Units of Exelon (NYSE: EXC) on Oct. 31 filed notices with PJM Interconnection that they intend to deactivate three oil- and gas-fired facilities in Pennsylvania and Maryland, triggering a PJM review of whether these shutdowns will cause any regional grid problems.
The latest PJM list of pending power plant deactivation requests, updated to Nov. 2, shows an Oct. 31 request from Exelon’s PECO unit for the Feb. 1, 2013, deactivations of the 133-MW Schuylkill Unit 1 and the 3-MW Schuylkill Diesel Unit. There was also an Oct. 31 request from Exelon’s BGE affiliate, acquired in a recent merger with Constellation Energy, for the June 1, 2014, deactivation of the 118-MW Riverside Unit 6.
These latest requests bring to 11,087 MW the total for future deactivations within PJM, with most of that targeted capacity being coal-fired.
Exelon had said in its Nov. 1 third-quarter earnings report that its Exelon Generation unit notified PJM of its intention to permanently retire Schuylkill Unit 1 by Feb. 1, 2013, and Riverside Unit 6 by Jun. 1, 2014. Schuylkill Unit 1 is a peaking oil unit located in Philadelphia, Pa., which was placed in service in 1958. Riverside Unit 6 is a peaking gas/kerosene unit located in Baltimore, Md., which was placed in service in 1970.
The units are being retired because they are no longer economic to operate due to their age, relatively high capital and operating costs and current market conditions, Exelon said. PJM has 30 days to review whether the proposed retirements of the units create transmission system reliability issues, Exelon noted. Once PJM’s review is complete, Exelon will determine final retirement dates for the units.