AltFuelUS

Vehicle alternative fuel locations and mapping directions to those locations. Full United States coverage. A default filter can be set to any state or any category of fuel. A global filter can be set to produce stations within a user-defined radius of the user location. A global filter can be set to produce stations within a user-defined radius of a user-defined coordinate. Standard iOS search capability is available for filtering on the station name or city.
Data for the fuel types of BioDiesel, Compressed Natural Gas, Ethanol(85), Electric, Hydrogen, Liquefied Natural Gas and Liquified Petroleum Gas are included.
Any service location can be mapped by state or by a user-specified radius from the user location.
Full data on the service location is shown as provided by the source. This can include service location name, location, type of fuel, hours, credit cards accepted, fuel-specific hardware and more.
Data is provided by the US Department of Energy.