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.

Formula Rate Data Submission Reminder: June 2026

4.13.2026 00:00 to 6.30.2026 23:59

As June approaches, some TOs will submit formula rate filings for rate year June 2026 - May 2027. Please remember to add your June 2026 - May 2027 Formula Rate Data into TC Planner by May 15, 2026. This is critical for TC Planner to function well. Application background, action items and available resources are provided below:

Background:

On April 11, 2024 at 3 p.m. EPT PJM launched a new tool, TC Planner tool. Transmission Cost Planner (TC Planner) replaced the previous Transmission Cost Information Center (TCIC). It helps PJM stakeholders in understanding current transmission costs and estimating future transmission costs.

Actions Requested:

1. Access Request: To add formula rate data into TC Planner for your company, write access is needed.

- An existing account in the PJM Account Manager will automatically grant users read-only access to the TC Planner. No additional access requests are required beyond having a valid Account Manager account.

- To request write access or to set up a new PJM account, please visit tcplanner-take-a-tour

1. Add both planning and settlement formula rate data (June 2026 - May 2027) into TC Planner for your company by May 15, 2026

Materials & Support:

1. We have available materials, including the User Guide, a Training Demo and Take A Tour document for TC Planner. Those materials show how to submit access request and add formula rate data into TC Planner.
2. Please contact TC Planner support for any questions or concerns.

Maintenance to Markets Gateway in Train May 12 from 9:00 a.m. - noon EPT

Today from 09:00 to 12:00

PJM will be performing system maintenance in the Train environment on Tuesday, May 12, from 9:00 a.m. - noon EPT (0900-1200 hours).

During this maintenance, there will be an outage of up to 1 hour.

Impacted Tool

Markets Gateway​​​​​​

Maintenance to Power Meter in Prod. and Train on May 12 from 4:30 p.m.-6:00 p.m. EPT

Today from 16:30 to 18:00

PJM will be performing system maintenance in the Production and Train environments on Tuesday, May 12, 2026 from 4:30 p.m. - 6:00 p.m. EPT (1630-1800 hours). During this maintenance, there will be an outage of up to 15 minutes.

Impacted Tool

Power Meter

Maintenance to Power Meter in Prod. and Train on May 12 from 4:30 p.m.-6:00 p.m. EPT

Today from 16:30 to 18:00

PJM will be performing system maintenance in the Production and Train environments on Tuesday, May 12, 2026 from 4:30 p.m. - 6:00 p.m. EPT (1630-1800 hours). During this maintenance, there will be an outage of up to 15 minutes.

Impacted Tool

Power Meter

Maintenance to Various Tools in Prod. and Train on May 12 from 6:00 p.m. - 10:00 p.m. EPT

Today from 18:00 to 22:00

PJM will be performing system maintenance in the Production and Train environments on Tuesday, May 12, 2026, from 6:00 p.m. - 10:00p.m. EPT (1800-2200 hours).

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

Impacted Tools:

1. Cost Agent (Production only - No Train environment for this tool)
2. Data Viewer (Production only - No Train environment for this tool)
3. DER Directory
4. ELCC Calculator (Production only - No Train environment for this tool)
5. Gas Pipeline (Production only - No Train environment for this tool)
6. Messages
7. NextGen
8. PJM Tools home page
9. Queue Scope
10. Resource Tracker (Production only - No Train environment for this tool)​​​

Maintenance to Various Tools in Prod. and Train on May 12 from 6:00 p.m. - 10:00 p.m. EPT

Today from 18:00 to 22:00

PJM will be performing system maintenance in the Production and Train environments on Tuesday, May 12, 2026, from 6:00 p.m. - 10:00p.m. EPT (1800-2200 hours).

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

Impacted Tools:

1. DER Directory
2. Messages
3. NextGen
4. PJM Tools home page
5. Queue Scope

Maintenance to Markets Gateway in Prod on May 13 from 3:00 p.m. - 5:00 p.m. EPT

Tomorrow from 15:00 to 17:00

PJM will be performing system maintenance in the Production environment on Wednesday, May 13, 2026, from 3:00p.m. - 5:00 p.m. EPT (1500-1700 hours).

During this maintenance, there will be an outage of up to 1 hour.

Impacted Tool

Markets Gateway

Network Maintenance May Cause Outages to PJM Tools in Prod. on May 13 from 6:00 p.m. - 11:59 p.m. EPT

Tomorrow from 18:00 to 23:59

PJM will be performing network maintenance in the Production environment on Wednesday, May 13, 2026, from 6:00 p.m. - 11:59 p.m. EPT (1800-2359 hours).

During this maintenance, there will be intermittent outages of up to 10 minutes. ​​

Impacted Tools:

Account Manager

Billing Line Item Transfer

Bulletin Board

Capacity Exchange

Cost Agent

Data Viewer

DER Directory

DIMA

DR Hub

eCredit

eDART

eGADS

ELCC Calculator

Emergency Procedures

ExSchedule

FTR Center

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.com

PJM Now

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

Tech Change Community​​​​​​

TO Connection

Tools Security

Voting

Maintenance to eDART Production May 14, 2026, from 11:00 a.m. to 3:00 p.m. EPT

5.14.2026 from 11:00 to 15:00

PJM will perform maintenance to eDART in the Production environment on Thursday, May 14, 2026, from 11:00 a.m. to 3:00 p.m. EPT (1100 to 1500).

During the release there will be intermittent outages of up to 30 minutes for certain portions of the eDART Production system and error messages may be generated.

Please see the eDART Release Notes for additional details.

Maintenance to eCredit in Prod. and Train on May 14 from 1:00 p.m. - 4:00 p.m. EPT

5.14.2026 from 13:00 to 16:00

PJM will be performing system maintenance in the Production and Train environments on Thursday, May 14, 2026, from 1:00 p.m. - 4:00 p.m. EPT (1300 - 1600 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 May 14 from 1:00 p.m. - 4:00 p.m. EPT

5.14.2026 from 13:00 to 16:00

PJM will be performing system maintenance in the Production and Train environments on Thursday, May 14, 2026, from 1:00 p.m. - 4:00 p.m. EPT (1300 - 1600 hours). During this maintenance, there will be an outage of up to 10 minutes.

Impacted Tool

eCredit

Maintenance to Bulletin Board, Messages, and PJM Tools Home Page in Prod. and Train on May 14 from 5:00 p.m. - 8:00 p.m. EPT

5.14.2026 from 17:00 to 20:00

PJM will be performing system maintenance in the Production and Train environments on Thursday, May 14, 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.

Impacted Tool

1. Bulletin Board
2. Messages​​
3. PJM Tools home page

Maintenance to Bulletin Board, Messages, and PJM Tools Home Page in Prod. and Train on May 14 from 5:00 p.m. - 8:00 p.m. EPT

5.14.2026 from 17:00 to 20:00

PJM will be performing system maintenance in the Production and Train environments on Thursday, May 14, 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.

Impacted Tool

Bulletin Board

Messages​​

PJM Tools home page