Active Messages

PJM will be performing system maintenance in the Production environment on Monday, March 23, 2026, from 3:15 p.m. - 4:00 p.m. EPT (1515-1600 hours).

During this maintenance, there will be an outage of up to 45 minutes.

PJM will be performing system maintenance to Emergency Procedures in the Production and Train environments on Tuesday, March 24, 2026, from 1:00 p.m. - 3:00 p.m. EPT (1300 - 1500 hours). During this maintenance, there will be an outage of up to 10 minutes.

The maintenance communication below has been rescheduled to Tuesday, March 24, 2026, from 2:00 p.m. - 4:00 p.m. EPT (1400 - 1600 hours). During this maintenance, there will be an outage of up to 1 hour.

****Previously sent message****

​​​PJM will be performing system maintenance to Capacity Exchange in the Production environment on Wednesday, March 18, 2026, from 2:00 p.m. - 4:00 p.m. EPT (1400 - 1600 hours). During this maintenance, there will be an outage of up to 1 hour.

PJM will be performing system maintenance to Markets Gateway in the Production environment on Wednesday, March 25, 2026, from 3:00 p.m. - 6:00 p.m. EPT (1500 - 1800 hours).

During this maintenance, there will be an outage of up to 1 hour.

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

PJM will be performing system maintenance to FTR Center in the Production environment on Wednesday, March 25, 2026, from 4:30 p.m. - 6:00 p.m. EPT (1630 - 1800 hours). During this maintenance, there will be an outage of up to 60 minutes.

Per FERC Order 881, effective for market day 3/4 and forward the Day Ahead Market will use 881 forecast ratings.

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.