Markets & Operations

Data Directory

This page provides a streamlined search for data posted on pjm.com. Data Miner contains most of the data listed in this directory.

A listing of one-time PJM data postings is available on the One Time Data Requests page.

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Title RPM Auction Results
Description This page contains the results of the RPM auctions for each delivery year as well as well as other reports and modeling information.
Frequency n/a
Category RPM
Title Operational Data
Description This is a live, point-in-time posting of LMPs for a set of hubs, zones, and aggregates as well as transfer and load information.
Frequency 5 minutes
Category Operational Data
Title 7-Day Load Forecast
Description This page has PJM's most recent load forecast, by region.
Frequency Hourly
Category Real-Time Energy Market
Title Interregional Data Map
Description The Interregional Data Map shows the flow of electricity into and out of PJM. The details are zone based showing the flow, Interfaces, prices and the real-time load (MW).
Frequency 5 minutes
Category Real-Time Energy Market
Title Marginal Fuel Data
Description Data on the fuel types of marginal units in the PJM Real-time Energy Market. Marginal units are the units that set the Locational Marginal Price in each five minute interval. When there is congestion, there can be more than one marginal unit during a five-minute period. The data are at the hourly level. The share of each fuel in each hour is calculated based on the number of five minute intervals that a unit burning each fuel type is marginal or jointly marginal.
Frequency Monthly
Category Real-Time Energy Market
Title Marginal Value of Real-Time Transmission Constraints
Description These files contain dates and times for binding constraints along with the marginal value, also called the "shadow price," for those constraints in the Real-Time Energy Market.
Frequency Annual
Category Real-Time Energy Market
Title Monthly Real-Time Locational Marginal Pricing
Description Hourly LMPs for all pricing points in PJM. Each file contains one month's worth of data. Separate files are posted for Real Time and Day Ahead.
Frequency Monthly
Category Real-Time Energy Market
Title Off Cost Operations
Description This report gives the location, time and reason for calls for off cost or "reactive" operations to maintain the voltages needed for system stability. It is updated monthly.
Frequency Monthly
Category Real-Time Energy Market
Title Preliminary Hourly Load Data
Description Preliminary integrated hourly loads are calculated from raw telemetry data and are approximate.
Frequency Daily
Category Real-Time Energy Market
Title Real-Time Transmission Constraints
Description This file contains the dates and times when transmission constraints occurred in the Real-Time Energy Market.
Frequency Daily
Category Real-Time Energy Market
Title Uplift Credits by Zone
Description These files contain information on daily uplift credits by zone.
Frequency Monthly
Category Real-Time Energy Market
Title Wind Generation
Description This posting shows the actual hourly wind generation in the PJM RTO.
Frequency Daily
Category Real-Time Energy Market
Title FTR Model Information
Description Page containing several files on the FTR model.
Frequency n/a
Category FTR
Title Revenue Adequacy Posting
Description This file contains historical data on the FTR revenue adequacy.
Frequency n/a
Category FTR
Title Reactive Supply and Voltage Control Revenue Requirements
Description In accordance with the FERC acceptance of Docket No. ER08-339 on 2/13/2008, the files contain PJM generators’ annual reactive revenue requirements and are being posted on the PJM Web site rather than being included in the PJM Open Access Transmission Tariff Schedule 2. This is intended to reduce the costs and administrative burden of repeatedly filing PJM tariff revisions for additions, deletions and changes to reactive revenue requirements. Current and historical files are listed below with the file name reflecting the effective date. Notes are contained in each file to identify any retroactively effective revenue requirements.
Frequency n/a
Category Reactive Supply
Title Preliminary Operating Reserves Rates
Description The daily billing rates for PJM operating reserves. These values are for informational purposes only and are subject to change through the fifth business day of the following month. The daily rate for Day-Ahead operating reserves is in dollars per megawatt hour of demand, decrement and export transactions cleared for that day in the PJM Day-Ahead Energy Market. The daily rate for balancing operating reserves is in dollars per megawatt hour of Real-Time Energy Market deviations from scheduled amounts cleared for that day in the PJM Day-Ahead Energy Market.
