Maps and Data - Efficiency Ratios for Light-Duty All-Electric Vehicles in the United States
Find maps and charts showing transportation data and trends related to alternative fuels and vehicles.
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119 results
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Laws & Incentives
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Natural Gas Laws and Incentives by State
Displays states and their respective law and incentive counts related to the use of natural gas
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Propane Laws and Incentives by State
Displays states and their respective law and incentive counts related to the use of propane
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Renewable Diesel Laws and Incentives by State
Displays states and their respective law and incentive counts related to the use of renewable diesel
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Clean Cities and Communities
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Clean Cities and Communities Coalition Locations
Displays coalition locations and boundaries across the United States Last update April 2024
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Clean Cities and Communities Project Awards and Matching Funds
Trend of competitive project awards and matching funds from 1998 to 2022 Last update February 2024
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Clean Cities and Communities: Vehicles
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Clean Cities and Communities Alternative Fuel Vehicle Inventory
Alternative fuel vehicle inventory reported by Clean Cities and Communities coalitions from 2004 to 2022 Last update February 2024
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Clean Cities and Communities Energy Use Impact by AFV Type
Trend of energy impact by fuels used in alternative fuel vehicles (AFVs) from 2004 to 2022 Last update February 2024
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Clean Cities and Communities: Energy Use Impact
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Clean Cities and Communities Annual Energy Use Impact
Trend of reduced fuel use and increased fuel diversity from 1994 to 2022 Last update February 2024
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Clean Cities and Communities Cumulative Energy Use Impact
Cumulative trend of reduced fuel use and increased fuel diversity from 1994 to 2022 Last update February 2024
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Clean Cities and Communities Energy Use Impact by AFV Type
Trend of energy impact by fuels used in alternative fuel vehicles (AFVs) from 2004 to 2022 Last update February 2024
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Clean Cities and Communities Energy Use Impact by VMT Reduction and FE
Trend of energy impact by fuel economy (FE) improvements and reductions in vehicle miles traveled (VMT) from 2004 to 2022 Last update February 2024
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Clean Cities and Communities Energy Use Impact through Idle Reduction
Trend of energy impact by idle reduction policies and technologies from 2004 to 2022 Last update February 2024
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Regulated Fleets: State & Alt Fuel Providers
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AFV Acquisitions by Regulated Fleets (by Fleet Type)
Trend of State & Alternative Fuel Provider (S&FP) alternative fuel vehicle (AFV) acquisitions by fleet type from 1992 to 2023 Last update June 2024
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AFV Acquisitions by Regulated Fleets (by Fuel Type)
Trend of State & Alternative Fuel Provider (S&FP) alternative fuel vehicle (AFV) acquisitions by fuel type from 1992 to 2023 Last update June 2024
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Annual Vehicle Credits Earned and Used by Regulated Fleets
Trend of State & Alternative Fuel Provider (S&FP) EPAct credits traded and transactions from 1999 to 2023 Last update May 2024
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Biodiesel Purchases by EPAct-Regulated Fleets
Trend of State and Alternative Fuel Provider Biodiesel Purchases from 2000 to 2023 Last update May 2024
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EPAct State & Alternative Fuel Provider Fleet Exemptions
Trend of State & Alternative Fuel Provider (S&FP) exemption requests and vehicles exempted from 1997 to 2023 Last update June 2024
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Vehicle Credits Traded by Regulated Fleets
Trend of State & Alternative Fuel Provider (S&FP) EPAct credits traded and transactions from 1997 to 2023 Last update May 2024
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Regulated Fleets: Federal Fleets
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AFV Requirements, Acquisitions, and Credits for Federal Agencies
Displays EPAct alternative fuel vehicle (AFV) acquisition requirements, total AFV acquisitions, and additional credits toward the acquisition requirements for federal agencies from fiscal years 2000 through 2023 Last update April 2024
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Efficiency Ratios for Light-Duty All-Electric Vehicles in the United States
| Overall (100%) | Subcompact Cars (1%) | Compact Cars (1%) | Midsize Cars (34%) | Large Cars (6%) | Small Station Wagons (10%) | Small SUV (46%) | Standard SUV (3%) | |
| City | 5.099212851798428 | 5.991782186933853 | 2.743058825470195 | 5.325588670132375 | 4.339888117455278 | 4.037401932238999 | 5.491534976714762 | 5.115875890378097 |
| Highway | 3.583078631413607 | 3.542794115251393 | 2.324120758568762 | 3.487990754165535 | 3.059514778214393 | 2.848384095533541 | 3.84308488152914 | 3.715775775863044 |
| Combined | 4.383576627607371 | 4.769860842802609 | 2.556690041994409 | 4.428636769130532 | 3.749203440585296 | 3.457864135650933 | 4.713565019654359 | 4.475865437702964 |
Source: National Renewable Energy Laboratory, Electric Vehicle Efficiency Ratios for Light-Duty Vehicles Registered in the United States. Registration count derived by NREL using Experian Solutions in 2024.
Notes: Chart and description have been changed to reflect Electric Vehicle Efficiency Ratio of 2021 LDV in the United States by Vehicle Class
The Electric Vehicle Efficiency Ratio (EVER) provides a measure of how much more energy efficient (on a mile per gasoline gallon equivalent basis) a BEV is compared to a gasoline internal combustion engine (ICE) vehicle. Excluding vehicles from vehicle size classes without a market available BEV option limits the comparison to more similar vehicles. More detailed comparisons by class provide a more precise efficiency ratio for each class. This does not include light-duty trucks or vans. On-road EVERs are calculated by weighting EVERs by vehicle registrations. Overall, all-electric vehicles are shown to be about 4.4 times more efficient than gasoline ICE vehicles on a combined drive cycle. The efficiency benefit is most pronounced in city driving, where the efficiency benefit reaches 5.1 overall. The overall EVER is most influenced by the midsize car and small sport utility vehicle classes with the highest concentrations of electric vehicle registrations.
To view more details, notes, and acronyms, please download the Excel spreadsheet.
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