When one thinks of alternative fuels for vehicles, one might think of diesel, ethanol, or even compressed natural gas, but recently vehicles running on propane have entered the market. According to Todd Mouw, vice president of sales and marketing for Roush CleanTech, a manufacturer of engines that run on propane, propane is “… cleaner than gasoline and diesel. We have a lot of it (in the U.S.) and … it’s easy to integrate into a Ford truck or school bus.” In fact, all three major school bus manufacturers in the United States offer propane-powered school buses to school districts.

Today’s market size is the number of propane-powered vehicles on the road. In comparison, we also include the number of vehicles on the road powered by compressed natural gas.

Geographic reference: United States
Year: 2016
Market size: More than 143,000 propane-powered vehicles
Market size: Approximately 153,000 compressed natural gas powered vehicles
Source: Snavely, Brent, “Alternative-Fuel Buses Carry Roush,” Lansing State Journal, January 8, 2017, page 18A
Original source: Roush CleanTech and Natural Gas Vehicles for America