LS Power permits second, 427-MW phase of West Deptford plant

The first phase of this project was due for operation this spring

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LS Power is altering an air permit for its new West Deptford Energy Station in New Jersey to allow for construction of the second, 427-MW gas-fired phase of this project.

The New Jersey Department of Environmental Protection is out for comment until May 16 on the air permit change.

The West Deptford Energy Station (WDES) is located in West Deptford Township, Gloucester County, and consists of natural-gas fired combined-cycle turbine power generating facility. The facility is owned by West Deptford Energy Associates Urban Renewal LP, and is operated by West Deptford Energy LLC, with both of those companies owned by LS Power, the DEP noted.

The facility’s current operating permit was approved in December 2013. The original Prevention of Significant Deterioration (PSD) permit was issued in May 2009. This PSD permit modification with a revised acid rain permit application was received in January 2012 to cover construction of the phase II expansion.

This modification would allow the construction and operation of WDES–Phase II, a 427 MW (maximum net output with duct firing) combined-cycle facility with required state-of-the-art air pollution control technology proposed to be operated by West Deptford Energy II LLC. The proposed Phase II expansion will consist of one “F-class” General Electric or Siemens combustion turbine generator (CTG) that will utilize pipeline natural gas only. A heat recovery steam generator (HRSG) downstream of the combustion turbine will recover heat from the exhaust gases to generate steam.

The HRSG will be equipped with a 770 MMBTU/hour (HHV) natural gas-fired duct burner for supplementary firing and the WDES-Phase II expansion will include a steam turbine generator (STG). Supporting ancillary equipment for the Phase II expansion will include a 40 MMBtu/hr (HHV) natural gas fired auxiliary boiler with low NOx burners that will operate on natural gas exclusively for 4,600 hours per year or less, an 8-cell mechanical draft cooling tower, a 1,000 kW emergency diesel generator and a 282 HP emergency diesel fire pump.

West Deptford Energy LLC filed with the Federal Energy Regulatory Commission on Jan. 29 a proposed rate schedule. West Deptford Energy said it leases and will operate an approximately 715 MW (nameplate) natural gas-fired, combined-cycle facility being constructed in West Deptford Township, N.J. The facility is interconnected with the transmission facilities owned by Atlantic City Electric (ACE) and controlled by PJM Interconnection. The facility will begin producing energy and reactive power in March 2014, the company said in that filing.

Attached to the Jan. 29 filing was testimony from Andrew Dera, the Vice President of West Deptford Energy who is responsible for overseeing the engineering and construction of the facility. He said the plant consists of three generating units, with Units 1, 2, and 3 rated at 206 MW, 206 MW, and 304 MW, respectively. Units 1 and 2 are Siemens SGT6-5000F Combustion Turbine Generators while Unit 3 is an Alstom Power STF30C Steam Turbine Generator.

Barry Cassell
About the Author

Barry Cassell

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 26 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.

Barry can be reached at barryc@pennwell.com.

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