WASTE TO ENERGY Garbage and agricultural, industrial, and food waste can be used to create a variety of biofuels. Biodiesel can be produced from leftover used restaurant fryer oil, or any oil waste product, such as waste from slaughterhouses. It also has the advantage of being a rather simple production process suitable for large or small scale. Small operations like the Vancouver Biodiesel Co-op in British Columbia, serve the local community by picking up waste oil from local restaurants, converting it to biodiesel, and then selling it to local users.