The City of Millbrae recently completed a new facility at its Water Pollution Control Plant that will turn inedible kitchen grease from local restaurants into biogas -- generating renewable energy to treat the city's wastewater. The new system, engineered and installed by Chevron Corporation's Energy Solutions unit, includes a grease-receiving station and an expanded cogenerator.

"This is the only wastewater treatment plant in the U.S. to receive and process inedible grease in a self-funding, purpose-built system that successfully addresses so many challenges simultaneously. It's a complete solution that could be adopted in many cities around the country." -- Dick York, Miillbrae Water Pollution Control Plant, superintendent