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.

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​​​​​​

Maintenance to Voting in Prod. and Train on Sep. 9 from 5:00 p.m. - 8:00 p.m. EPT

9.9.2026 from 17:00 to 20:00

PJM will be performing system maintenance in the Production and Train environments on Wednesday, September 9, 2026, from 5:00 p.m. - 8:00 p.m. EPT (1700-2000 hours). During this maintenance, there will be an outage of up to 5 minutes.

Impacted Tool

Voting

Maintenance to Voting in Prod. and Train on Sep. 9 from 5:00 p.m. - 8:00 p.m. EPT

9.9.2026 from 17:00 to 20:00

PJM will be performing system maintenance in the Production and Train environments on Wednesday, September 9, 2026, from 5:00 p.m. - 8:00 p.m. EPT (1700-2000 hours). During this maintenance, there will be an outage of up to 5 minutes.

Impacted Tool

Voting

Maintenance to DR Hub in Prod. and Train on Sep. 10 from 1:00 p.m. - 3:00 p.m. EPT

9.10.2026 from 13:00 to 15:00

PJM will be performing a system maintenance in the Production and Train environments on Thursday, September 10, 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 15 minutes.

Impacted tool - DR Hub

Maintenance to DR Hub in Prod. and Train on Sep. 10 from 1:00 p.m. - 3:00 p.m. EPT

9.10.2026 from 13:00 to 15:00

PJM will be performing a system maintenance in the Production and Train environments on Thursday, September 10, 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 15 minutes.

Impacted tool - DR Hub

Software Release to DR Hub in Prod. and Train on Sep. 10 from 3:00 p.m. - 5:00 p.m. EPT

9.10.2026 from 15:00 to 17:00

PJM will be releasing software to DR Hub in the Production and Train environments on Thursday, September 10, 2026, from 3:00 p.m. - 5:00 p.m. EPT (1500 - 1700 hours). During this maintenance, there will be an outage of up to 30 minutes.

DR Hub Release Notes

Impacted tool

DR Hub

Software Release to DR Hub in Prod. and Train on Sep. 10 from 3:00 p.m. - 5:00 p.m. EPT

9.10.2026 from 15:00 to 17:00

PJM will be releasing software to DR Hub in the Production and Train environments on Thursday, September 10, 2026, from 3:00 p.m. - 5:00 p.m. EPT (1500 - 1700 hours). During this maintenance, there will be an outage of up to 30 minutes.

DR Hub Release Notes

Impacted tool

DR Hub

Maintenance to Tools in Train Environment on Sep. 10 from 5:00 p.m.-11:00 p.m. EPT

9.10.2026 from 17:00 to 23:00

PJM will be performing system maintenance in the Train environment on Thursday, September 10, 2026, from 5:00 p.m. - 11:00 p.m. EPT (1700-2300 hours). During this maintenance, there will be an outage of up to 6 hours.

Impacted Tools

Account Manager

Bulletin Board

DER Directory

eCredit

eDART

eGADs

Emergency Procedures

ExSchedule

FTR Center

InSchedule

Market to Market

Market Settlements Reporting System

Markets Gateway

OASIS

Planning Center: Competitive Planner

Planning Center: Gen Model

Planning Center: Queue Point​​​​​​

Planning Center: Queue Scope

Planning Center: TC Planner

Planning Center: TO Planner

Resource Tracker

TO Connection

Maintenance to MSRS in Prod. on Sep. 10 from 7:00 p.m. - 10:00 p.m. EPT

9.10.2026 from 19:00 to 22:00

PJM will be performing system maintenance in the Production environment on Thursday, September 10, 2026, from 7:00 p.m. - 10:00 p.m. EPT (1900-2200 hours).

During this maintenance, there will be an outage of up to 15 minutes.

Impacted Tools

​​​Market Settlements Reporting System (MSRS)

Network Maintenance May/Cause Outages to PJM tools in Prod. and Train on Sep. 10 from 7:00 p.m. - 11:30 p.m. EPT

9.10.2026 from 19:00 to 23:30

PJM will be performing network maintenance in the Production and Train environments on Thursday, September 10, 2026, from 7:00 p.m. - 11:30 p.m. EPT (1900-2330 hours). During this maintenance, there will be intermittent outages of up to 15 minutes.

Impacted Tools

1. Account Manager
2. Billing Line Item Transfer
3. Bulletin Board
4. Capacity Exchange
5. Cost Agent
6. DER Directory
7. DIMA
8. DR Hub
9. eCredit
10. eDART
11. eGADS
12. Emergency Procedures
13. ELCC Calculator
14. ExSchedule
15. FTR Center
16. InSchedule
17. Jetstream
18. Maps
19. Market Settlements Reporting System (MSRS)
20. Market to Market
21. Markets Gateway
22. Member Community
23. Membership Management Community
24. Messages
25. Model on Demand
26. Network Changes
27. NextGen
28. OASIS
29. PJM Connect
30. PJM Tools home page
31. Planning Community & Center: Competitive Planner, Gen Model, Queue Point, Queue Scope, TC/TO Planners
32. Post Contingency Local Load Relief Warning
33. Power Meter
34. Resource Tracker
35. Secure Share
36. TO Connection
37. Tools Security
38. Voting

Network Maintenance May/Cause Outages to PJM tools in Prod. and Train on Sep. 10 from 7:00 p.m. - 11:30 p.m. EPT

9.10.2026 from 19:00 to 23:30

PJM will be performing network maintenance in the Production and Train environments on Thursday, September 10, 2026, from 7:00 p.m. - 11:30 p.m. EPT (1900-2330 hours). During this maintenance, there will be intermittent outages of up to 15 minutes.

Impacted Tools

1. Account Manager
2. Billing Line Item Transfer
3. Bulletin Board
4. Capacity Exchange
5. Cost Agent
6. DER Directory
7. DIMA
8. DR Hub
9. eCredit
10. eDART
11. eGADS
12. Emergency Procedures
13. ELCC Calculator
14. ExSchedule
15. FTR Center
16. InSchedule
17. Jetstream
18. Maps
19. Market Settlements Reporting System (MSRS)
20. Market to Market
21. Markets Gateway
22. Member Community
23. Membership Management Community
24. Messages
25. Model on Demand
26. Network Changes
27. NextGen
28. OASIS
29. PJM Connect
30. PJM Tools home page
31. Planning Community & Center: Competitive Planner, Gen Model, Queue Point, Queue Scope, TC/TO Planners
32. Post Contingency Local Load Relief Warning
33. Power Meter
34. Resource Tracker
35. Secure Share
36. TO Connection
37. Tools Security
38. Voting

Maintenance to Gas Pipeline in Prod. on Sep. 11 from 2:00 p.m. - 5:00 p.m. EPT

Today from 14:00 to 17:00

PJM will be performing system maintenance in the Production environment on Friday, September 11, 2026 from 2:00 p.m. - 5:00 p.m. EPT (1400-1700 hours). During this maintenance, there will be an outage of up to 30 minutes.

Impacted Tool - Gas Pipeline

Hudson Scheduling Restriction

9.14.2026 04:00 to 9.16.2026 23:00

The Hudson path is restricted to 0MWs from Sep 14, 2026 04:00 until Sep 16, 2026 23:00 due to eDART tickets 1289787 and 1320649.

Please reference the Transmission Facilities Outage List for the above mentioned eDART ticket in the event of updates done after this posting.

https://edart.pjm.com/reports/linesout.txt