U.S. Department of Energy Energy Efficiency and Renewable Energy
blog header image

Success Stories and Case Studies

Screenshot of a website

Where can I find case studies and other information about fleets that have successfully adopted alternative fuels and advanced vehicles?

[More]

August 16, 2013


Spotlight on Fuel Economy

Chart showing that in general fuel economy decreases as speed increases over 50 mph

Clean Cities Top 20 Facts


#7 Small changes can make a big impact

[More]

August 9, 2013


Spotlight on Natural Gas

Photo of buses

Clean Cities Top 20 Facts


#6 Nearly 63,000 natural gas vehicles in service

[More]

August 2, 2013


Spotlight on Plug-In Vehicles

Chart showing growth in the number of electric vehicle sales

Clean Cities Top 20 Facts


#4 More than 100,000 plug-in vehicles sold in the United States

[More]

July 19, 2013


Spotlight on Ethanol

Chart showing growth in the number of E85 fueling stations

Clean Cities Top 20 Facts


#3 More than 2,600 U.S. fueling stations offer E85

[More]

July 12, 2013