Calpine adds 158 MW to Deepwater power plant project in New Jersey

Calpine Mid-Atlantic Development proposed a 158 MW upgrade to its prior queue position W3-175 resulting in a 529 MW power plant, according to a PJM Interconnection.

The natural gas-fueled combined cycle facility is arranged in a one combustion turbine/one steam turbine generator configuration. The project is to be located at Calpine’s existing Deepwater Energy Center in Pennsville, Salem County, New Jersey.

PJM studied new project #AA1-108 as a 158 MW injection into the Atlantic City Electric system at the Churchtown 230 kV substation and evaluated it for compliance with reliability criteria for summer peak conditions in 2018.

At Calpine’s request, PJM used capacity interconnection rights from the deactivated Deepwater Units 1 and 6. The planned in-service date is June 1, 2018.

It is assumed that the AA1-108 project will use the attachment facilities and Point of Interconnection created by Calpine’s prior queue project W3-175.

AA1-108 is a 158 MW maximum facility output upgrade to the existing W3-175 1×1 combined cycle gas project. AA1-108 consists of one 330 MW combustion turbine and one 217 MW steam turbine.

The intent of this System Impact Study is to determine a plan, with approximate cost and construction time estimates, to connect the subject generation interconnection project to the PJM network at a location specified by Calpine. It is a mid-point to a PJM queue process that culminates with an interconnection service agreement.

The Federal Energy Regulatory Commission in September 2014 had accepted a filing by PJM of an executed ISA for the 371-MW version (#W3-175) of this project. Under that prior agreement, on or before June 1, 2017, Calpine was to demonstrate commercial operation of these generating units.

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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.

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