February 25, 2016
PJM/MISO Pseudo-Tied Units Operating ProcedurePDF
January 18, 2016
BGE Rating Methodology Change
On 12/03/2015, BGE (Baltimore Gas and Electric) implemented a BES rating methodology change. The new rating methodology incorporates relay thermal limitations as part of the facility rating, an industry best practice.
List of facilities affected by this changePDF
November 19, 2015
Correspondence between Consolidated Edison Company of New York and PJM Interconnection, L.L.C. related to existing service agreements and associated reservation priority rights on OASIS.
Transmission Service under Original Service Agreements No. 1873 & 1874PDF
February 4, 2015
Keystone #3 500/230 kV transformer
Keystone #3 500/230 kV transformer was out of service due to a relay operation on 11/3/2014. The transmission owner is still assessing the cause of the relay operation. For the duration of Keystone #3 transformer outage, PJM will take the following actions:
- Increase reserve requirement to cover the potential loss of Keystone #1 and #2 units (loss of the Keystone #4 500/230 kV transformer will result in the loss of both Keystone units);
- Activate the single contingency loss of Keystone #4 500/230 kV transformer, Keystone #1 unit, Keystone #2 unit, Juniata-Keystone (5004) 500 kV line and Conemaugh-Keystone (5003) 500 kV line.
The Keystone #3 transformer outage may impact the off-cost operation of BED-BLA transfer interface. Transmission owner has identified the cause for the relay operation which took out or service the Keystone #3 500/230 kV transformer. Required repairs and testing to restore the Keystone #3 transformer are expected to be complete by Thursday, February 5, 2015.
On Friday, February 6, 2015 Keystone #3 500/230 kV transformer has been fully restored back in service; and hence single contingency simulating loss of Keystone #4 500/230 kV transformer, Keystone #1 unit, Keystone #2 unit, Juniata-Keystone (5004) 500 kV line and Conemaugh-Keystone (5003) 500 kV line was disabled.