Active Messages

PJM will be performing maintenance to its Forecast Applications in the Production environment on Wednesday, March 11, 2026, from 1:00 p.m. - 3:00 p.m. EPT (1300 - 1500 hours).

A brief outage may result in up to three missed intervals in the following datasets in Data Miner.

1. Five Minute Wind Power Forecast
2. Five Minute Solar Power Forecast
3. Five Minute Load Forecast

**Any missing Data Miner interval information will not be backfilled.

PJM will be performing system maintenance to TO Connection in the Production and Train environments on Thursday, March 12, 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.

This is a reminder that Daylight Savings Time (DST) will be occurring on Sunday, March 8, at 2:00 a.m. EST (0200 hours). Information regarding the 2026 Spring Daylight Savings Transition for the PJM Markets Gateway application is available on the Markets Gateway Tools page.

Stakeholders should ensure that all offers are verified for the missing hour. If you have any questions regarding this communication, please contact PJM's Member Relations or (610) 666-8980

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.