Federal Energy Regulatory Commission Approves MISO's Revised Tariff

Strategic Insights -

The Federal Energy Regulatory Commission has issued a delegated order approving Midcontinent Independent System Operator, Inc.'s (MISO) revised Schedule 2 of the MISO Open Access Transmission, Energy and Operating Reserve Markets Tariff. MISO submitted the revisions on March 28, 2025, as required by Order No. 904. The filing was publicly noticed, and no protests or adverse comments were filed. As a result, the Commission has accepted the submittal for filing, effective March 29, 2025.

Key Takeaways:

  • The Federal Energy Regulatory Commission has approved MISO's revised Schedule 2 of the MISO Open Access Transmission, Energy and Operating Reserve Markets Tariff.
  • The revisions were submitted by MISO on March 28, 2025, in compliance with the requirements of Order No. 904.
  • The filing was publicly noticed, and no protests or adverse comments were filed.
  • The Commission has accepted the submittal for filing, effective March 29, 2025.
  • This action does not constitute approval of any service, rate, charge, classification, or any rule, regulation, contract, or practice affecting such rate or service provided for in the filed document(s).
  • The order constitutes final agency action, and requests for rehearing by the Commission may be filed within 30 days of the date of issuance.

Statistics:

  • Effective date: March 29, 2025
  • Filing date: March 28, 2025
  • Issuance date: October 16, 2025
  • 30-day rehearing period ends: November 15, 2025
  • Document Accession #: 20251016-3122
  • Document Content(s): ER25-1814-000.docx

Sources:

  • FERC Electric Tariff SCHEDULE 2, Reactive Supply and Voltage Control From Generation or Other (41.0.0).
  • Comp. for Reactive Power Within the Standard Power Factor Range, Order No. 904, 189 FERC P 61,034 (2024), order on reh'g, 191 FERC P 61,188 (2025).