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California Yellow Cab CNG Taxi Fleet

California Yellow Cab - Fleet Sustainability Overview

Beginning in July 2002, California Yellow Cab embarked on the first green-fleet initiative among taxicab fleets operating in the State of California. Our motivation to do so was based on three factors:

  1. In the wake of 9/11, we felt compelled to do so.
  2. In response to the ever increasing unpredictability of gasoline prices.
  3. To address our comparatively large and growing carbon footprint.

By the end of that summer, we had purchased and deployed fifty, compressed natural-gas (CNG) powered Ford Crown Victoria taxicabs. The instant popularity of those vehicles amongst our drivers –who were suddenly paying half-the-price-of-gasoline for CNG fuel, as well as enjoying lengthened oil change intervals for these clean running taxicabs- proved to be enough motivation for us to pursue adding additional alternative fuel vehicles to our fleet.

In 2006, we doubled our CNG-powered feet to fully one hundred cabs and added a number of Toyota Prius hybrids into the mix as a test.

In 2011, as the Ford Crown Victoria sedan was being phased out of production, California Yellow Cab purchased, converted and deployed an additional 58 new Ford Transit Connect CNG taxicabs. These purpose built cabs not only run on the latest CNG fueling technology, they also use sophisticated flex-fuel 4-cylinder engines instead of the ubiquitous V-8 or V-6 engines found in typical taxis. Now, we not only put many millions fewer pounds of noxious exhaust into Orange County's air, we also do it at 30mpg!

Today, with some 70% of our fleet running CNG or hybrid power, California Yellow Cab continues to lead the way among large cab fleets in southern California.

California Yellow Cab CNG Taxi Fleet

Natural gas is the cleanest choice of fuel available today for this market. Natural gas powered vehicles produce up to 30% fewer greenhouse gas (GHG) emissions1 than comparable gasoline models.2 California Yellow Cab has dramatically reduced the on-road emissions of their fleet by transitioning their fleet from gasoline to CNG. Since 2002, CA Yellow has reduced over 10.7 Million pounds of criteria pollutants & GHG emissions!3

CA Yellow Cab CNG Fleet: Cumulative Criteria Pollutants & GHG Emission Reductions
1, 2 Detailed California-Modified GREET Pathway for California Reformulated Gasoline Blended with Ethanol, California Air Resources Board, January 12, 2009.
3 Emissions reduction calculated using the U.S. Department of Energy Clean Cities Area of Interest 4: Alternative Fuel and Advanced Technology Vehicles Pilot Program Emissions Benefit Tool. Utilizing CA Yellow Cab's fleet data from 2002 to 2012: (2002-2005 54 CNG taxis each traveling 55,000 miles annually) (2006-2011 80 CNG taxis each traveling 56,250 miles annually) (2012 115 CNG taxis each traveling 56,522 miles annually)

CNG Taxis: Annual Emission Reductions

Emissions Reduced: Measured in Pounds Carbon Monoxide (CO) Volatile Organic Compound (VOC) Nitrogen Oxide (NOx) Fine Particulate Matter (PM2.5) Greenhouse Gas (GHG) Total Emission Reductions (Criteria Pollutants & GHG)
54 CNG Taxis 29,507.50 2,515.00 4,491.30 6.50 667,798.70 704,319.00
80 CNG Taxis 44,710.00 3,810.80 6,805.20 9.90 1,011,852.00 1,067,187.90
115 CNG Taxis 64,579.20 5,504.30 9,829.40 14.30 1,461,521.60 1,541,448.80
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