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

Natural Gas-Powered Bus Rapid Transit Service Proves a Success in Colorado

Photo of a blue bus on a snowy mountain road.

Learn about the Roaring Fork Transit Authority's experience evaluating and implementing 22 CNG buses in one of the most severe regions in the country.

[More]

December 22, 2015


Renewable Natural Gas: Repurposing Waste to Fuel Vehicles

Photo of a garbage hauler in a dump.

Learn about ways to turn renewable resources into natural gas to fuel vehicles.


[More]

November 19, 2015


Clean Cities TV Hits Big Viewer Milestone

Image is a frame taken from a YouTube Clean Cities video showing alternative-fuel vehicles and the YouTube logo.

Videos about alternative-fuel transportation topics reach a new record of 100,000 views.

[More]

July 24, 2015


CNG and Fleets: New Publication Builds a Case

An image of the cover of the CNG business case publication.

A new report details how to determine the financial soundness of implementing compressed natural gas for fleets.

[More]

April 6, 2015


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.

[More]

October 7, 2014


Plugging in to Cut Petroleum Use

Photo of electric vehicles charging

Clean Cities Top 20 Facts


#16 Clean Cities has helped put 20,000 PEVs on the road

[More]

November 1, 2013