The ISO performs a recurring tariff clarifications filing to address minor clarifications or updates in the tariff. These tariff clarifications are intended to correct typographical errors, better align definitions and internal section references, and improve section titles, as well as remove outdated language or processes previously addressed by the ISO. This process does not develop new policy.
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Web meeting |
https://youtu.be/wzRtqPOm1wQ https://stakeholdercenter.caiso.com/InitiativeDocuments/Presentation-Tariff-Revisions-and-Redlines-Extended-Day-Ahead-Market-EDAM-and-Day-Ahead-Market-Enhancements-DAME-Jan-20-26.pdf https://stakeholdercenter.caiso.com/InitiativeDocuments/Word-Document-Second-revision-Extended-Day-Ahead-Market-Enhancements-EDAM-and-Day-Ahead-Market-Enhancements-DAME-Tariff-Clarification-Matrix-Jan-9-2026.docx https://stakeholdercenter.caiso.com/InitiativeDocuments/PDF-Second-revision-Extended-Day-Ahead-Market-Enhancements-EDAM-and-Day-Ahead-Market-Enhancements-DAME-Tariff-Clarification-Matrix-Jan-9-2026.pdf https://stakeholdercenter.caiso.com/InitiativeDocuments/Word-document-Second-revision-Extended-Day-Ahead-Market-Enhancements-EDAM-and-Day-Ahead-Market-Enhancements-DAME-Tariff-Clarification-Redlines-Jan-9-2026.docx https://stakeholdercenter.caiso.com/InitiativeDocuments/PDF-Second-revision-Extended-Day-Ahead-Market-Enhancements-EDAM-and-Day-Ahead-Market-Enhancements-DAME-Tariff-Clarification-Redlines-Jan-9-2026.pdf | |
Web meeting |
https://stakeholdercenter.caiso.com/InitiativeDocuments/Revised-tariff-clarification-matrix-Extended-Day-Ahead-Market-Enhancements-and-Day-Ahead-Market-Enhancements-Tariff-Clarification-Matrix-DEC-18-2025.pdf https://stakeholdercenter.caiso.com/InitiativeDocuments/Revised-tariff-clarification-matrix-Extended-Day-Ahead-Market-Enhancements-and-Day-Ahead-Market-Enhancements-Tariff-Clarification-Redlines-DEC-18-2025.pdf https://youtu.be/a3uyGb-ZCk8 https://stakeholdercenter.caiso.com/InitiativeDocuments/Presentation-Tariff-Clarifications-Extended-Day-Ahead-Market-EDAM-and-Day-Ahead-Market-Enhancements-DAME-Dec-3-25.pdf https://stakeholdercenter.caiso.com/InitiativeDocuments/Extended-Day-ahead-Market-Enhancements-Day-Ahead-Market-Enhancements-Tariff-Clarification-Matrix-Nov-4-2025.docx | View comments |
Web meeting |
https://youtu.be/qcFOh6O0Pes
Video - 2025 Summer Tariff Clarification Filing - Jul 11, 2025 07/21/2025
Draft Tariff Matrix - Tariff Clarifications Summer 2025 - Jul 02, 2025 (Revised on Jul 03, 2025) 07/02/2025
Presentation - Tariff Clarifications Summer 2025 - Jul 11, 2025 07/09/2025
CAISO Response to Comments - Aug 06, 2025 08/06/2025
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https://stakeholdercenter.caiso.com/InitiativeDocuments/Response-to-Stakeholder-Comments-Tariff-Clarifications-Spring-2025-Apr1-2025.pdf
Response to Stakeholder Comments - Tariff Clarifications Spring 2025 - Apr 01, 2025 04/01/2025
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Web meeting |
https://www.youtube.com/watch?v=IjRunlayLUc&feature=youtu.be
Video - Tariff Clarifications Spring 2025 - Draft Tariff Language - Mar 28, 2025 04/28/2025
Presentation - Tariff Clarifications Spring - 2025 - Mar 28, 2025 03/27/2025
Draft Tariff Matrix - Tariff Clarifications Spring 2025 - Mar 19, 2025 03/19/2025
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