U.S. Department of Energy Energy Efficiency and Renewable Energy
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Propane-Powered Buses Cut Costs, Green School Fleets


A photo of an orange school bus with a propane sticker on the back.


A new case study highlights the benefits and challenges of deploying propane in buses.


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October 7, 2014


Be Prepared with Alternative Fuels

A close-up photo of a compressed natural gas truck with a white Clean Cities sticker refueling at a CNG station.

During National Preparedness Month, be ready for the worst situation, even if you’re hoping for the best.

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September 26, 2014


EPAct State and Alternative Fuel Provider Credit Allocations Update

A photo of a silver car speeding past a sign that says "NREL".

Learn about new credit allocations under DOE's Alt Fuel Transportation Program.

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September 18, 2014


Filling Up a CNG Vehicle Tank

A graphic of a cylindrical purple tank with red dots inside to represent natural gas in a CNG vehicle tank.

See how variables such as temperature and fill rate affect how a CNG vehicle's tank fills with gas.

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September 11, 2014


AFDC Station Locator Fuel-Specific Fields

This photo shows a research engineer with the National Renewable Energy Laboratory as he plugs in a Plug-In Hybrid Electric Vehicle to run a voltage test.

Learn more about fuel-specific information available through the AFDC Station Locator website.

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August 20, 2014


AFDC Enhancement Makes Finding Applicable Laws and Incentives Easier

A graphic of the map of the United States with the state identified by two capital letters. When you click a state on the map, you're taken to a list of incentives, laws, and regulations for that state.

Updated AFDC search capabilities make it easy to find laws and incentives applicable to you, your program, and your stakeholders.

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July 14, 2014