An anaerobic digester takes unsold food from Food 4 Less and Ralphs and converts it into 13 million kilowatts of power per year.
http://www.latimes.com/business/la-fi-ralphs-energy-20130516,0,7330815.story
Kroger Co.’s clean-energy production facility in Compton converts food that can’t be sold or donated into energy. Above, bins of food are lined up for a demonstration at the facility. (Christina House, For The Times / May 16, 2013)