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We keep a close watch on our markets

The ISO Department of Market Monitoring (DMM) keeps a close watch on the efficiency and the effectiveness of the California ISO markets. We provide recommendations for market design and operational inputs, and review potential detrimental market behavior.

Mission statement

To provide independent oversight and analysis of the California ISO markets for the protection of consumers and Market Participants by the identification and reporting of market design flaws, potential market rule violations, and market power abuses.

Annual and quarterly reports
We provide annual and quarterly reports on market issues and performance.

Market monitoring reports and presentations

Analysis materials produced by the ISO market monitoring staff regarding performance of the markets.

Special reports and presentations

Board of Governors reports and presentations
We provide updates to the California ISO Board of Governors.

Western Energy Imbalance Market resource sufficiency evaluation reports

Western Energy Imbalance Market transition reports

Regulatory filings
We file comments in key federal and state regulatory proceedings.

Comments on stakeholder processes
We actively participate and submit comments in stakeholder processes.

ISO tariff reference
The relevant sections discussing ISO Market Monitoring can be found in Appendix P of the ISO Tariff. 

Market monitoring archive

Market Monitoring Hotline

Call (800) 644-6409 or use this online form to ask questions or report suspected abuses in the wholesale electricity markets, including ISO ancillary services, congestion management, or real-time spot markets.

All information received will be kept strictly confidential, and used only to investigate complaints of market abuse. Reports may be made anonymously.

Suspected abuses may also be reported to the Federal Energy Regulatory Commission Enforcement Hotline.
For complaints about retail electric customer service, please contact the local utility or California Public Utilities Commission Consumer Affairs at (800) 649-7570.

Market Monitoring Feedback – Do you have feedback or comments for the Dept. of Market Monitoring?

The Department of Market Monitoring and the Oversight Committee are interested in your feedback and suggestions regarding the core functions and service provided by DMM. Responses will remain anonymous as providing contact information is optional.
Click here to submit your comments and feedback.

For more information
ISO Department of Market Monitoring