Active Messages

PJM will be performing system maintenance to Markets Gateway, Data Miner, Security Constrained Economic Dispatch (SCED), and Ancillary Services Optimizer (ASO) in the Production environment on Wednesday, February 25, 2026, from 2:50 p.m. - 5:00 p.m. EPT (1450 - 1700 hours).

During this maintenance, there will be an outage of up to 30 minutes.

Stale data will appear on Data Miner, PJM Now, Data Viewer and PJM.com.

PJM may utilize manual economic dispatch for generation control.

ATC on Linden VFT path is limited to 300MW due to emergency outage submitted vide eDART # 1302423 outage timeframe 02/17/2026 17:00 through 02/27/2026 15:00 as Linden VFT Unit #3 being derated to 90 MW due to excitation issues.

PJM will be performing system maintenance to Secure Share in the Production environment on Thursday, February 26, 2026, from 4:00 p.m. - 7:00 p.m. EPT (1600 - 1900 hours). During this maintenance, there will be an outage of up to 1 hour.

PJM will be performing maintenance to eDART in the Production environment on Monday, March 2, from 7:00 a.m. to 10:00 a.m. EPT (0700 to 1000 hours).

During the release there will be an outage of up to 10 minutes to eDART Production and error messages may be generated.

PJM will be performing system maintenance to Emergency Procedures in the Production environment on Tuesday, March 3, 2026, from 10:00 a.m. - Noon EPT (1000 - 1200 hours). During this maintenance, there will be an outage of up to 30 minutes.

Due to the non-performance of committed Synchronized Reserve resources during Synchronized Reserve Events since the implementation of Reserve Price Formation (October 1, 2022) and to maintain compliance with NERC Standards, effective from May 19, 2023, PJM carried an additional 30% on the Reliability requirement component of Synchronized and Primary reserve in the RTO only in the Day-Ahead, and Real-time Markets for all hours. Effective January 9, 2026 instead of 30% PJM will carry an additional 20% on the Reliability requirement component of Synchronized and Primary reserve in the RTO only in the Day-Ahead, and Real-time Markets for all hours until further notice.

For example (rounded to whole MW): If the largest single contingency = 1,630 MW

Default (100% of largest contingency)

Synchronized Reserve requirement: 1,630*1 + 190 = 1,820 MW

Primary Reserve requirement: 1,630*1.5 + 190 = 2,635 MW

30-Minute Reserve requirement: Max(3,000, gas contingency, PR reliability) + 190 = 3,190 MW

Increased reliability by 20%

Synchronized Reserve requirement: 1,630*1.2 + 190 = 2,146 MW

Primary Reserve requirement: 1,630*1.2*1.5 + 190 = 3,124 MW

30-Minute Reserve requirement: Max(3,000, gas contingency, PR reliability) + 190 = 3000 + 190 = 3,190 MW

If you have any questions regarding this message, please contact PJM Customer Service at (866) 400-8980 or send an email to custsvc@pjm.com. Thank you.