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About MISO

MISO (Midcontinent Independent System Operator) is an independent, not-for-profit, member-based organization responsible for operating the power grid across 15 U.S. states and the Canadian province of Manitoba. MISO was founded in 1998 and approved as the nation's first RTO in 2001. MISO is governed by an independent Board of Directors and is headquartered in Carmel, Indiana with an operations centers in St. Paul, Minnesota and Little Rock, Arkansas..

In addition to managing the power grid within our region, MISO administers the buying and selling of electricity, and partners with members and stakeholders to plan the grid of the future

MISO's scale of committed operations:

  • 200,225 MW Generation Capacity (reliability)
  • 130,897 MW Historic Peak Load (reliability, set July 20, 2011)
  • 72,000 miles of transmission
  • $22 billion in annual gross market charges (2020)
  • 56 Transmission Owners
  • 132 non-transmission owning members
  • 495 registered market participants

For more information about MISO or visit their calendar.

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