FERC Filings

PROTEST OF THE ELECTRIC POWER SUPPLY ASSOCIATION ON THE MIDWEST ISO MARKET MITIGATION MEASURES

BACKGROUND

On December 23, 2002, the MISO and Independent Market Monitor Dr. David B. Patton (IMM) jointly filed the MISO Market Mitigation Measures as Attachment S-2 to the MISO Open Access Transmission Tariff (OATT). The Mitigation Measures are based on a conduct-impact test framework and are designed to preclude abuses of market power prospectively, similar to Automated Mitigation Procedures (AMP), though the MISO tests would be administered manually, at least in the near term. The Mitigation Measures propose to distinguish between two types of transmission constrained areas and establish different mitigation thresholds for each – a Narrow Constrained Area and a Broad Constrained Area. A Narrow Constrained Area is a load pocket in which market power is generally substantial when constraints are binding. A Broad Constrained Area may experience substantial local market power during transmission constraints, but not always. As defined in the proposal, a Broad Constrained Area could be any part of the ISO footprint that is not defined as a Narrow Constrained Area.

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