Active Messages

SubjectApplicationMessage DetailsStart Date of ChangeEnd Date of Change
Maintenance to PJM Connect in Prod. on Jan. 13 from 5:00 p.m. - 8:00 p.m. EPT
  • PJM.com and other subsidiary websites
Tool or website outage
Users will be unable to access tool or website, Please share within your organization

PJM will be performing system maintenance to PJM Connect in the Production environment on Tuesday, January 13, 2026, from 5:00 p.m. - 8:00 p.m. EPT (1700 - 2000 hours). During this maintenance, there will be intermittent outages of up to 15 minutes.

1/13/2026 17:001/13/2026 20:00
Maintenance to eDART in Prod. on Jan. 13 from 6:00 p.m. - 10:00 p.m. EPT
  • eDART
Tool or website outage
Users will be unable to access tool or website, Please share within your organization

PJM will be performing system maintenance to eDART in the Production environment on Tuesday, January 13, 2026, from 6:00 p.m. - 10:00 p.m. EPT (1800 - 2200 hours). During this maintenance, there will be intermittent outages of up to 20 minutes.

1/13/2026 18:001/13/2026 22:00
Maintenance to Markets Gateway, Data Miner, SCED, and ASO on Jan. 14 from 3:00 p.m. - 5:00 p.m. EPT
  • Data Miner 2
  • Data Viewer
  • Markets Gateway
  • PJM Now
  • PJM.com and other subsidiary websites
Tool or website outage
Users will be unable to access tool or website, Please share within your organization

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, January 14, 2026, from 3:00 p.m. - 5:00 p.m. EPT (1500 to 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.

1/14/2026 15:001/14/2026 17:00
Maintenance to Account Manager, Bulletin Board, Voting in Prod. on Jan. 14 from 5:00 p.m. - 8:00 p.m. EPT
  • Account Manager
  • Bulletin Board
  • Voting
Tool or website outage
Users will be unable to access tool or website, Please share within your organization

PJM will be performing system maintenance in the Production environment on Wednesday, January 14, 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 15 minutes.

1/14/2026 17:001/14/2026 20:00
Maintenance to Data Viewer in Prod. on Jan. 15 from 4:00 p.m. - 6:00 p.m. EPT
  • Data Viewer
Tool or website outage
Users will be unable to access tool or website, Please share within your organization

PJM will be performing system maintenance to Data Viewer in the Production environment on Thursday, January 15, from 4:00 p.m. - 6:00 p.m. EPT (1600 -1800 hours).

During this maintenance, there will be an outage of up to 10 minutes.

1/15/2026 16:001/15/2026 18:00
Updated Synchronized Reserve Offer Cap Penalty
  • Markets Gateway
  • Messages

An updated version of the Synchronized Reserve Offer Cap Penalty spreadsheet with a new value effective January 2026 has been published to the pjm.com website. It may be found under pjm.com > Markets & Operations > Ancillary Services or at the following link: http://www.pjm.com/markets-and-operations/ancillary-services.aspx, under the Reserve Price Formation section. This file lists the average value of the Synchronized Reserve Penalty along with the effective date. As specified in Section 4.2.3 of Manual 11, Synchronized Reserve offer prices are capped at this value. Please review the content and verify that your resources have submitted daily and hourly Synchronized Reserve offer prices in Markets Gateway at or below the offer cap.

If you have any questions, please contact PJM's Member Relations or 610-666-8980.


1/1/2026 00:001/2/2026 00:00
Merchant Transmission Outage Ticket Changes for Sat Jan 10
  • ExSchedule
  • OASIS

The Hudson path is restricted to 0 MW from Feb 9, 2026 06:00 until Feb 20, 2026 16:00 due to eDart ticket #1293981.

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

2/9/2026 06:002/20/2026 16:00
Increased Reserve Requirements
  • Markets Gateway
  • Messages
No action required/information only, Please share within your organization

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.

1/8/2026 00:0012/31/2026 00:00