Texas agency nears permit decision on Rockwood’s up-to-1,127-MW project

The Texas Commission on Environmental Quality is nearing a final permit decision on an October 2014 application by Rockwood Energy Center LLC for a Greenhouse Gas (GHG) Prevention of Significant Deterioration (PSD) Air Quality Permit that would authorize construction of a power plant of up to 1,127 MW in size.

This facility would be located 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.

The TCEQ 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 on soils, vegetation, or visibility, said the commission in a Dec. 10 notice that was posted to its website on Dec. 14. 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.

Rockwood Energy Center (REC) 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). The applicant has proposed six potential turbine models – made by General Electric, Mitsubishi and Siemens – with different duct burner maximum heat input rates for each option. The nominal output of the plant ranges from 748 MW to 1,127 MW, depending on the final turbine selection.

The applicant also proposes an auxiliary boiler (150 MMBtu, HHV) to be operated 4,380 hours per year. Other greenhouse gas-emitting ancillary facilities include a dew point heater (10 MMBtu/hr, HHV), emergency generator, firewater pump, natural gas fugitives, and circuit breakers.

A project contact is: Rockwood Energy Center LLC, Jason Tundermann, Development Director, (303) 755-2358.

The project appears on the website of power developer Lincoln Clean Energy.

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.