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Media Center

The Midcontinent Independent System Operator, Inc. (MISO) ensures the reliable delivery of electricity, at the lowest cost, across high-voltage power lines in 15 U.S. States and the Canadian province of Manitoba. 42 million Americans depend on us to keep the power flowing. MISO also conducts transmission planning and manages the buying and selling of wholesale electricity in one of the world’s largest energy markets.

MISO is a not-for-profit, member-based organization. We do not own any generation or transmission facilities. We strictly manage the generation and flow of electricity across the high-voltage lines within the MISO territory.


  • Carmel, IN - Headquarters and main control room
  • Eagan, MN – North Region offices and control room
  • Little Rock, AR – South Region offices and control room

Media Contacts

317-249-5650     (For All Locations)


Social Media 

Pronunciation Guide

MISO (mEYE-so)

Use MISO in all references to our corporate name

Additional Information 

Emergency Operations FAQ 

MISO Operating Procedures

Current Grid Conditions


MISO News Releases