FlexEnergy to build landfill-gas-to-energy plant in California

By Anna Austin | January 05, 2012

FlexEnergy Inc. subsidiary Flex OC Renewables has received permission from California’s Orange County Board of Supervisors to build and operate a landfill-gas-to-power project at the Santiago Canyon Landfill in east Orange County.

The 113-acre landfill, which is located five miles east of the city of Orange, Calif., stopped accepting waste in mid-1996. Since then, it has flared methane.

FlexEnergy’s Flex Powerstation, which combines a modified gas turbine with an adaptation of a proprietary thermal oxidizer, is a modular system that converts methane sources into electricity with low emissions. It has the ability to cleanly and efficiently consume methane gases from 100 percent down to 5 percent or lower, according to the company.

As proposed, the Santiago Canyon project will use several Flex Powerstation FP250 turbines. An assessment of the available landfill gas at the site has suggested that between 1.5 MW and 2 MW of power will be produced, enough to power between approximately 1,500 and 2,000 homes.

Now having the go-ahead from the board of supervisors, Flex OC Renewables will enter the next phase of the project, which includes finalizing the utility interconnect and power purchase agreements, conducting environmental review, and preparing the site for project development, according to FlexEnergy. The project is scheduled for completion in 2012.

Operation of the first commercial Flex Powerstation FP250 system began in November at the U.S. Department of Defense’s Fort Benning, Ga., Army post, where it generates 250 KW of electricity from landfill gas.