Southern Power nears permits on 920 MW gas-fired peaker in Texas

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Southern Power is nearing final permit decisions from the Texas Commission on Environmental Quality for the Jackson County Generating Facility, which is a 920 MW, gas-fired peaking project to be located in Jackson County.

The commission posted to its website on Jan. 26 a notice, dated Jan. 22, that Southern Power is seeking a Proposed Air Quality Permit and Prevention of Significant Deterioration Air Quality Permit that would authorize construction of the Jackson County Generating Facility at a property located south of Lundquist Road at the intersection of Texas County Road 710 and Lundquist Road at Ganado in Jackson County. This application was submitted to the TCEQ in July 2014.

The commission's executive director has determined that the emissions of air contaminants from the proposed facility which are subject to PSD review will not violate any state or federal air quality regulations and will not have any significant adverse impact.

All air contaminants have been evaluated, and “best available control technology” will be used for the control of these contaminants. The executive director has completed the technical review of the application and prepared a draft permit which, if approved, would establish the conditions under which the facility must operate.

The project will consist of four natural gas-fired simple-cycle combustion turbines, five fuel gas heaters, and a firewater pump engine. The turbines planned for this project are the Siemens F5 model, each with a nominal maximum gross electric power output of about 230 MW, totaling a nominal 920 MW for the whole project.

The available NOx control technologies for simple-cycle turbines are selective catalytic reduction, dry-low NOx, or ultra-low NOx combustors, water injection, use of clean fuels, and good combustion practices. Southern Power is proposing to use DLN burners to control NOx emissions to 9.0 parts per million volume dry at 15 percent oxygen, on a rolling three-hour average for these simple cycle peaking turbines which will operate 2,500 hours per year at baseload for each turbine.

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