About PJM

Energy Markets

This section answers frequently asked questions about market participants establishing a price for electricity by matching supply and demand.

FAQs

More Questions

Question:

What is the Regulation Service market?


Answer:

Regulation Service corrects for short-term changes in electricity use that might affect the stability of the power system. It helps match generation and load and adjusts generation output to maintain the desired frequency. Load-serving entities (LSEs) can meet their obligation to provide regulation to the grid by using their own generation, by purchasing the required regulation under contract with another party or by buying it on the Regulation Market. Section 3 of Manual #11 goes into detail concerning the structure, rules, and regulations of the PJM Regulation Market.

Currently participating in PJM’s Regulation Market are several energy storage resources, including a 32-megawatt battery-storage facility and a group of plug-in hybrid electric vehicles (PHEVs). These resources are paid for providing frequency regulation when called upon by PJM.


  1. What are Ancillary Services?
  2. What is the Regulation Service market?
  3. What are Black Start Services?
  4. What is the Synchronized Reserve Service market?
  5. What is Economic Dispatch?
  6. What is Demand Response?
  7. How do you transact in the markets?
  8. What is the definition of peak (e.g. peak demand)?

Want to learn more?

Overview

Start here for an introduction to the wholesale energy markets administered by PJM.

Energy Markets

This section answers frequently asked questions about  market participants establishing a price for electricity by matching supply and demand.

Reliability Pricing Model (RPM)/Capacity Market

Explore the details of PJM’s Reliability Pricing Model (RPM).

Auction Revenue Rights (ARRs)

Learn the Auction Revenue Rights (ARRs) basics, how to acquire ARRs and more.

Financial Transmission Rights (FTRs)

Explore the details of PJM’s Financial Transmission Rights (FTRs).

Enhanced Energy Scheduler (EES)

These frequently asked questions about PJM’s Enhanced Energy Scheduler (EES) program are applicable to any EES user that submits day-ahead or real-time energy transactions.

Data Miner

The Data Miner tool provides a new method for requesting specific public data through the website as well as a method for making system-to-system requests (via Web Services).

InSchedule

InSchedule (formerly known as eSchedules) is an Internet application used by power marketers, load serving entities and generation owners in PJM to submit their internal PJM energy schedule data. All PJM internal transactions, including load and generation interchange adjustment modeling and implicit internal Spot Market schedules are handled through the PJM InSchedule system.