Markets & Operations

Ancillary Services

Ancillary services help balance the transmission system as it moves electricity from generating sources to ultimate consumers. PJM operates several markets for ancillary services: the Synchronized Reserve Market, the Non-Synchronized Reserve Market, the Day-Ahead Scheduling Reserve Market and the Regulation Market. Learn more about ancillary services at the Learning Center.

Ancillary Service Market Results

Date
2015 XLS
4.15.2015
2014 XLS
1.8.2015
2013 | 2012 XLS
4.29.2014

Synchronized Reserve

Date
Mid-Atlantic-Dominion Subzone Bus and Resource List - Effective 5.20.2015 XLS
5.20.2015
Communication of Synchronized Reserve Quantities to Resource Owners PDF
5.6.2015
Historical Events XLS - latest event 4.24.2015
4.29.2015
Communication Process for Consideration of Some Resources for Tier 1 PDF
2.17.2015
Modification to Synchronized Reserve Market to Better Reflect the Operating Characteristics of Participating Generating Unites PDF
7.1.2013
Optional Designation of Tier2 Demand Response as a Flexible eMKT Enhancement PDF
6.19.2013

Zone Preliminary Billing Data

 
ComEd Synchronized Reserve
Day-Ahead Scheduling Reserve
Dominion Synchronized Reserve
Mid-Atlantic Synchronized Reserve
Non-Synchronized Reserve
Preliminary Synchronized Reserve
RTO Synchronized Reserve
Western Synchronized Reserve

Market-Based Regulation

Date
RTO Regulation Signal Data ZIP (483MB)
8.26.2014
Regulation Signal Data - June 2014 XLS
8.21.2014
Make Whole Percentages: 2010 to 2012 XLS
6.21.2013
Make Whole Percentages: 2011 | 2012 XLS  6.3.2013
eMKT External Interface Specification Guide - Revision 42 XLS
2.9.2015
eMKT XML Schema XSD
1.29.2015
Storage Regulation Two Part Cost Based Offer Effective:  7.1.20147.21.2014 XLS
7.21.2014

eMKT Historical Market Data

2015 XLS
4.15.2015
2014 XLS
1.8.2015
2013 | 2012 XLS
3.18.2014

Regulation Self Test Signals

 
Normalized Dynamic and Traditional Regulation Signals - May 2014 XLS
8.21.2014
Normalized Signal Test: RegARegD CSV
8.20.2014
Performance Score Template XLS
8.14.2014
Description of Regulation Signals PDF
12.16.2013
40 Minute Performance Score Template - Updated to Reflect August MRC Changes XLS
10.9.2013

Zone Preliminary Billing Data

 
ComEd Regulation Zone (Pre-October 2004)
Mid-Atlantic Regulation Zone
PJM Regulation Zone
Western Regulation Zone

Black Start Service

Revenue Requirements  

Day-Ahead Scheduling Reserve

Seasonal Conditional Demand Factor for DASR RequirementPDF  

Contact PJM

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(610) 666-8980
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Training

How ancillary services work in PJM
Upcoming Training
Demand Response
Generation 301

Tools

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eMKT

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Opportunity Cost Calaculator

eDART

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Training Presentations

Manuals

 
M-10: Pre-Scheduling Operations
CurrentRedline PDF Section 2
M-11: Energy & Ancillary Services Market Operations 
CurrentRedline PDF Section 4
M-12: Balancing Operations 
CurrentRedline PDF Section 4
M-14D: Generator Operational Requirements 
CurrentRedline PDF Section 10
M-15: Cost Development Guidelines
CurrentRedline PDF Sections 2-11        
M-27: Open Access Transmission Tariff Accounting 
Current | Redline PDF Section 7
M-28: Operating Agreement Accounting
Current | Redline PDF Sections 4-7           
M-36: System Restoration 
Current | Redline PDF All Sections