232-MW simple-cycle turbine being permitted at Texas biomass plant

Nacogdoches Power LLC is nearing a decision by the Texas Commission on Environmental Quality (TCEQ) on its January 2014 application for issuance of an Air Quality Permit and Prevention of Significant Deterioration (PSD) Air Quality Permit that would authorize modification to the Nacogdoches power plant in Nacogdoches County, Texas.

“Nacogdoches Power, LLC will operate the new unit which will be owned by SPC-Southern Power Company,” said the commission in a June 25 notice posted to its website on June 29. The notice is of the commission’s intent to approve this permitting.

Nacogdoches Power (NP) seeks to amend its permit to include the construction of a natural gas-fired simple cycle combustion turbine generator (CTG) within the property of the existing Nacogdoches Power Electric Generating Plant (NPEGP). The new CTG, a Siemens F5 model, will be owned by Southern Power and will be operated as a peaking unit. The CTG will be limited to 2,500 hours of operation per year.

Said the notice: “This permit authorizes one Siemens F5 natural gas-fired combustion turbine generator (CTG) rated at a nominal electric output of approximately 232 MW and operating in simple cycle.”

The NPEGP currently consists of a biomass bubbling fluidized bed (BFB) boiler and ancillary facilities. The BFB has a gross heat input of 1,374 million British thermal units per hour (MMBtu/hr) and is capable of producing about 100 MW. The permit currently covers the BFB boiler, fire water pump engine, emergency generator engine, cooling tower, fuel storage tanks, and all emissions resulting from the material handling. No changes are being made to this equipment with this permit action.

A project contact is: Nacogdoches Power LLC, Ms. Kelli Mccullough, Environmental Engineer, (205) 257-6720.

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.