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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.

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.

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.

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.