ATLANTA (March 28, 2011) – PS Energy Group, Inc. is pumping up the supply of a cleaner, cheaper alternative fuel for fleets and vehicles by working with Clean Energy Fuels Corp., the company founded by Boone Pickens.

Clean Energy has signed a 15-year agreement to develop and operate compressed natural gas (CNG) facilities at PS Energy Group’s metro Atlanta fueling stations or Unattended Fuel Outlets (UFO). Clean Energy will increase dispensing capacity of CNG at the Whitehall Street site in downtown Atlanta and add CNG facilities at the East Point, Lithonia and Tucker, Ga. locations. By fall 2011, fleets and individuals with CNG vehicles will be able to fill up at any time at any of these computerized fueling stations.

“By expanding the availability of compressed natural gas at PS Energy Group’s fueling stations, we encourage individuals and fleets to reduce their petroleum consumption and impact on the environment by switching to cleaner, alternative fuels,” said Livia Whisenhunt, president, CEO and founder of PS Energy Group.

This project is part of the $39.5 million Clean Cities Atlanta Petroleum Reduction Program, a local public/private partnership co-funded by the U.S. Department of Energy’s National Clean Cities Initiative to support clean fuels, vehicles and infrastructure development to improve fuel economy and air quality in metro Atlanta. Clean Cities supports local decisions to reduce petroleum consumption in the transportation sector through the use of alternative fuels, advanced technology vehicles and fuel economy measures.

“Clean Energy is working with PS Energy Group to respond to the growing demand for CNG by fleets powered by clean-burning, natural gas,” said James Harger, chief marketing officer of Clean Energy. Construction is projected to begin in second quarter 2011 at PS Energy Group’s fueling stations.

About PS Energy Group, Inc.
Founded in 1985, PS Energy Group, Inc. ( is a privately-owned, Atlanta-based company that offers business, industry and government a full range of energy and transportation solutions. As one of the nation’s top 38 diversity-owned businesses and the nation’s 3rd largest Hispanic-owned company, PS Energy Group provides transportation fuels, emergency fueling and fleet management services, including etracTM, a telematics solution that helps improve productivity, profitability and the quality of the environment through better asset monitoring and vehicle tracking.

About Clean Energy
Clean Energy (NASDAQ: CLNE) ( is the largest provider of natural gas fuel for transportation in North America and a global leader in the expanding natural gas vehicle market. It has operations in CNG and LNG vehicle fueling, construction and operation of CNG and LNG fueling stations, biomethane production, vehicle conversion and compressor technology. Clean Energy fuels over 21,200 vehicles at 224 strategic locations across the United States and Canada with a broad customer base in the refuse, transit, trucking, shuttle, taxi, airport and municipal fleet markets.

Clean Energy Forward Looking Statements — 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 timing of station improvements and additional station capacity. 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 permitting and construction delays or delays in the manufacturing of critical equipment. The forward-looking statements made herein speak only as of the date of this press release and the company undertakes no obligation to publicly update such forward-looking statements to reflect subsequent events or circumstances.