PJM Interconnection got April 8 requests for the deactivation as of Nov. 1, 2017, of four units at the Sewaren plant in New Jersey.
A brief description of those requests is in the April 16 update of PJM’s pending power plant deactivation list. The affected units are: Unit 1 (103 MW); Unit 2 (118 MW); Unit 3 (106 MW); and Unit 4 (124 MW). The same notation in the PJM list for all four units says: “Reliability Analysis underway. PSEG contemplating re-use of Capacity Rights for a new generation project.”
As is standard, the PJM list doesn’t explicitly give the name of the power plant operator. PSEG would be a reference to any one of several units of Public Service Enterprise Group (NYSE: PEG) that use some variation of that acronym.
PSEG Fossil LLC has proposed a natural gas-fired generating facility located in Sewaren, New Jersey, said PJM in a March 2015 study on the project. The installed facilities will have a total capability of 568 MW with 509 MW of this output being recognized by PJM as capacity. The proposed in-service date for this project is May 31, 2018. This study does not imply a Public Service Electric & Gas (PSE&G) commitment to this in-service date. This project, under queue No. Z2-089, has claimed 509 MW of Capacity Interconnection Rights (CIRs) from the retiring Sewaren 1, 2, 3, 4 and 6 units, PJM noted. Both PSEG Fossil and PSE&G are subsidiaries of Public Service Enterprise Group.
The New Jersey State Department of Environmental Protection has approved in the last couple of years air permitting that allows at the existing Sewaren facility the construction and operation of a 625-MW facility consisting of two combined cycle combustion turbines (CCCT) with two duct burners and two heat recovery steam generators (HRSGs), a 300-horsepower emergency diesel fire pump and a three-cell mechanical cooling tower. PSEG will shut down the six existing boilers, the eight peaking turbines and the natural gas-fired emergency generator within three months of commencement of operation of any one of the two new combustion turbines.
Public Service Enterprise Group said about peaking unit retirements in its Feb. 26 annual Form 10-K report: “The National Park, Sewaren 6, Mercer 3, Salem 3, Burlington 8 and 11, Bergen 3, Edison 1, 2 and 3 and Essex 10, 11 and 12 peaking units are scheduled to be retired in June 2015. Salem 3 is expected to continue to be used as an emergency backup generator for the Salem nuclear site.”
Sewaren Units 1-4 are gas-fired steam turbine facilities, while Unit 6 is an oil-fired combustion turbine peaker. The GenerationHub database doesn’t show a Unit 5.