Louisiana agency nears permits for Entergy’s 980-MW St. Charles project

The Louisiana Department of Environmental Quality is out for comments until July 11 on an initial Part 70 (Title V) air operating permit, an initial Prevention of Significant Deterioration (PSD) permit, and an initial Acid Rain permit for Entergy Louisiana LLC‘s St. Charles Power Station project.

The facility site is located at 17420 River Road, Montz, St. Charles Parish.

Entergy Louisiana, a subsidiary of Entergy Corp. (NYSE: ETR), requested authorization to construct and operate the St. Charles Power Station (SCPS). The SCPS will be located within the boundary of the property on which Entergy Louisiana’s existing Little Gypsy Generating Plant is located.

The SCPS will consist of a combined cycle gas turbine (CCGT) unit which will consist of two natural gas-fired gas turbines, each with a heat recovery steam generator unit equipped with duct burners, and one steam generator turbine. The SCPS will have a predicted net nominal output of 980 MW at international standards organization (ISO) conditions with supplemental duct firing.

Ancillary equipment associated with the SCPS will include a cooling tower, a 2,584 horsepower (HP) emergency diesel generator, a 282 HP diesel-fired fire water pump, and a 30,000 gallon pressurized aqueous ammonia (19%) storage tank.

Entergy Louisiana is currently before the Louisiana Public Service Commission for approval of this project, which the utility said is essential to meeting future power generation needs in the Amite South transmission region.

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.