CAISO Readies EDAM Tariff Changes

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CAISO Readies EDAM Tariff Changes as New Market Nears Opening

Existing Intertie Scheduling Approach ‘Largely Preserved’

Dec 21, 2025 | David Krause

CAISO is proposing a set of tariff changes for submission to FERC early in 2026 to help ease participants into the ISO’s new Extended Day-Ahead Market.

CAISO Board of Governors EDAM Energy Market Resource Adequacy WEIM Governing Body

KeywordsCAISO Board of Governors CAISO Extended Day-Ahead Market (EDAM)California Independent System Operator (CAISO)Federal Energy Regulatory Commission (FERC)Intertie scheduling resource adequacy (RA)WEM Governing Body

David Krause

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