Maps and Data - Annual Vehicle Credits Earned and Used by Regulated Fleets
Find maps and charts showing transportation data and trends related to alternative fuels and vehicles.
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114 results
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Vehicles: AFVs and HEVs
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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 2019 Last update January 2021
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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 2019 Last update January 2021
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AFV and HEV Model Offerings, by Manufacturer
Trend of alternative fuel vehicle (AFV) and hybrid electric vehicle (HEV) models produced by manufacturers, 1991-2021 Last update July 2021
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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 2019 Last update January 2021
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Average Range and Efficiency of U.S. Electric Vehicles
Provides driving range and efficiency factors of on-road electric vehicles in the United States in 2020, based on vehicle registration data Last update November 2021
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Biodiesel Purchases by EPAct-Regulated Fleets
Trend of State and Alternative Fuel Provider Biodiesel Purchases from 2000 to 2019 Last update January 2021
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Clean Cities Alternative Fuel Vehicle Inventory
Alternative fuel vehicle inventory reported by Clean Cities coalitions from 2004 to 2020 Last update January 2022
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Clean Cities Energy Use Impact by Alternative Fuel Vehicle Type
Trend of energy impact by fuels used in alternative fuel vehicles from 2004 to 2020 Last update January 2022
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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 2019 Last update January 2021
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Light-Duty AFV, HEV, and Diesel Model Offerings, by Technology/Fuel
Trend of vehicle models incorporating various advanced technologies or alternative fuels, from 1991 through 2020 Last update September 2021
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Light-Duty AFV Registrations
Breakdown of alternative fuel vehicle (AFV) registrations by fuel type Last update June 2021
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TransAtlas
Interactive map displays light-duty vehicle registration counts over time by state and fuel type
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Transit Buses by Fuel Type
Trend of buses powered by various fuels in the United States, 2007-2019 Last update July 2021
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Types of Vehicles by Weight Class
Chart shows typical vehicle types within the Federal Highway Administration (FHWA) vehicle classes Last update June 2012
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U.S. HEV Sales by Model
Trend of sales by hybrid electric vehicle (HEV) model, 1999-2019 Last update January 2020
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U.S. Plug-in Electric Vehicle Sales by Model
Trend of sales by PEV model, 2011-2019 Last update January 2020
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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 2019 Last update January 2021
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Vehicle Weight Classes & Categories
Charts illustrate the vehicle weight classes and categories used by the Federal Highway Administration (FHWA), the U.S. Census Bureau, and the U.S. Environmental Protection Agency (EPA). Last update June 2012
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Vehicles: Fuel Consumption and Efficiency
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Average Annual Fuel Use by Vehicle Type
Comparison of fuel use (per vehicle) among vehicle types Last update February 2020
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Average Annual Vehicle Miles Traveled by Major Vehicle Category
Comparison of miles traveled (per vehicle) among vehicle types Last update February 2020
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Average Fuel Consumption at Increasing Road Grades
Trend of fuel consumption at increasing road grades, for various vehicle types Last update August 2014
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Average Fuel Economy by Major Vehicle Category
Comparison of fuel economy among vehicle types Last update February 2020
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Average Per-Passenger Fuel Economy by Travel Mode
Comparison of per-passenger fuel economy for various modes of transportation Last update May 2021
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Average Range and Efficiency of U.S. Electric Vehicles
Provides driving range and efficiency factors of on-road electric vehicles in the United States in 2020, based on vehicle registration data Last update November 2021
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Clean Cities Energy Use Impact by VMT Reduction and Fuel Economy
Trend of energy impact by fuel economy improvements and reductions in vehicle miles traveled (VMT) from 2004 to 2020 Last update January 2022
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Annual Vehicle Credits Earned and Used by Regulated Fleets
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | |
| Bankable Credits Earned | 2.994 | 4.398 | 2.01 | 2.652 | 2.938 | 2.307 | 2.85 | 3.84 | 4.665 | 7.862 | 5.156 | 5.126 | 8.097 | 7.714 | 9.727 | 9.805 | 10.33 | 9.386 | 8.937 | 7.498 | 8.973 |
| Banked Credits Used | 2.095 | 2.595 | 2.998 | 1.551 | 2.459 | 2.486 | 2.172 | 2.376 | 2.304 | 1.748 | 1.776 | 1.36 | 1.918 | 1.996 | 1.427 | 2.022 | 2.078 | 1.804 | 2.655 | 2.435 | 2.296 |
Source: National Renewable Energy Laboratory's EPAct State and Alternative Fuel Provider Fleet Task
Under the Energy Policy Act of 1992 (EPAct) and subsequent regulations, certain vehicle fleets operated by state agencies or alternative fuel providers are required to acquire alternative fuel vehicles (AFVs) as a fraction of their light-duty vehicle acquisitions. Covered fleets earn credits for acquiring AFVs and non-AFV electric vehicles, and by investing in alternative fuel infrastructure, alternative fuel non-road equipment, or emerging technology. After satisfying their AFV-acquisition requirements, fleets may also earn AFV credits for acquiring medium- or heavy-duty AFVs and/or hybrid electric vehicles (HEVs) that are not AFVs. Fleets may earn credits in excess of their base requirement, and they may bank these credits for use in meeting future requirements or trade them to other fleets. This chart shows bankable credits earned and banked credits used each year.
To view more details, notes, and acronyms, please download the Excel spreadsheet.
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