Frequency Daily
Category Operating Reserves
Title Black Start Revenue Requirements
Description PJM generators’ annual black start revenue requirements as referenced in the PJM Manuals.
Frequency n/a
Category Ancillary Services
Title Day-Ahead Scheduling Reserve Preliminary Billing Data
Description The monthly files contain hourly billing data for the Day-Ahead Scheduling Reserve Market. These values are for informational purposes only and are subject to change once actual settlement calculations are performed beginning in the October 2008 billing cycle. Hourly data includes: Day-Ahead Scheduling Reserve Market Clearing Price in $/MWh of day-ahead scheduling reserve provided; the total MWh of day-ahead scheduling reserve awarded in the Day-Ahead Scheduling Reserve Market; the RTO day-ahead scheduling reserve requirement in total MWh; the total day-ahead scheduling reserve obligation the total MW based on real-time load ratio share; and estimated day-ahead scheduling reserve charge rate ($/MW of load).
Frequency Daily
Category Ancillary Services
Title Regulation Preliminary Billing Data
Description The monthly files contain hourly billing data for the PJM Regulation Market. These values are for informational purposes only and are subject to change through the fifth business day of the following month. Hourly data includes: PJM Regulation Market Clearing Price (RMCP) in $/MWh of regulation provided; additional payments made to PJM Regulation Market pool-scheduled regulation providers to ensure that their offer plus opportunity costs are made whole; the total MWh of regulation purchased in the PJM Regulation Market; the total MWh of regulation self-scheduled in the PJM Regulation Market; and the total MWh of regulation pool-scheduled in the PJM Regulation Market.
Frequency Daily
Category Ancillary Services
Title RFC Synchronized Reserve Zone Preliminary Billing Data
Description The monthly files contain hourly billing data for the ReliabilityFirst Corporation (RFC) Synchronized Reserve Zone Market. These values are for informational purposes only and are subject to change through the fifth business day of the following month. Hourly data for each reserve zone includes: RFC Synchronized Reserve Zone Synchronized Reserve Market Clearing Price (SRMCP) in $/MWh of synchronized reserve provided; RFC Synchronized Reserve Zone total MWh of Tier 1 synchronized reserve applied to obligations estimated prior to the operating hour; RFC Synchronized Reserve Zone total MWh of Tier 1 synchronized reserve provided in excess of obligations; RFC Synchronized Reserve Zone total unrecovered opportunity cost payments made to Tier 2 resources assigned as part of the clearing process; RFC Synchronized Reserve Zone total unrecovered opportunity cost payments made to Tier 2 resources assigned during the operating hour; RFC Synchronized Reserve Zone total MWh of synchronized reserve purchased in the market; and RFC Synchronized Reserve Zone total Tier 1 Synchronized Reserve credits.
Frequency Daily
Category Ancillary Services
Title Actual/Schedule Summary Report
Description This spreadsheet contains actual, scheduled, and inadvertent flows by tie line by hour. It is posted annually.
Frequency Weekly
Category Operations
Title Capacity by Fuel Type
Description This document shows the breakdown of PJM generation capacity aggregated by fuel type.
Frequency Annual
Category Operations
Title Estimated Hourly Load Data
Description Integrated hourly loads are calculated for each PJM Region from raw telemetry data and are approximate. The load data is calculated and posted when all transaction information has been confirmed with the market participants and the external control areas.
Frequency Weekly Tuesday and Friday
Category Operations
Title PJM Forecasted Generation Outages
Description This file contains the megawatt totals of forecasted generation outages for the next three months. An expected megawatt total is listed for each day for the next three months, and broken down by sub-regions in PJM.
Frequency Daily
Category Operations
Title Historical Metered Load Data
Description The "Historical Load Data" report summarizes the MW-Hour net energy for load as consumed by the service territories within the PJM RTO. Data is supplied by the respective PJM electric distribution companies (EDC) of PJM, and represents the best quality level of metered load within their zones. The report contains company submitted values, with PJM generated estimated values substituted where company data is unavailable.
