LOS ANGELES, CA - JUNE 26: A stretched limousine is parked between gas pumps and a hydrogen fuel pump on the opening day of first public hydrogen refueling station in California on June 26, 2008 in Los Angeles, California. The Shell hydrogen station, located at a Shell gas station, is part of a joint effort between General Motors and Shell Hydrogen under the US Department of Energy's Hydrogen Vehicle and Infrastructure Demonstration and Validation Project (DOE Learning Demo) to deploy fuel cell electric vehicles and install hydrogen stations in Southern California, Washington, DC and the New York City metropolitan area.