California City to Use Wastewater Treatment Plant Biogas as Renewable Fuel Source

Sept. 8, 2015
The facility will supply approximately 75% of the wastewater treatment plant's electricity needs

Anaergia Inc. announced that a subsidiary company, Escondido Bioenergy Facility, LLC (EBF), signed a contract with the city of Escondido, Calif., to design, build, own and operate a renewable energy generation facility.

This facility will be powered by biogas produced as a byproduct of wastewater treatment at Escondido’s Hale Avenue Resource Recovery Facility (HARRF).  The HARRF treats about 15 million gal per day of wastewater for the communities of Escondido and Rancho Bernardo. The HARRF generates a significant amount of energy-rich biogas, and it currently flares this gas as a waste product. Escondido will divert this biogas to the EBF facility.

The EBF facility will supply approximately 75% of the HARRF’s electricity needs under the terms of a 20-year power purchase agreement. The facility will also supply 100% of the HARRF’s average heat requirement. The favorable economics from this arrangement are expected to save Escondido up to $10 million over the term of the agreement. It will also reduce the HARRF’s air emissions by approximately 3,300 metric tons each year, which has the same environmental impact as taking 700 passenger cars off the road.

“Using available resources effectively and efficiently for the benefit of the community is a vital part of Escondido’s 'city mission,'" said Sam Abed, mayor of the city of Escondido. "Not only will this important project achieve this, but it will also have a significant positive impact on the environment."

Source: Anaergia Inc.