Frequency Monthly
Category Operations
Title Operations Summary
Description This data contains capacity and reserve status for the current day forecasted peak hour. Summaries of the previous day's load and dispatch rates are also provided. These summaries are based on data compiled at 0600 hours. Each file has a time stamp to show when it was updated.
Frequency Daily
Category Operations
Title Real-Time Scheduled Interchange
Description These files contain the hourly PJM Net Tie Schedule for each day, as of the time posted.
Frequency Daily
Category Operations
Title Top 10 All Time Summer/Winter Peak Load Days
Description This file shows the top 10 all-time peak load days and respective MW amounts for the Summer and Winter seasons. The load data is sourced from the Historical Metered Load Data.
Frequency Varies by year
Category Operations
Title Daily cleared INCs, DECs, and UTCs
Description Daily MWh volume of cleared INCs, DECs and UTC transactions in the PJM Day-Ahead Energy Market.
Frequency Weekly
Category Day-Ahead Energy Market
Title Daily Day-Ahead Locational Marginal Pricing
Description These files contain hourly Day-Ahead Energy Market locational marginal pricing (LMP) data in Eastern Prevailing Time (EPT) for all bus locations, including aggregates, in comma separated variable format.
Frequency Daily
Category Day-Ahead Energy Market
Title Day-Ahead Transmission Constraints
Description
Frequency Varies by Year
Category Day-Ahead Energy Market
Title Hourly Day-Ahead Demand Bid Data
Description These files contain the hourly day-ahead total demand in CSV format.
Frequency Daily
Category Day-Ahead Energy Market
Title LMP Model information
Description General page with several postings on the LMP model, aggregate and hub definitions, etc.
Frequency n/a
Category Day-Ahead Energy Market
Title Marginal Value of Day-Ahead Transmission Constraints
Description
Frequency Varies by Year
Category Day-Ahead Energy Market
Title Monthly Day-Ahead Locational Marginal Pricing
Description These files contain hourly LMPs for all pricing points in PJM. Each file contains one month's worth of data. Separate files are posted for Real Time and Day Ahead.
Frequency Monthly
Category Day-Ahead Energy Market
Title Monthly FTR Zonal LMP
Description These files contain the monthly FTR Zonal LMPs in CSV format. FTR Zonal LMPs are based on peak load apportionments and are subject to change prior to the fifth PJM business day of the following month.
Frequency Weekly (or more)
Category Day-Ahead Energy Market
Title Nodal Reference Prices for Virtual Bid Screening
Description These files provide reference prices for the different pricing nodes in the Day-Ahead Energy Market. These prices are used when performing credit screening for virtual bids in the Day-Ahead Energy Market.
Frequency n/a
Category Day-Ahead Energy Market
Title Annual FTR Auction Bid Data
Description These files contain the bids into the PJM Annual FTR Auction.
Frequency Monthly 6 Month Lag
Category Historical Bid Data
Title Daily Energy Market Offer Data
Description These files contain the generator offers into the PJM Daily Energy Market. Successful offers are committed to meet PJM energy demand for the indicated day. The filename indicates the date for which the offers were effective.
Frequency Monthly 4 Month Lag
Category Historical Bid Data
Title Historical Load Forecasts
Description These files contain load forecasts made by PJM. Each operating day has eight forecasts - four made the day prior, and four made during the operational day.
Frequency n/a
Category Historical Bid Data
Title Historical Generation and EHV Losses
Description The files contain the hourly PJM Generation and EHV Loss data for each day. The data is in CSV (comma separated values) format.
Frequency Daily with a two week lag
Category Historical Bid Data
Title Hourly Day-Ahead Demand Bid Data
Description These files contain the Aggregated PJM Hourly Day-Ahead Demand Bid data. Each file contains the aggregated PJM hourly Day-Ahead Bids for each day in the indicated month.
Frequency Monthly 6 Month Lag
Category Historical Bid Data
Title Hourly Day-Ahead Inc and Dec Bid Data
Description These files contain the virtual bids into the PJM Daily Energy Market. The bids are aggregated by pricing point, by bid type, by hour, and by day.
