Leave it to San Francisco to decide that the city is not only going to recycle grease from its restaurants to be used for biodiesel, but that the city will build its own grease-to-biodiesel plant. On Friday San Francisco Mayor Gavin Newsom said that the city had received $1 million from the California Energy Commission to build a pilot grease-to-biodiesel production facility.
The plant will be built on San Francisco Public Utility Commission’s Oceanside Sewage Treatment Plant, and will be able to use “brown grease,” which is that really dirty low-grade grease, of which the city has more than 2.5 million gallons. “Yellow grease” is the cleaner, easier to convert grease, which is more commonly used to transform into biodiesel.
Late last year San Francisco announced that it would launch a program to recycle yellow grease from city restaurants to power city vehicles, like buses and fire trucks. The “brown grease” biodiesel plant should be fully built by December 2008, the city says.