Wisconsin Electric Power Company Seeks to Intervene in Midcontinent Independent System Operator Proceeding

Strategic Insights -

Wisconsin Electric Power Company, along with its subsidiaries Wisconsin Public Service Corporation and Upper Michigan Energy Resources Corporation, has submitted a motion to intervene in the Midcontinent Independent System Operator, Inc. (MISO) proceeding. The company is seeking to participate in the proceedings related to the proposed tariff revisions that would eliminate the dual registration of demand-side resources as both Load Modifying Resources and Emergency Demand Response.

The WEC Utilities, which include Wisconsin Electric and WPSC, are engaged in the generation, distribution, and sale of electricity to retail and wholesale customers in Wisconsin and the Upper Peninsula of Michigan. As transmission customers and market participants in MISO, they have direct and substantial interests in the proceeding and believe that they cannot be adequately represented by any other party.

Key Takeaways:

  • Wisconsin Electric Power Company, Wisconsin Public Service Corporation, and Upper Michigan Energy Resources Corporation are seeking to intervene in the MISO proceeding.
  • The companies are concerned about the proposed tariff revisions that would eliminate the dual registration of demand-side resources.
  • The WEC Utilities have direct and substantial interests in the proceeding and believe that they cannot be adequately represented by any other party.
  • The companies are seeking full party status, allowing them to participate fully in the proceedings.
  • The WEC Utilities are transmission customers and market participants in MISO, with interests in the sale of electricity to retail and wholesale customers in Wisconsin and the Upper Peninsula of Michigan.

Statistics:

  • The proposed tariff revisions were submitted by MISO on April 25, 2025.
  • The WEC Utilities have a combined total of over 1 million customers across Wisconsin and the Upper Peninsula of Michigan.
  • The companies have a direct interest in the sale of electricity to retail and wholesale customers in the region.
  • The MISO proceeding affects the transmission and distribution of electricity across the Midcontinent region.

Sources:

  • Midcontinent Independent System Operator, Inc. (ER25-2050-000)
  • Wisconsin Electric Power Company (Motion to Intervene)
  • Federal Energy Regulatory Commission (Rules of Practice and Procedure, 18 C.F.R. 385.212, 385.214)