What is a natural gas vehicle?

Natural gas vehicles (NGVs) have been around for more than 60 years and today there are many NGVs on the market. There are three categories of NGV’s including: dedicated, which only runs on NG; bifuels, which can run on both NG or gasoline; and dual-fuels, which can run on both diesel and NG. Generally speaking, NG is less expensive and more stable than diesel or petroleum making NGV particularly attractive to fleets who consume high amounts of fuel.

What is natural gas?

CNG fueled delivery truckThe majority of natural gas is produced in the United States from other sources such as gas or oil wells. In order to be utilized in a vehicle, natural gas must be stored onboard as either compressed gas or in a liquefied state. These two types of natural gas are known as Compressed Natural Gas (CNG) or Liquefied Natural Gas (LNG). CNG is optimal for use in light, medium and heavy vehicles while LNG is mostly only used in heavy-duty vehicles. Renewable natural gas (RNG) can be produced from renewable sources such as decaying organic material found in livestock manure, landfills, and waste water. Anaerobic digestion and a treatment process can convert these gases into vehicle-grade RNG.

What are the benefits of natural gas?

According to the Department of Energy, national gas currently fuels over 100,000 vehicles in the United States. Natural gas offers many environmental and energy security benefits in comparison to traditional petroleum as a vehicle fuel. It produces significantly lower amounts of emissions compared to gasoline and diesel. It is widely produced within the United States, thereby reducing our dependence on foreign oil.

For more information about natural gas visit: afdc.energy.gov/fuels/natural_gas.html