System Operations

PJM works behind the scenes to ensure the reliability of the power grid and to keep the lights on. System Operations is responsible for managing the transmission and distribution grid. PJM coordinates and directs the operation of the region’s transmission grid. Power grid operators at PJM make real-time decisions that balance electricity supply and demand to keep the lights on. PJM performs “what if” scenarios all day long to assess conditions based on data from hundreds of thousands of points on the grid every four seconds.

Operations Summary
Operations Reports

Generation

Forecasted Generation Outages

Wind: Generation | Power Graph

Generation & Extra High Voltage Losses

Capacity by Fuel Type: 2022 PDF

Dynamic Transfer - generators outside of PJM footprint wanting to deliver output into PJM territory

Tie Lines - connect two or more balancing authorities or transmission zones of an electric system

Initiate a Generation Transfer Process | User Guide PDF

Automated Combustion Turbine Notifications

Guideline: Generation Owner Periodic Tasks and Data Submittals PDF

Transmission

Off-Cost Operations

Outage Analysis Reports  - For use by transmission and reliability personnel only.

Transmission Facilities  - request access

RTO Transfer Limit & Flows

This data is now available at Data Miner.

Load	Date
Load Forecasts
Hourly Load: Preliminary | Estimated | Metered

Interchange
Actual/Schedule Summary Report
Real-Time Scheduled Interchange

Contact PJM

(866) 400-8980 (610) 666-8980 Member Relations

New to System Operations?
Maps: Transmission Zones PDF (2.45 MB) Interregional Data Map

Training
How system operations work in PJM
Find Upcoming Training
Generation Operator Fundamentals
Fundamentals of Transmission Operations
Transmission planning, modeling & energization training materials can be found on the RTEP Development page

Tools
Overview
Data Miner - access historical data Learn More | Sign In
Data Viewer - access real-time data Learn More | Sign In
ExSchedule Learn More | Sign In
InSchedule Learn More | Sign In
State Net Import/Export Map Learn More

Manuals
M-1: Control Center & Data Exchange Requirements WEB | Current | Redline PDF
M-3: Transmission Operations WEB | Current | Redline PDF Sections 1-3
M-3A: Energy Management System (EMS) Model Updates & Quality Assurance (QA) WEB | Current | Redline PDF
M-10: Pre-Scheduling Operations WEB | Current | Redline PDF
M-11: Energy & Ancillary Services Market Operations WEB | Current | Redline PDF
M-12: Balancing Operations WEB | Current | Redline PDF
M-13: Emergency Operations WEB | Current | Redline PDF Section 5
M-14D: Generator Operational Requirements WEB | Current | Redline PDF Sections 1-4, 6-11
M-36: System Restoration WEB | Current | Redline PDF
M-37: Reliability Coordination WEB | Current | Redline PDF
M-38: Operations Planning WEB | Current | Redline PDF
M-39: Nuclear Plant Interface Coordination WEB | Current | Redline PDF
M-40: Certification & Training Requirements WEB | Current | Redline PDF

Informational Notices
Notification Regarding Communication of Member Confidential Information During Operations PDF