U.S. Department of Energy Energy Efficiency and Renewable Energy
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Success Stories and Case Studies

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


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


August 9, 2013

Spotlight on Natural Gas

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Clean Cities Top 20 Facts

#6 Nearly 63,000 natural gas vehicles in service


August 2, 2013

Clean Cities Online Tools

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Clean Cities Top 20 Facts

#5 More than a dozen tools help stakeholders deploy alternative fuels and vehicles


July 26, 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


July 19, 2013

Natural Gas Vehicle and Infrastructure Key Terms

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What are the key terms to know when discussing natural gas vehicles (NGVs) and their fueling infrastructure?


July 18, 2013