Alternative fuels are derived from sources other than petroleum. Most are produced domestically, reducing our dependence on imported oil, and some are derived from renewable sources. Often, they produce less pollution than gasoline or diesel.
- Ethanol is produced domestically from corn and other crops. It produces less greenhouse gas (GHG) emissions than gasoline or diesel.
- Electricity is produced domestically from a variety of sources such as coal, natural gas, nuclear power, and renewables. Powering vehicles with electricity causes no tailpipe emissions, but generating electricity can produce pollutants and greenhouse gases.
- Biodiesel is diesel derived from vegetable oils and animal fats. It usually produces less air pollutants than petroleum-based diesel.
- Natural gas is a fossil fuel that is plentiful in the U.S. It produces less air pollutants and GHGs than gasoline.
- Propane, also called liquefied petroleum gas (LPG), is a domestically abundant fossil fuel. It produces less harmful air pollutants and GHGs than gasoline.
- Hydrogen can be produced domestically from fossil fuels (such as coal), nuclear power, or renewable resources, such as hydropower. Fuel cell vehicles powered by pure hydrogen emit no harmful air pollutants.
Source: U.S. Department of Energy: fueleconomy.gov