Markets & Operations

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


Forecasted Generation Outages
Wind Generation
Wind Power Graph
Generation & Extra High Voltage Losses
Capacity by Fuel Type: 201820172016 | 2015 | 2014 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 in the Member Community
Generation Transfer Request User Guide PDF


Off-Cost Operations
Outage Analysis Reports (for transmission and reliability personnel only)This is Critical Energy Infrastructure Information (CEII) material that requires an access approval. - requires additional access
Note: view details PDF regarding access to this CEII content.
Transmission Facilities This is Critical Energy Infrastructure Information (CEII) material that requires an access approval. - requires additional access

RTO Transfer Limit & Flows

Data Miner 2


Top 10 All Time Summer/Winter Peak Load Days XLS
Load Forecasts  
Hourly Load: Preliminary | Estimated | Metered


Actual/Schedule Summary Report
Real-Time Scheduled Interchange

Contact PJM

Member Community

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

New to System Operations?

Transmission Zones PDF (2.45MB)
Interregional Data Map


How system operations work in PJM
Find Upcoming Training
Operator Seminar
Generation Operator Fundamentals
Fundamentals of Transmission Operations
Power System Fundamentals
Conservative Operations
Load Forecasting & Weather
Transmission Planning, Modeling & Energization


Data Miner 2 - access historical data
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Data Viewer - access real-time data
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M-1: Control Center & Data Exchange Requirements
Current | Redline PDF
M-3: Transmission Operations
CurrentRedline PDF Sections 1-3
M-3A: Energy Management System (EMS) Model Updates & Quality Assurance (QA)
Current | Redline PDF
M-10: Pre-Scheduling Operations
CurrentRedline PDF
M-11: Energy & Ancillary Services Market Operations
Current | Redline PDF
M-12: Balancing Operations
Current | Redline PDF
M-13: Emergency Operations
CurrentRedline PDF Section 5
M-14D: Generator Operational Requirements
CurrentRedline PDF Sections 1-4, 6-11
M-36: System Restoration
Current | Redline PDF
M-37: Reliability Coordination
CurrentRedline PDF
M-38: Operations Planning
Current | Redline PDF
M-39: Nuclear Plant Interface Coordination
Current | Redline PDF
M-40: Certification & Training Requirements
Current | Redline PDF