Denver Metro Clean Cities Coalition

The Denver Metro Clean Cities Coalition works with vehicle fleets, fuel providers, community leaders, and other stakeholders to save energy and promote the use of domestic fuels and advanced vehicle technologies in transportation.

Contact Information
Denver city
12650 W 64th Ave, Unit E #216
Arvada, CO 80004
Trowbridge bonnie 2020

Bonnie Trowbridge

Bonnie Trowbridge brings a deep knowledge of the transportation market to her role as Executive Director for the Denver Metro Clean Cities Coalition – from consumer EVs to alternative fuels to heavy-duty manufacturers and fleets, plus a comprehensive understanding of the vehicle incentives arena across the U.S. With over 25 years of experience in business development for nonprofits and corporations, she is focused on achieving breathable air for everyone by advancing the clean transportation industry. Her experience includes a role directing marketing, communications and government relations for Lightning Systems, manufacturer of electric powertrains for medium- and heavy-duty buses and trucks, and program management for CALSTART, a non-profit organization working to commercialize clean and efficient transportation solutions, where she led events such as a California policy summit, industry leader workshops, and utility engagement programs.

25 years

General Stats

  • Designated: September 13, 1993
  • Population: 3,317,605 (based on 2018 Census estimate)
  • Area: 8,328 sq. mi.
  • Boundary: Counties: Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver, Douglas, Eagle, Gilpin, Jefferson, Pitkin, Summit; City of Denver

Alternative Fueling Stations

Including public and private stations

Gas pump
  • Biodiesel (B20 and above): 2
  • Electric (charging outlets): 2,009
  • Ethanol (E85): 28
  • Hydrogen: 1
  • Natural Gas: 14
  • Propane: 24

Energy Use Impact*

Annual Energy Impact

Annual Energy Impact by Alternative Fuel Vehicle Project Type

Emissions Reduced*

Annual Emissions Reduced

Emissions Reduced by Alternative Fuel Vehicle Project Type
*2018 DOE-Verified Metrics

Learn about just some of the projects from Denver Metro Clean Cities Coalition. Visit the Denver Metro Clean Cities Coalition website for more projects and information.

Projects and Case Studies