Tariff Clarifications: Extended Day-Ahead Market and Day-Ahead Market Enhancements meeting on 12/3/25

In connection with other implementation work underway, the California ISO will hold a public stakeholder call on Dec. 3, 2025, to discuss a series of clarifications in connection with implementation of the day-ahead market enhancements (DAME) and the extended day ahead market (EDAM) tariff.  

This meeting will be recorded, and the video file will be posted on the initiative webpage for a limited time. The recording is for informational and convenience purposes only, and any related transcriptions should not be reprinted without the ISO’s permission.

A consolidated version of the DAME/EDAM tariff as accepted by the Federl Energy Regulatory Commission is available on the tariff webpage under pending tariff changes.

A matrix describing each draft tariff clarification and providing a rationale for each proposed revisions is available on the initiative webpage.

Please submit written comments on the draft tariff language by end of day Nov. 18, 2025, through the ISO’s commenting tool using the link on the process webpage