Frequency Monthly 4 Month Lag
Category Historical Bid Data
Title Monthly Demand Side Response Bid Data
Description These files contain the Demand Side Response Bids for a random day during the month . The bids are aggregated by site, and by bid type for Day Ahead and Real Time. The file also contains the amount of registered MW by zone. The identity of each DSR site is market sensitive information which cannot be revealed by PJM.
Frequency Monthly 6 Month Lag
Category Historical Bid Data
Title Monthly EFORd Data
Description These files contain the monthly EFORd ratings by fuel type for all units on the PJM system.
Frequency Annual
Category Historical Bid Data
Title Monthly FTR Auction Bid Data
Description These files contain the bids into the PJM Monthly FTR Market. Successful bids are awarded FTRs for the indicated one-month period.
Frequency Monthly 6 Month Lag
Category Historical Bid Data
Title PJM Daily Generation Capacity
Description These files contain the PJM available generator capacity aggregated for the PJM system by hour and by day.
Frequency n/a
Category Historical Bid Data
Title Description Frequency Category
RPM Auction Results This page contains the results of the RPM auctions for each delivery year as well as well as other reports and modeling information. n/a RPM
Operational Data This is a live, point-in-time posting of LMPs for a set of hubs, zones, and aggregates as well as transfer and load information. 5 minutes Operational Data
7-Day Load Forecast This page has PJM's most recent load forecast, by region. Hourly Real-Time Energy Market
Interregional Data Map The Interregional Data Map shows the flow of electricity into and out of PJM. The details are zone based showing the flow, Interfaces, prices and the real-time load (MW). 5 minutes Real-Time Energy Market
Marginal Fuel Data Data on the fuel types of marginal units in the PJM Real-time Energy Market. Marginal units are the units that set the Locational Marginal Price in each five minute interval. When there is congestion, there can be more than one marginal unit during a five-minute period. The data are at the hourly level. The share of each fuel in each hour is calculated based on the number of five minute intervals that a unit burning each fuel type is marginal or jointly marginal. Monthly Real-Time Energy Market
Marginal Value of Real-Time Transmission Constraints These files contain dates and times for binding constraints along with the marginal value, also called the "shadow price," for those constraints in the Real-Time Energy Market. Annual Real-Time Energy Market
Monthly Real-Time Locational Marginal Pricing Hourly LMPs for all pricing points in PJM. Each file contains one month's worth of data. Separate files are posted for Real Time and Day Ahead. Monthly Real-Time Energy Market
Off Cost Operations This report gives the location, time and reason for calls for off cost or "reactive" operations to maintain the voltages needed for system stability. It is updated monthly. Monthly Real-Time Energy Market
Preliminary Hourly Load Data Preliminary integrated hourly loads are calculated from raw telemetry data and are approximate. Daily Real-Time Energy Market
Real-Time Transmission Constraints This file contains the dates and times when transmission constraints occurred in the Real-Time Energy Market. Daily Real-Time Energy Market
Uplift Credits by Zone These files contain information on daily uplift credits by zone. Monthly Real-Time Energy Market
Wind Generation This posting shows the actual hourly wind generation in the PJM RTO. Daily Real-Time Energy Market
FTR Model Information Page containing several files on the FTR model. n/a FTR
Revenue Adequacy Posting This file contains historical data on the FTR revenue adequacy. n/a FTR
Reactive Supply and Voltage Control Revenue Requirements In accordance with the FERC acceptance of Docket No. ER08-339 on 2/13/2008, the files contain PJM generators’ annual reactive revenue requirements and are being posted on the PJM Web site rather than being included in the PJM Open Access Transmission Tariff Schedule 2. This is intended to reduce the costs and administrative burden of repeatedly filing PJM tariff revisions for additions, deletions and changes to reactive revenue requirements. Current and historical files are listed below with the file name reflecting the effective date. Notes are contained in each file to identify any retroactively effective revenue requirements. n/a Reactive Supply
