U.S. Postal Service Receives Hydrogen Powered Fuel Cell Electric Vehicle from General Motors for Delivering Mail

* USPS in Irvine, Calif., to receive Chevrolet Equinox Fuel Cell Electric vehicle
* GM Continues Signing up Partners for Chevrolet’s Project Driveway

Irvine, Calif.— General Motors Corp. and the U.S. Postal Service are joining forces again to deliver mail using hydrogen-powered fuel cell vehicles.

The two organizations announced today that the U.S. Postal Service becomes the latest entry into Chevrolet’s Project Driveway, the world’s first and largest market test of fuel cell vehicles to date.

Two postal stations – one in Irvine, Calif., and another to be announced – will be using hydrogen-powered Chevrolet Equinox fuel cell electric vehicles to deliver the mail on regular routes six days a week. The U.S. Postal Service immediately will begin using the Equinox in Irvine.

“The Postal Service has been an invaluable partner, and they put our fuel cell vehicles through some tough, daily workouts,” said Mary Beth Stanek, director of energy and environmental policy & commercialization at General Motors. “We are gaining valuable insight on how these vehicles perform in demanding, real-world situations. By participating in Project Driveway, the Postal Service also is demonstrating the need to develop a hydrogen infrastructure to support fueling these vehicles.”

The U.S. Postal Service began driving a GM HydroGen3 fuel cell vehicle in 2004 in the Northern Virginia area and in 2006, a HydroGen3 spent a year delivering mail in Irvine. Both test drive programs ended in 2007. Those programs helped GM learn a lot about how fuel cell vehicles operate under some demanding conditions – learnings that helped in developing the fleet of Equinoxes.

“ We are very encouraged by GM’s fuel cell technology,” said Walter O’Tormey, vice president, Engineering, U.S. Postal Service . “We are looking for a vehicle that operates from a fuel source that reduces—or eliminates—our dependence on petroleum products, that is good for the environment, good for our customers and good for the Postal Service.”

Chevrolet’s Project Driveway is putting more than 100 Equinox fuel cell vehicles in the hands of real customers to help Chevy and GM understand what it will take to bring larger numbers of fuel cell vehicles to customers around the world. Currently, the program has launched in Los Angeles, metropolitan New York City area and Washington, D.C., with further deployments later this year in Europe and Asia.

GM will provide the maintenance, fuel and service of the vehicle. The U.S. Postal Service letter carriers will fuel the vehicle themselves at the University of California at Irvine hydrogen fueling station operated by the National Fuel Cell Research Center. The station is certified for 700 bar fueling and is already being used by other Project Driveway participants.

General Motors Corp. (NYSE: GM), the world’s largest automaker, has been the annual global industry sales leader for 77 years. Founded in 1908, GM today employs about 266,000 people around the world. With global headquarters in Detroit, GM manufactures its cars and trucks in 35 countries. In 2007, nearly 9.37 million GM cars and trucks were sold globally under the following brands: Buick, Cadillac, Chevrolet, GMC, GM Daewoo, Holden, HUMMER, Opel, Pontiac, Saab, Saturn, Vauxhall and Wuling. GM’s OnStar subsidiary is the industry leader in vehicle safety, security and information services. More information on GM can be found at www.gm.com.

An independent federal agency, the U.S. Postal Service is the only delivery service that visits every address in the nation, 146 million homes and businesses, six days a week. It has 37,000 retail locations and relies on the sale of postage, products, and services to pay for operating expenses, not tax dollars. The Postal Service has annual revenues of $75 billion and delivers nearly half the world’s mail. More information can be found at www.usps.gov.

This news release from Clean Energy and General Motors 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. Actual results and the timing of events could differ materially from those anticipated in these forward-looking statements including the growth of the hydrogen fueling industry, the commencement of hydrogen fueling operations at the LAX station, the cost-effectiveness of utilizing natural gas infrastructure to provide hydrogen fueling and the size and impact of the Project Driveway program. The forward-looking statements made herein speak only as of the date of this press release and the companies undertake no obligation to publicly update such forward-looking statements to reflect subsequent events or circumstances.