Exelon pursues 20-MW storage project at Riverside plant in Maryland

The Exelon Generation unit of Exelon Corp. (NYSE: EXC) is looking to interconnect a 20-MW energy storage facility to be installed adjacent to the former Riverside Unit 6 facility in Maryland, said a PJM Interconnection study on the project dated February 2016.

The installed facilities will have a total capability of 20 MW with none of this output being recognized by PJM as capacity. The proposed in-service date for this project is December 2016. This study does not imply a Baltimore Gas & Electric (BGE) commitment to this in-service date. This project, under PJM queue #AB1-075, will interconnect with the BGE transmission system on the Riverside 115-kV bus at the site of the retired Riverside Unit 6 facility.

Notable is that BGE is another subsidiary of Exelon. The Generation Hub database shows Unit 6 at Riverside as already retired.

The intent of this Combined Feasibility/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 Exelon Generation. It is mid-point in a process leading to an Interconnection Service Agreement.

Notable is that Exelon Corp. said this past November that it plans to retire in early to mid 2016 one unit apiece at the oil- and gas-fired Perryman and Riverside plants in Maryland. Those facts were in a presentation for the annual Edison Electric Institute Financial Conference.

  • Perryman is made up of six units, fired by oil and gas, with 463 MW of net capacity. Those figures include: Perryman Unit 2, with 51 MW of net capacity, which is due to retire in the first quarter of 2016; and the new Perryman Unit 6 (110 MW net), which went into commercial operation in June of 2015.
  • Riverside has three units, is fired by oil and gas, and has 113 MW of net capacity. Those figures include Riverside Unit 4 (74 MW net), which is due to be retired in May 2016.
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.