The Pennsylvania Department of Environmental Protection said in a notice in the Jan. 30 Pennsylvania Bulletin that it intends to approve an application from Dynegy Fayette II LLC for an Air Quality Plan Approval that would allow physical and operational changes to both combustion gas turbines (CGT) at the Fayette Energy Center located in Masontown Borough, Fayette County.
“Dynegy proposes to replace components of the turbine section and additionally change combustion control logic to increase combustion air flow for each CGT,” said the DEP notice. “Maximum heat input capacity of each CGT will increase as a result of this project along with an increase in electric generating capacity and efficiency. Additional definition is also provided for startup, shutdown and turbine tuning operating scenarios currently excluded from the hourly emission limits. Runback and malfunction event operating scenarios are also defined and added to this exclusion. This project does not result in a significant emission increase and does not trigger nonattainment new source review (‘NNSR’) or prevention of significant deterioration (‘PSD’) requirements.”
Emission limitations for each CGT, with operation of duct burners, will remain unchanged on a short term concentration and mass basis, and 12-month rolling total basis.
The DEP will take comments on its plan to approve this permit for 30 days after Jan. 30. Dynegy Fayette II is a unit of Dynegy (NYSE: DYN).