Alternative Fuels
The traditional energy fuels used today include petroleum based fuels such as gasoline, fuel oil and diesel fuel including natural gas and wood based fuels. In addition many alternative fuels are being used today. Alternative fuels include biodiesel, electricity, ethanol, hydrogen, methanol, compressed or liquified natural gas, propane, "P-series" fuels, etc.
Source: Dept. of Energy, Energy Efficiency and Renewable Energy
Dept. of Energy, Alternative Fuels Data Center
