PJM Coronavirus (COVID-19) Information

Markets & Operations

System Information


Exceptions to Three Percent Three Pivotal Supplier Test Threshold XLS
Historical Area Control Error Data
Potential Transmission Switching Options
Critical Energy Infrastructure Information
Emergency Procedures
Real-Time Operational Data - This page includes locational marginal pricing, transfer limits, instantaneous load and transmission constraints
Historical Load Data
Seven-Day Load Projections & Constraint Forecast
Historical 1800 Load Forecast
Long-Term Firm Transmission Service Requests - system impact studies
Day-Ahead Interface Flows & Limits

Pricing Interface Definitions

England:  PDF | CSV
Red Bank:  PDF | CSV
Warren PDF
Yorktown:  PDF | CSV

Generation Outlet Interfaces

PA Central:  PDF CSV 

Reactive Transfer Interfaces

Western Interface Definition Change:  PDF

Special Protection Scheme (SPS/RAS) Installation/Removal

Quad Cities/Cordova RAS Retirement
The Quad Cities/Cordova RAS has been retired as of 8.23.2019. The RAS retirement was announced earlier this year.

Procedural Updates

The following procedure will be included in the upcoming Manual-03 publication:
Wescosville Switching Procedure PDF

Thermal Ratings

Ratings Information
Manual-3: Attachment F Short-Term Emergency Line Ratings XLS
Crosstown Common Trench Circuit Ratings XLS
230KV Harbor Crossing Cables (2344 & 2345) - Special Ratings XLS
Common Trench Cable Ratings XLS

Voltage Limits

PJM RTO and TO Voltage Limits CSV

Automatic Sectionalizing Schemes

Manual 03: Attachment E Automatic Sectionalizing Schemes Pending Approval and Recent Changes PDF
Manual 03: Attachment E Automatic Sectionalizing Schemes PDF

Transmission Facilities Information

Reliability & Markets Tariff Facility Modifications
Approved or Denied for 6.1.20206.1.2019 | 6.1.2018 XLS
To be Effective:
June 2020 as Proposed by Transmission Owners - 1.31.2020 XLS
June 2019 as Proposed by Transmission Owners - 11.30.2018 XLS
June 2018 as Proposed by Transmission Owners - 11.27.2017 XLS
List of Designated Network Resources
Transmission Facilities 
Complete Descriptions CSV
Outage Information
Regional Transmission Expansion Plan Construction Status

Transmission Outage Cancellation & Rescheduling After Day-Ahead Market Metrics

2020201920182017 PDF

EMS Model Builds

Next Model Build: The Summer 2020 EMS Model Build is scheduled for May 27, 2020, starting at 9:00.

Future Model Builds:


Fall 2020 9.15.2020 
Winter 2020  12.8.2020 
Spring 2021  3.9.2021 
Summer 2021  5.18.2021 
Fall 2021  9.14.2021 
Winter 2021  12.7.2021 

Past Model Builds:


Scheduled  Actual Date Implemented 
Spring 2020 3.10.2020  3.10.2020 
Winter 2019  12.10.2019  12.10.2019 
Fall 2019 9.24.2019  9.24.2019 
Summer 2019  5.21.2019  5.21.2019 
Spring 2019  3.12.2019  3.12.2019