Markets & Operations

Daily Real-Time LMP

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The 'summary.txt' file below contains hourly aggregate real-time locational marginal pricing (LMP) for the last 7 days.

The 'Date.csv' files contain hourly LMPs in Eastern Prevailing Time (EPT), for all PJM bus locations, including aggregates.

Load-weighted average transmission zone and residual aggregate prices are estimates only. Transmission zone prices and residual aggregate prices used in PJM accounting are not final until five PJM business days after the end of the month.

Monthly real-time and day-ahead LMPs are used for monthly billing.

Archived Notices

Pursuant to section 1.10.8 (e) of Attachment K of the PJM Tariff and Schedule 1 of the Operating Agreement, PJM is providing notice that there was an issue with the posted Real-Time LMPs in hour-ending 9 on September 23rd, 2016. Specifically, PJM identified an issue with calculation of distribution factors for the Church-New Meredith 69kV l/o 230/138.Milford.AT20 constraint that incorrectly impacted LMPs. The updated Real-Time LMP csv file, labeled “20160923_updated.csv”, is now available.

PJM has reposted real-time LMPs for April 15th, 16th and 17th, 2016. The new files are titled “20160415_updated.csv”, “20160416_updated.csv”, and “20160417_updated.csv”. Specifically, PJM corrected an issue related to sub-optimal bus replacements for the following buses. The posting of the original file has been maintained as well.

BAGLEY 34 KV 230-1LD
BAGLEY 34 KV 230-2LD
BAGLEY 34 KV KINGVLSP

Use Data Miner to access the data below, and other markets and operations data.

PJM has reposted real-time LMPs for January 13th, January 14th, January 15th and January 16th of 2017. The new files are titled “20170113_updated.csv”, “20170114_updated.csv”, “20170115_updated.csv”, and “20170116_updated.csv”. Specifically, PJM corrected an issue related to marginal loss calculation for the listed below pnodes. Posting of the original files have been maintained as well:

PNODEID NAME TYPE
1218914042
WOODBRDG18 KV S1
BUS
1218914043
WOODBRDG18 KV CT-1A
BUS
1218901593
WOODBRDG18 KV SS-1A LD
BUS
1318632590
WOODBRIDGE CC
AGGREGATE

If you have any questions regarding this reposting, please contact Customer Service at (866) 400-8980.