Preliminary Operating Reserves Rates The daily billing rates for PJM operating reserves. These values are for informational purposes only and are subject to change through the fifth business day of the following month. The daily rate for Day-Ahead operating reserves is in dollars per megawatt hour of demand, decrement and export transactions cleared for that day in the PJM Day-Ahead Energy Market. The daily rate for balancing operating reserves is in dollars per megawatt hour of Real-Time Energy Market deviations from scheduled amounts cleared for that day in the PJM Day-Ahead Energy Market. Daily Operating Reserves
Black Start Revenue Requirements PJM generators’ annual black start revenue requirements as referenced in the PJM Manuals. n/a Ancillary Services
Day-Ahead Scheduling Reserve Preliminary Billing Data The monthly files contain hourly billing data for the Day-Ahead Scheduling Reserve Market. These values are for informational purposes only and are subject to change once actual settlement calculations are performed beginning in the October 2008 billing cycle. Hourly data includes: Day-Ahead Scheduling Reserve Market Clearing Price in $/MWh of day-ahead scheduling reserve provided; the total MWh of day-ahead scheduling reserve awarded in the Day-Ahead Scheduling Reserve Market; the RTO day-ahead scheduling reserve requirement in total MWh; the total day-ahead scheduling reserve obligation the total MW based on real-time load ratio share; and estimated day-ahead scheduling reserve charge rate ($/MW of load). Daily Ancillary Services
Regulation Preliminary Billing Data The monthly files contain hourly billing data for the PJM Regulation Market. These values are for informational purposes only and are subject to change through the fifth business day of the following month. Hourly data includes: PJM Regulation Market Clearing Price (RMCP) in $/MWh of regulation provided; additional payments made to PJM Regulation Market pool-scheduled regulation providers to ensure that their offer plus opportunity costs are made whole; the total MWh of regulation purchased in the PJM Regulation Market; the total MWh of regulation self-scheduled in the PJM Regulation Market; and the total MWh of regulation pool-scheduled in the PJM Regulation Market. Daily Ancillary Services
RFC Synchronized Reserve Zone Preliminary Billing Data The monthly files contain hourly billing data for the ReliabilityFirst Corporation (RFC) Synchronized Reserve Zone Market. These values are for informational purposes only and are subject to change through the fifth business day of the following month. Hourly data for each reserve zone includes: RFC Synchronized Reserve Zone Synchronized Reserve Market Clearing Price (SRMCP) in $/MWh of synchronized reserve provided; RFC Synchronized Reserve Zone total MWh of Tier 1 synchronized reserve applied to obligations estimated prior to the operating hour; RFC Synchronized Reserve Zone total MWh of Tier 1 synchronized reserve provided in excess of obligations; RFC Synchronized Reserve Zone total unrecovered opportunity cost payments made to Tier 2 resources assigned as part of the clearing process; RFC Synchronized Reserve Zone total unrecovered opportunity cost payments made to Tier 2 resources assigned during the operating hour; RFC Synchronized Reserve Zone total MWh of synchronized reserve purchased in the market; and RFC Synchronized Reserve Zone total Tier 1 Synchronized Reserve credits. Daily Ancillary Services
Actual/Schedule Summary Report This spreadsheet contains actual, scheduled, and inadvertent flows by tie line by hour. It is posted annually. Weekly Operations
Capacity by Fuel Type This document shows the breakdown of PJM generation capacity aggregated by fuel type. Annual Operations
Estimated Hourly Load Data Integrated hourly loads are calculated for each PJM Region from raw telemetry data and are approximate. The load data is calculated and posted when all transaction information has been confirmed with the market participants and the external control areas. Weekly Tuesday and Friday Operations
PJM Forecasted Generation Outages This file contains the megawatt totals of forecasted generation outages for the next three months. An expected megawatt total is listed for each day for the next three months, and broken down by sub-regions in PJM. Daily Operations
Historical Metered Load Data The "Historical Load Data" report summarizes the MW-Hour net energy for load as consumed by the service territories within the PJM RTO. Data is supplied by the respective PJM electric distribution companies (EDC) of PJM, and represents the best quality level of metered load within their zones. The report contains company submitted values, with PJM generated estimated values substituted where company data is unavailable. Monthly Operations
