The City of Spokane, Wash., has unveiled its first four compressed natural gas (CNG) powered garbage trucks, and plans to have 20 CNG trucks by the end of the year.
The city will convert its entire solid waste collection fleet to CNG over the next seven years, replacing diesel vehicles. Fuel cost savings are expected to be about $1 million a year once the entire fleet is converted, according to the city.
The CNG trucks are also expected to reduce greenhouse gas emissions by 30 percent compared to diesel, and produce 60 to 90 percent less smog-producing pollutants, the city added.
The city will soon open the Spokane Central Service Center, a combined solid waste management and fleet maintenance facility that includes a CNG fueling station for the refuse trucks. The city's vehicle maintenance employees are also receiving training to learn how to maintain and repair the CNG vehicles.