Markets & Operations

Data Miner

Data Miner provides members and non-members with easier, faster and more reliable access to PJM's public data. The tool features a robust architecture, monitoring of data quality, and the ability to search and filter data. Automatic queries can be received with a PJM account through the Data Miner application program interfaces (API).

To learn about upcoming technical changes to Data Miner, please visit PJM’s Tech Change Forum.

If you cannot find the data you are looking for, visit the Data Availability page.

Data Miner
Release Notes

Acceptable Terms of Use PDF

PJM Members may not exceed 600 data connections per minute. Non-members may not exceed 6 data connections per minute.

Information and data contained in Data Miner is for internal use only and redistribution of information and or data contained in or derived from Data Miner is strictly prohibited without an active PJM Membership. A minimum level of Associate Membership is required.

Reference Materials

Hourly Load Area Mapping XLS  4.17.2023
Marginal Emissions Primer PDF  3.16.2022
Tech Change Community  
eDataFeed to Data Miner Feeds List XLS   3.24.2021

User Guides

API PDF 9.22.2023
Historic Data PDF 6.26.2020
Getting Started PDF  3.12.2019


Tech Change Community  7.28.2020