Hello BESTers,

This article highlights the Water Pollution Control Plant in 
Millbrae, California that generates heat for its facility from 
biogas.  This biogas is available due to kitchen grease provided 
from local restaurants. Interestingly, the project was possible 
because of Chevron Corporation's Energy Solutions unit.

This was found at Renewableenergyworld.com, and is titled "Turning 
Kitchen Grease into Biogas"

http://www.renewableenergyworld.com/rea/news/article/2006/11/turning-kitchen-grease-into-biogas-46585

This EPA.gov page also mentions the Millbrae project, and quite a 
few others, read on for more examples of bioenergy projects:

http://www.epa.gov/region09/waterinfrastructure/technology.html

-Danielle Keeter