Downsized St. Joseph Energy Center project advances in PJM review process

St. Joseph Energy Center LLC proposes to install PJM Interconnection Project #X2-052, a 675 MW (675 MW Capacity) natural gas-fired facility connecting to American Electric Power’s (NYSE: AEP) Dumont-Olive 345-kV line.

The proposed location of the X2-052 interconnection switching station is about one mile from the Olive 345-kV substation and approximately 14 miles from the Dumont 345-kV substation, said a PJM Facilities Study on the project, dated December 2014. This project was studied in the prior Feasibility Study as a 1,200-MW natural gas facility.

The requested in service date is June 1, 2016. PJM and AEP understand that St. Joseph Energy Center LLC has established a target Commercial Operation Date of Oct. 15, 2016.

Said the study: “Generation Interconnection Request X2-052 is for a 695 MW 2×1 gas facility consisting of 2×230 MW gas combustion turbines and 1×235 MW steam turbine with a [point of interconnection] on the Dumont–Olive 345 kV circuit in the (American Electric Power) AEP network. X2-052 is now at the system impact study phase of PJM’s Generation and Transmission Interconnection Process. This report describes a dynamic simulation analysis of X2-052 as part of the overall system impact study.”

The study added: “PJM contracted Power Systems Consultants (PSC) to carry out this dynamic simulation analysis of X2-052 as part of the overall system impact study. This analysis is effectively a screening study to determine whether the addition of X2-052 will meet the dynamics requirements of the NERC and PJM reliability standards.”

St. Joseph Energy Center LLC in April 2014 won an 18-month extension, to December 2015, to begin construction on this project. The Indiana Department of Environmental Management had in December 2012 issued air permits for the project, including a prevention of significant deterioration permit. The permits had a routine 18-month deadline for the project to go into construction or the permits would lapse.

In February 2014, the developer asked for the 18-month deadline extension, citing delays for the project like reconfiguration of turbine layout design and in working out grid interconnection agreements. The Indiana agency on April 1, 2014, approved the extended deadline.

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.