PJM works on interconnect for 180-MW UGI project in Pennsylvania

UGI Development Co. has proposed a 180-MW, natural gas-fired facility located in Luzerne County, Pa., said a study on the project from PJM Interconnection that is dated November 2015.

The installed facilities will have a total capability of 180 MW with 180 MW of this output being recognized by PJM as capacity. The proposed in-service date for this project is in June 2017. This study does not imply a UGI commitment to this in-service date. The project entered the PJM queue in August 2014.

This project, under PJM queue #AA1-036, will interconnect with the UGI transmission system along the Mountain-Susquehanna 230-kV line. The project would connect to this line with a new radial 230-kV line and a new three breaker 230-kV ring bus. The radial line would extend from the Hunlock Station to the location of the new switching station near the existing double-circuit 230-kV line in Newport Township, Luzerne County. The connection to the transmission system would be completed by looping the Mountain-Susquehanna T10 line into the new station.

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 UGI Development. It is an interim step in a PJM queue process that would ultimately lead to an Interconnection Service Agreement.

The Pennsylvania Department of Environmental Protection said in a notice in the Jan. 24 Pennsylvania Bulletin that it had received and intends to issue a Plan Approval to UGI Development for the installation and operation of equipment at the existing Hunlock power plant site that includes:

  • Two General Electric LM6000 PC-Sprint combustion turbine generators (CTGs).
  • Two supplementary natural gas-fired heat recovery steam generators (HRSGs) with separate exhaust stacks, one for each Combustion Turbine (CT).
  • One STG (steam turbine generator).

Alisa E. Harris, Vice President, Government & Public Affairs at UGI Energy Services, which has UGI Development as a subsidiary, said in a Jan. 26 e-mail to GenerationHub about this project: “The January 24 PA Bulletin notice is related to an additional unit at the station. As you know, the existing 125 megawatt (MW) plant was converted [from coal] to natural gas in July, 2011. If approved by the Pennsylvania Department of Environmental Protection, the Plan Approval will allow the UGI Development Company to construct and operate an additional natural gas-fired 175 MW electric generating unit.”

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.