Advanced Date -0.03 -0.39 -0.79
Sales of Light Vehicles (thousands of units)
AEO 2002 Revised Reference 17337 17818 18283
S. 804 17091 17388 17830
S. 804 Advanced Date 16974 17392 17833
Sales of Light Duty Vehicles (Change from Revised Reference)
S. 804 -247 -430 -453
S. 804 Advanced Date -363 -426 -450
Non-agricultural Employment (thousands employed)
AEO 2002 Revised Reference 145283 150401 154698
S. 804 145069 150168 154507
S. 804 Advanced Date 144957 150179 154588
Non-agricultural Employment (Change from Revised Reference)
S. 804 -214 -233 -192
S. 804 Advanced Date -325 -222 -111

Table 10. Projected Macroeconomic Impacts of S. 517 (2010-2020)
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Projection 2010 2015 2020
Real Gross Domestic Product (Billion 1996 Dollars)
AEO 2002 Revised Reference 12309 14399 16530
S. 517 12292 14356 16505
Real Gross Domestic Product (Percent Change from Revised Reference)
S. 517 -0.14 -0.30 -0.15
Real Consumption Expenditures (Billion 1996 Dollars)
AEO 2002 Revised Reference 8255 9547 10999
S. 517 8242 9517 10980
Real Consumption Expenditures (Percent Change from Revised Reference)
S. 517 -0.16 -0.31 -0.18
Real Investment Expenditures (Billion 1996 Dollars)
AEO 2002 Revised Reference 2517 3254 3957
S. 517 2514 3248 3961
Real Investment Expenditures (Percent Change from Revised Reference)
S. 517 -0.11 0.19 0.11
Real Trade Balance (Billion 1996 Dollars)
AEO 2002 Revised Reference -296 -256 -347
S. 517 -298 -269 -363
Real Trade Balance (Change from Revised Reference)
S. 517 -2.7 -13.1 -15.2
Consumer Price Index (Index, 1982-4=100)
AEO 2002 Revised Reference 227.5 263.6 314.1
S. 517 227.5 263.3 312.0
Consumer Price Index (Percent Change from Revised Reference)
S. 517 -0.01 -0.14 -0.68
Sales of Light Vehicles (thousands of units)
AEO 2002 Revised Reference 17337 17818 18283
S. 517 17107 17214 17678
Sales of Light Duty Vehicles (Change from Revised Reference)
S. 517 -230 -604 -604
Non-agricultural Employment (thousands employed)
AEO 2002 Revised Reference 145283 150401 154698
S. 517 145076 149948 154405
Non-agricultural Employment (Change from Revised Reference)
S. 517 -207 -453 -293

Table 11. Present Discounted Values of Changes in GDP and Consumption (Billion 1996 Dollars discounted at 7 Percent from 2003-2020)
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Variable Present Value of Changes % of Total
(2003-2020) (2003-2020)
Real GDP, S. 804 Case -134 -0.11
Real GDP, S. 804 Advanced Date -141 -0.11
Real GDP, S. 517 -170 -0.14
Real Consumption, S. 804 -105 -0.13
Real Consumption, S. 804 Advanced Date -111 -0.13
Real Consumption, S. 517 -123 -0.15

Table 12. Summary of Proposed Alternative Fuels Legislation
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S. 1766 H.R. 4
Section Requirements Section Requirements
811 Requires dual fuel vehicles in Federal fleet to use alternative fuels for 75 percent of fuel by 2005. Includes enclosed 3-wheel electric vehicles as AFVs 205 206 Increases AFVs to 85 percent of Federal fleet purchases by 2006. Includes hybrid vehicles as an AFV Eliminates petroleum fuel consumption in the Federal fleet by the end of FY2009
812 Single passenger AFVs allowed in HOV lanes 151 Single passenger AFVs and hybrid vehicles allowed in HOV lanes
814 Provides grants for demonstration and commercial application of alternative fuel school buses and ultra-low sulfur diesel buses to replace pre-1977 buses and pre-1991 diesel buses 2142 Provides grants for demonstration and commercial application of alternative fuel school buses and ultra-low sulfur diesel buses
815 Establishes cooperative agreements to develop fuel cell power school buses 2143 Establishes cooperative agreements to develop fuel cell power school buses
816 Authorizes $260 million over 2003-2006 for 814 and 815. Specifies maximum of $25 million for fuel cell school buses 2144 Authorizes $300 million over 2002-2006 for 2142 and 2143. Specifies maximum of $25 million for fuel cell school buses

Table 13. Estimated Consumption of Transportation Fuels, 1999
(million gasoline-equivalent gallons)
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Federal Agencies State and Local Agencies Private Total US
Alternative Fuels 5.8 78.0 255.5 339.3
Motor Gasoline 275.9 1,878.8 124,944 127,183


Table 14. Estimated Number of Alternative Fuel Vehicles, 1999
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Dedicated Non-Dedicated Total Flexible Fuel
Federal Agencies 1,731 22,403 24,134 9,141
State and Local Agencies NA NA 77,515 12,201
Total US NA NA 406,841 41,428

Table 15. School Bus Fleets, Selected Data, 1999
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Number (thousand) Energy Use (trillion Btu)
Alternative Fuel School Buses 3.9 NA
Total School Buses 592.0 76.3

Table 16. Summary of Potential Impacts of Proposed Alternative Fuels Legislation
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S. 1766
Section Requirements Potential Impact
811 Requires dual fuel vehicles in Federal fleet to use alternative fuels for 75 percent of fuel by 2005. Includes enclosed 3-wheel electric vehicles as AFVs Increase Federal alternative fuels consumption by 3.8 million gallons (66 percent increase over 1999 consumption of 5.8 million gallons). This reduces Federal fleet gasoline consumption by a corresponding amount, or 1.4 percent of total. The reduction of 3.8 million gallons of gasoline would reduce total U.S. gasoline consumption by 0.003 percent. Not estimated.
812 Single passenger AFVs allowed in HOV lanes Not estimated.
814 Provides grants for demonstration and commercial application of alternative fuel school buses and ultra-low sulfur diesel buses to replace pre-1977 buses and pre-1991 diesel buses Total school bus consumption was about 608 million gallons gasoline equivalent in 1999. Likely to have minimal energy impact due to small number of buses involved.