Clean Energy and Covanta Open First CNG Fueling Station in Nationwide Partnership to Transition Garbage Truck Fleets to Cleaner

Clean Energy and Covanta Open First CNG Fueling Station in Nationwide 
Partnership to Transition Garbage Truck Fleets to Cleaner Natural Gas 
Senior Government, Business, and Environmental Quality Leaders Mark
Opening at Covanta Essex Resource Recovery Facility in New Jersey 
NEWARK, NJ -- (Marketwired) -- 06/05/13 --  Clean Energy Fuels Corp.
(NASDAQ: CLNE) and Covanta Energy Corporation (NYSE: CVA), a world
leader in sustainable waste management and renewable energy, hosted
opening ceremonies today in Newark, N.J. for the first compressed
natural gas (CNG) fueling station built as part of a nationwide
partnership between the two companies to expand the CNG fueling
infrastructure across the country.  
The new station, built and maintained by Clean Energy onsite at
Covanta's energy-from-waste facility located in Newark, N.J., will
supply CNG fuel to refuse trucks serving communities and businesses
in Northern New Jersey and New York City. CNG fueling, combined with
Covanta's energy-from-waste facility, which processes post-recycled
municipal solid waste into clean, renewable electricity, creates a
compelling economic and environmentally-friendly refuse management
model the two companies plan to replicate across the United States.  
Senior government officials, business executives and community
leaders attended the grand opening ceremonies, which took place at
the Covanta Essex Resource Recovery Facility at 66 Blanchard Street
in Newark's East Ward.  
"Our overriding mission is to set a national standard for urban
transformation -- a goal that includes improving environmental
quality through transitioning to clean energy fuels for city vehicle
fleets," said Newark Mayor Booker. "To this end, we are moving
forward with a major program to replace our existing fleet of
diesel-powered garbage trucks and street sweepers with new
cleaner-operating CNG-fueled trucks. Our new fleet will fuel up here
at the Clean Energy/Covanta natural gas fueling station that
officially opens today." 
"Today we celebrate the first station developed by our partnership
with Covanta that we expect to bring cleaner and cheaper energy to
the Northern New Jersey area," said Andrew J. Littlefair, president
and CEO, Clean Energy. "This partnership is expected to enable more
fleets and customers around the country to take advantage of the
economic benefits of natural gas while reducing their carbon
footprint in the community -- a true win-win."  
Anthony Orlando, president and CEO, Covanta Energy, commented,
"Covanta is proud to partner with Clean Energy and the New Jersey
Clean Cities Coalition in the installation of the new fueling station
at our Energy-from-Waste Facility. CNG is the perfect complement to
our work in converting post-recycled waste into clean electricity.
This new CNG station is an important step in building out necessary
infrastructure to support the transition to modern fleets of garbage
trucks fueled by natural gas and that transition will provide
economic and environmental benefits to the communities we serve." 
Recovering energy from residual waste left over after recycling at
energy-from-waste facilities like Covanta Essex offsets greenhouse
gases and produces much needed renewable energy; reduces landfill use
which preserves open space; protects the environment by employing
state-of-the-art equipment and systems; and maximizes recycling and
the reuse of resources. 
This Clean Energy and Covanta CNG fueling station project is
partially funded by a U.S. Department of Energy Federal Stimulus
Grant through the New Jersey Clean Cities Coalition, a non-profit
organization that works to educate the public about the environmental
benefits of switching to vehicles powered by alternative fuels. 
Natural gas fuel costs up to $1.50 less per gallon than gasoline or
diesel, depending on local market conditions. The use of natural gas
fuel not only reduces operating costs for vehicles, but also reduces
greenhouse gas emissions up to 30% in light-duty vehicles and 23% in
medium to heavy-duty vehicles. The U.S. Department of Energy reports
that 98% of the natural gas consumed in the U.S. is sourced in the
U.S. and Canada, making natural gas a secure North American energy
choice. 
About Covanta Energy 
 Covanta Energy Corporation (NYSE: CVA) is an
internationally recognized owner of large-scale Energy-from-Waste and
renewable energy projects and a recipient of the Energy Innovator
Award from the U.S. Department of Energy's Office of Energy
Efficiency and Renewable Energy. Covanta's 44 Energy-from-Waste
facilities provide communities with an environmentally sound solution
to their solid waste disposal needs by using that municipal solid
waste to generate clean, renewable energy. Annually, Covanta's modern
Energy-from-Waste facilities safely and securely convert 20 million
tons of waste into 9 million megawatt hours of clean, renewable
electricity and approximately 9 billion pounds of steam that are sold
to a variety of industries. For more information, visit
www.covantaenergy.com 
About Clean Energy
 Clean Energy Fuels Corp. (NASDAQ: CLNE) is the
largest provider of natural gas fuel for transportation in North
America. We build and operate compressed natural gas (CNG) and
liquefied natural gas (LNG) fueling stations; manufacture CNG and LNG
equipment and technologies for ourselves and other companies; convert
taxis, vans, pick-up trucks and shuttle buses to natural gas; and
develop renewable natural gas (RNG) production facilities. For more
information, visit www.cleanenergyfuels.com. 
Forward-Looking Statement--
 This news release contains
forward-looking statements within the meaning of Section 27A of the
Securities Act of 1933 and Section 21E of the Securities Exchange Act
of 1934 that involve risks, uncertainties and assumptions, including
statements about the benefits of natural gas relative to gasoline and
diesel fuel and expectations about the future adoption of natural gas
as a vehicle fuel. Actual results and the timing of events could
differ materially from those anticipated in these forward-looking
statements as a result of several factors, including, but not limited
to, the price per gallon of natural gas fuel relative to diesel and
gasoline. The forward-looking statements made herein speak only as of
the date of this press release and, unless otherwise required by law,
the company undertakes no obligation to publicly update such
forward-looking statements to reflect subsequent events or
circumstances. Additionally, the reports and other documents Clean
Energy files with the SEC (available at www.sec.gov) contain risk
factors, which may cause actual results to differ materially from the
forward-looking statements contained in this news release. 
Clean Energy Fuels Media Contact:
Patric Rayburn
Public Relations Manager
562-936-7583
patric.rayburn@cleanenergyfuels.com 
Clean Energy Investor Contact:
Tony Kritzer
Director, Investor Relations
562-936-7120
tkritzer@cleanenergyfuels.com 
Covanta Energy Media Contact:
James Regan
Media Relations Manager
862-345-5216
jregan@covantaenergy.com 
Covanta Energy Investor Contact:
Alan Katz
Vice President, Investor Relations
862-345-5456
IR@covantaenergy.com