Upcoming Changes

Increased Reserve Requirements

1.8.2026 00:00 to 12.31.2026 00:00

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.

Maintenance to tools in Train Environment on Sep. 1 from 10 a.m.-Noon EPT

9.1.2026 from 10:00 to 12:00

PJM will be performing system maintenance in the Train environment on Tuesday, September 1, 2026 from 10:00 a.m.-Noon EPT (1000-1200 hours). During this maintenance, there will be an outage of up to 30 minutes.

Impacted Tool

eGADS

Maintenance to TO Connection in Prod. on Sep. 1 from 2:00 p.m. - 4:00 p.m. EPT

9.1.2026 from 14:00 to 16:00

PJM will be performing system maintenance in the Production environment on Tuesday, September 1, 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 30 minutes.

Impacted Tool

TO Connection

Maintenance to NextGen in Prod. and Train on Sep. 2 from 9:00 a.m. - 11:00 a.m. EPT

Today from 09:00 to 11:00

PJM will be performing maintenance in the Production and Train environments on Wednesday, September 2, 2026, from 9:00 a.m. - 11:00 a.m. EPT (900 - 1100 hours).

During this maintenance, users may see page expiration errors and would need to log out and log back in to resolve.

Impacted Tool:

NextGen

Maintenance to NextGen in Prod. and Train on Sep. 2 from 9:00 a.m. - 11:00 a.m. EPT

Today from 09:00 to 11:00

PJM will be performing maintenance in the Production and Train environments on Wednesday, September 2, 2026, from 9:00 a.m. - 11:00 a.m. EPT (900 - 1100 hours).

During this maintenance, users may see page expiration errors and would need to log out and log back in to resolve.

Impacted Tool:

NextGen

Maintenance to eGADS in Prod. on Sep. 2 from 10:00 a.m. - Noon EPT

Today from 10:00 to 12:00

PJM will be performing system maintenance in the Production environment on Wednesday, September 2, 2026, from 10:00 a.m. - Noon EPT (1000-1200 hours). During this maintenance, there will be an outage of up to 30 minutes.

Impacted Tool

eGADS

Maintenance to Emergency Procedures in Prod. on Sep. 2 from 1:00 p.m. - 3:00 p.m. EPT

Today from 13:00 to 15:00

PJM will be performing system maintenance in the Production environment on Wednesday, September 2, 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 30 minutes.

Impacted Tools

Emergency Procedures

Rescheduled: Maintenance to Markets Gateway in Prod. on Sep. 2 from 3:15 p.m. - 4:00 p.m. EPT

Today from 15:15 to 16:00

The maintenance communicated below has been rescheduled to Wednesday, September 2, 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.

​​​​​Impacted Tool

Markets Gateway​​​​​​

Up to 10 Minutes

Tomorrow from 10:00 to 12:00

PJM will be performing system maintenance in the Production and Train environments

on Thursday, September 3, 2026, from 10:00 a.m. - Noon EPT (1000-1200 hours). During this maintenance, there will be an outage of up to 10 minutes.

Impacted Tool - Planning Center: Queue Point

Maintenance to Queue Point in Prod. and Train on Sep. 3 from 10:00 a.m. - Noon EPT

Tomorrow from 10:00 to 12:00

PJM will be performing system maintenance in the Production and Train environments

on Thursday, September 3, 2026, from 10:00 a.m. - Noon EPT (1000-1200 hours). During this maintenance, there will be an outage of up to 10 minutes.

Impacted Tool - Planning Center: Queue Point

Maintenance to Capacity Exchange and FTR Center in Prod. on Sep 4 from 7:00 a.m. - 5:00 p.m. EPT

9.4.2026 from 07:00 to 17:00

PJM will be performing system maintenance in the Production environment on Friday, September 4, 2026, from 7:00 a.m. - 5:00 p.m. EPT (0700-1700 hours). During this maintenance, there will be an outage of up to 1 hour 30 minutes.

Impacted Tools

Capacity Exchange

FTR Center

eDART Switchover in Prod. on Sep. 8 from 6:30 p.m. - 9:30 p.m. EPT

9.8.2026 from 18:30 to 21:30

PJM will perform a system switchover to eDART in the production environment. The maintenance has been rescheduled to Tuesday, September 8, 2026, from 6:30 p.m. - 9:30 p.m. (1830-2130 hours). During this maintenance, there will be up to a 15 minute outage.

Impacted Tool

eDART

Rescheduled: Maintenance to OASIS and ExSchedule in Prod - now occurring Sep. 9 from 2:30 p.m. - 4:30 p.m. EPT

9.9.2026 from 14:30 to 16:30

The maintenance communicated below has been rescheduled to Wednesday, September 9, 2026, from 2:30 p.m. - 4:30 p.m. (1430-1630 hours). During this maintenance, there will be an outage of up to 5 minutes. ​​

Impacted Tools

ExSchedule

OASIS​​​​​​