Mayor Gavin Newsom today announced the receipt of a $1 million California Energy Commission (CEC) grant to the San Francisco Public Utilities Commission (SFPUC) to build the City’s first pilot grease-to-biodiesel production facility.
The facility will be sited at the SFPUC’s Oceanside Sewage Treatment Plant, and is considered unique because it will attempt to create three grades of biodiesel from "brown grease", which are pan scrapings and washed oil residue trapped in grease traps/interceptors under a restaurant sink. There are more than 2.5 million gallons of brown grease in the city, compared with 1.5 million gallons of "yellow grease" like fryer oil. Biodiesel from grease is easily created using the cleaner yellow grease, while brown grease is typically discarded at sewage treatment plants. Read more...