EDAM and EDAM ISO BAA PR Market Participant Access Charge Recovery Submission: Meeting on 9/2/25

The California ISO invites all market participants that have registered for the Extended Day-Ahead Market (EDAM) and EDAM CAISO Balancing Authority Area (BAA) Participation Rules (PR) Market Simulation starting on Sept. 2 to complete Access Charge submissions. 

Access Charge for Revenue Recovery Process:

1. Market Participants Submission
   • EDAM and EDAM ISO BAA PR Market Participants to submit the following into the Day Ahead Market by Sept. 12, 2025: 1. Annually Recovery in $, 2. Components 1, 2, and 3 to the EDAM Access Charge Recoverable Revenue Amount, 3. Transmission Access Cost (TAC), 4. And True-up value ($), Bounded Cap ($), Transmission rates ($/MWh), Ratio (%), and calculation via the new template.
   • Note: No attestation needed for the purposes of Market Simulation, attestation shall be required for Parallel Operations and Production
2. ISO Settlement
   • ISO to publish EDAM Access Charge Revenue Recovery Public Values and EDAM Access Charge Rates to CAISO.com by Sept. 19, 2025.
   • Annual True-up for Revenue Recovery assessed for Settlement purposes 

Refer to the following resources posted to CAISO.com under the Release Planning Page for more information:

• EDAM Structured Market Simulation Scenarios,
• Submission Procedure,
• Submission Template,  
• Settlements BPM Walkthrough Presentation,
• Settlements BPM Walkthrough Video,
• Settlements Phase 1 Charge Codes