The Texas Commission on Environmental Quality on Dec. 18 issued notice of a planned approval of air permitting for a gas-fired power project of Rockwood Energy Center LLC.
Rockwood Energy Center has applied for issuance of Proposed Air Quality Permit 122003 and Prevention of Significant Deterioration (PSD) Air Quality Permit PSDTX1424, which would authorize construction of a plant at the southwest corner of the intersection of County Road 111 and County Road 116, approximately 5.0 miles northwest of Garwood in Colorado County. This application was submitted to the TCEQ on July 18, 2014.
The applicant proposes to install a power plant operating in combined cycle mode consisting of two turbines each with duct burners, both fired on natural gas, and a heat recovery steam generator (CTG/HRSG). It has proposed six potential turbine models with different duct burner maximum heat input rates for each option. There are three options for different model General Electric (NYSE: GE) turbines, two for Mitsubishi Heavy Industries turbines and one for a Siemens (NYSE: SI) turbine. Nominal power plant output ranges from a low of 748 MW under one of the GE options, up to 915 MW with the Siemens option.
The applicant also proposes an auxiliary boiler (150 MMBtu, HHV) to be operated 4,380 hours per year. Other ancillary facilities include a dew point heater (10 MMBtu/hr, HHV), cooling tower, emergency generator, firewater pump, diesel fuel tanks, ammonia and natural gas fugitives, and minor maintenance activities.