Operations Summary This data contains capacity and reserve status for the current day forecasted peak hour. Summaries of the previous day's load and dispatch rates are also provided. These summaries are based on data compiled at 0600 hours. Each file has a time stamp to show when it was updated. Daily Operations
Real-Time Scheduled Interchange These files contain the hourly PJM Net Tie Schedule for each day, as of the time posted. Daily Operations
Top 10 All Time Summer/Winter Peak Load Days This file shows the top 10 all-time peak load days and respective MW amounts for the Summer and Winter seasons. The load data is sourced from the Historical Metered Load Data. Varies by year Operations
Daily cleared INCs, DECs, and UTCs Daily MWh volume of cleared INCs, DECs and UTC transactions in the PJM Day-Ahead Energy Market. Weekly Day-Ahead Energy Market
Daily Day-Ahead Locational Marginal Pricing These files contain hourly Day-Ahead Energy Market locational marginal pricing (LMP) data in Eastern Prevailing Time (EPT) for all bus locations, including aggregates, in comma separated variable format. Daily Day-Ahead Energy Market
Day-Ahead Transmission Constraints Varies by Year Day-Ahead Energy Market
Hourly Day-Ahead Demand Bid Data These files contain the hourly day-ahead total demand in CSV format. Daily Day-Ahead Energy Market
LMP Model information General page with several postings on the LMP model, aggregate and hub definitions, etc. n/a Day-Ahead Energy Market
Marginal Value of Day-Ahead Transmission Constraints Varies by Year Day-Ahead Energy Market
Monthly Day-Ahead Locational Marginal Pricing These files contain hourly LMPs for all pricing points in PJM. Each file contains one month's worth of data. Separate files are posted for Real Time and Day Ahead. Monthly Day-Ahead Energy Market
Monthly FTR Zonal LMP These files contain the monthly FTR Zonal LMPs in CSV format. FTR Zonal LMPs are based on peak load apportionments and are subject to change prior to the fifth PJM business day of the following month. Weekly (or more) Day-Ahead Energy Market
Nodal Reference Prices for Virtual Bid Screening These files provide reference prices for the different pricing nodes in the Day-Ahead Energy Market. These prices are used when performing credit screening for virtual bids in the Day-Ahead Energy Market. n/a Day-Ahead Energy Market
Annual FTR Auction Bid Data These files contain the bids into the PJM Annual FTR Auction. Monthly 6 Month Lag Historical Bid Data
Daily Energy Market Offer Data These files contain the generator offers into the PJM Daily Energy Market. Successful offers are committed to meet PJM energy demand for the indicated day. The filename indicates the date for which the offers were effective. Monthly 4 Month Lag Historical Bid Data
Historical Load Forecasts These files contain load forecasts made by PJM. Each operating day has eight forecasts - four made the day prior, and four made during the operational day. n/a Historical Bid Data
Historical Generation and EHV Losses The files contain the hourly PJM Generation and EHV Loss data for each day. The data is in CSV (comma separated values) format. Daily with a two week lag Historical Bid Data
Hourly Day-Ahead Demand Bid Data These files contain the Aggregated PJM Hourly Day-Ahead Demand Bid data. Each file contains the aggregated PJM hourly Day-Ahead Bids for each day in the indicated month. Monthly 6 Month Lag Historical Bid Data
Hourly Day-Ahead Inc and Dec Bid Data These files contain the virtual bids into the PJM Daily Energy Market. The bids are aggregated by pricing point, by bid type, by hour, and by day. Monthly 4 Month Lag Historical Bid Data
Monthly Demand Side Response Bid Data These files contain the Demand Side Response Bids for a random day during the month . The bids are aggregated by site, and by bid type for Day Ahead and Real Time. The file also contains the amount of registered MW by zone. The identity of each DSR site is market sensitive information which cannot be revealed by PJM. Monthly 6 Month Lag Historical Bid Data
Monthly EFORd Data These files contain the monthly EFORd ratings by fuel type for all units on the PJM system. Annual Historical Bid Data
Monthly FTR Auction Bid Data These files contain the bids into the PJM Monthly FTR Market. Successful bids are awarded FTRs for the indicated one-month period. Monthly 6 Month Lag Historical Bid Data
PJM Daily Generation Capacity These files contain the PJM available generator capacity aggregated for the PJM system by hour and by day. n/a Historical Bid Data