An Alabama city is going green … and saving some green at the same time. According to AL.com, Gadsden is converting all of its heavy equipment to run on biodiesel and will net about $100,000 a year in tax credits and fuel costs from the move:

Gadsden began using propane for its city mowers about four years ago. Now the mowing tractors run on a B100 biodiesel fuel made from recycled restaurant and household grease. The city’s police fleet is currently transitioning to flex fuels, which use 85 percent corn-based ethanol. About 80 percent of its diesel fleet will be using the biofuel blend B20, which is a diesel fuel that is 20 percent domestically produced soy.

The city’s supplier is Ira Phillips Inc., a Gadsden-based wholesaler/distributor. The firm supplies the city with both flex-fuel and biodiesel, and installed the tank at a city refueling station. Mayor Sherman Guyton said the tank will mean that city trucks won’t have to “run all over town” to get fuel.

In addition to the monetary benefits, city officials also boast a 15 percent cut in carbon dioxide emissions by using B20. And they point out the increased lubricity of biodiesel keeps the engines running better, longer.