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Kroger installs clean energy production system powered by food waste

FBR Staff Writer Published 16 May 2013

Supermarket chain Kroger has unveiled a clean energy production system, designed to convert food waste into clean energy to help power its Ralphs/Food 4 Less Compton distribution center.

The conversion system is capable of processing more than 55,000 tons of organic food waste into renewable energy annually and provides power to the 650,000ft² distribution center.

It will also reduce area truck trips by more than 500,000 miles each year. The Kroger Recovery System uses an advanced process to convert the carbon in organic material into a renewable source of methane.

Kroger president and COO Rodney McMullen said that investing in this project is a good business decision for Kroger and, most importantly, an extraordinary opportunity to benefit the environment.

"We want to thank Governor Brown and his team at CalRecycle and CalEPA, the City of Compton, the SCAQMD, and most importantly the team at FEED for making this renewable energy project a reality," McMullen added.

The recovery system utilizes anaerobic digestion, a naturally occurring process, to transform organics and onsite food-processing waste into renewable biogas which is then turned into power for onsite operations.

The process is carried out in an enclosed, oxygen-free environment. The system will provide sufficient renewable biogas to offset more than 20% of the energy demand of the Ralphs/Food 4 Less distribution center.