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 Queue Scope in Prod. and Train on Sep. 22 from 10:00 a.m. - 11:00 a.m. EPT

9.22.2026 from 10:00 to 11:00

PJM will be performing system maintenance in the Production and Train environments on Tuesday, September 22, 2026, from 10:00 a.m. - 11:00 a.m. EPT (1000-1100 hours).

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

Impacted Tools

Planning Center: Queue Scope (Tabular)

Planning Center: Queue Scope (Geospatial)

Maintenance to Queue Scope in Prod. and Train on Sep. 22 from 10:00 a.m. - 11:00 a.m. EPT

9.22.2026 from 10:00 to 11:00

PJM will be performing system maintenance in the Production and Train environments on Tuesday, September 22, 2026, from 10:00 a.m. - 11:00 a.m. EPT (1000-1100 hours).

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

Impacted Tools

Planning Center: Queue Scope (Tabular)

Planning Center: Queue Scope (Geospatial)

Maintenance to eGADS in Prod. on Sep. 22 from 10:00 a.m. - Noon EPT

9.22.2026 from 10:00 to 12:00

PJM will be performing system maintenance in the Production environment on Tuesday, September 22, 2026, from 10:00 a.m. - Noon EPT (1000-1200 hours). During this maintenance, there will be an outage of up to 1 hour.

Impacted Tool

eGADS

Maintenance to eCredit in Prod. and Train on Sep. 22 from 1:00 p.m. - 5:00 p.m. EPT

9.22.2026 from 13:00 to 17:00

PJM will be performing system maintenance in the Production and Train environments on Tuesday, September 22, 2026, from 1:00 p.m. - 5:00 p.m. EPT (1300 - 1700 hours). During this maintenance, there will be an outage of up to 10 minutes.

Impacted Tool

eCredit

Maintenance to eCredit in Prod. and Train on Sep. 22 from 1:00 p.m. - 5:00 p.m. EPT

9.22.2026 from 13:00 to 17:00

PJM will be performing system maintenance in the Production and Train environments on Tuesday, September 22, 2026, from 1:00 p.m. - 5:00 p.m. EPT (1300 - 1700 hours). During this maintenance, there will be an outage of up to 10 minutes.

Impacted Tool

eCredit

Maintenance to Tools in Train Environment on Sep. 22 from 5:00 p.m.-11:00 p.m. EPT

9.22.2026 from 17:00 to 23:00

PJM will be performing system maintenance in the Train environment on Tuesday, September 22, 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​​​​​​

Happening Today: Network Maintenance May/Cause Outages to PJM tools in Prod. on Sept. 22 from 6:30 p.m. - Midnight EPT

9.22.2026 18:30 to 9.23.2026 00:00

PJM will be performing network maintenance in the Production environment on Tuesday, September 22, 2026, from 6:30 p.m. - Midnight EPT (1830-0000 hours).

During this maintenance, there will be intermittent outages of up to 30 minutes.

Impacted Tools

Account Manager

Billing Line Item Transfer

Bulletin Board

Capacity Exchange

Cost Agent

DER Directory

DIMA

DR Hub

eCredit

eDART

eGADS

Emergency Procedures

ELCC Calculator

ExSchedule

FTR Center

Gas Pipeline

InSchedule

Jetstream

Maps

Market Settlements Reporting System (MSRS)

Market to Market

Markets Gateway

Member Community

Membership Management Community

Messages

Model on Demand

Network Changes

NextGen

OASIS

PJM Connect

PJM Tools home page

Planning Center: Competitive Planner

Planning Center: Gen Model

Planning Center: Queue Point

Planning Center: Queue Scope

Planning Center: TC Planner

Planning Center: TO Planner

Planning Community

Post Contingency Local Load Relief Warning

Power Meter

Resource Tracker

Secure Share

TO Connection

Tools Security

Voting

Maintenance to eDART Train September 23, 2026, from 1:00 p.m. to 5:00 p.m. EPT

Today from 13:00 to 17:00

PJM will perform maintenance to eDART in the Train environment on Wednesday, September 23, 2026, from 1:00 p.m. to 5:00 p.m. EPT (1300 to 1700).

During the release there will be intermittent outages of up to two hours for certain portions of the eDART Train system and error messages may be generated.

Please note that the eDART auto ticket creation for Generator outage tickets enhancement is being deferred to a future release which will be communicated via Pardot. Stakeholders should review the Release Notes for details.

*Corrected* Maintenance to Markets Gateway and Stale Data in Prod. on September 23 from 3:00 p.m. - 6:00 p.m. EPT

Today from 15:00 to 18:00

PJM will be performing system maintenance to Markets Gateway in the Production environment on Wednesday, September 23, 2026, from 3:00 p.m. - 6:00 p.m. EPT (1500-1800 hours).

During this maintenance, there will be an outage of up to 30 minutes to Markets Gateway.

Stale data will appear on Markets Gateway, Data Miner, Data Viewer, PJM Now and Markets and Operations page of PJM.com.

Impacted Tools

PJM.com

Markets Gateway

Data Viewer

Maintenance to Resource Tracker in Prod. and Train on Sept. 23 from 5 p.m. - 7:00 p.m. EPT

Today from 17:00 to 19:00

PJM will be performing system maintenance in the Production and Train environments on Wednesday, September 23, 2026, from 5:00 p.m. - 7:00 p.m. EPT (1700 -1900 hours). During this release, there will be an outage of up to 5 minutes.

Impacted Tools - Resource Tracker

Maintenance to Resource Tracker in Prod. and Train on Sept. 23 from 5 p.m. - 7:00 p.m. EPT

Today from 17:00 to 19:00

PJM will be performing system maintenance in the Production and Train environments on Wednesday, September 23, 2026, from 5:00 p.m. - 7:00 p.m. EPT (1700 -1900 hours). During this release, there will be an outage of up to 5 minutes.

Impacted Tools - Resource Tracker

Maintenance to Tools in Prod. and Train on Sept. 23 from 6:00 p.m. - 7:00 p.m. EPT

Today from 18:00 to 19:00

PJM will be performing system maintenance in the Production and Train environments on Wednesday, September 23, 2026, from 6:00 p.m. - 7:00 p.m. EPT (1800-1900 hours). During this maintenance, there will be an outage of up to 5 minutes.

Impacted Tool

Data Viewer

DER Directory

Messages

PJM Tools home page

Resource Tracker

Maintenance to Tools in Prod. and Train on Sept. 23 from 6:00 p.m. - 7:00 p.m. EPT

Today from 18:00 to 19:00

PJM will be performing system maintenance in the Production and Train environments on Wednesday, September 23, 2026, from 6:00 p.m. - 7:00 p.m. EPT (1800-1900 hours). During this maintenance, there will be an outage of up to 5 minutes.

Impacted Tool

Data Viewer

DER Directory

Messages

PJM Tools home page

Resource Tracker

Software Release to DR Hub in Prod. on Sept. 24 from 3:00 p.m. - 5:00 p.m. EPT

Tomorrow from 15:00 to 17:00

PJM will be releasing software to DR Hub in the Production environment on Thursday, September 24, 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