Potomac Economics serves as the Independent Market Monitor (IMM) for the Midcontinent ISO (MISO).

Wind generator turbines on summer landscape

MISO is a non-profit company that provides transmission service in the Midwest region of the U.S. and operates wholesale markets for electricity and related services. These include markets for energy, operating reserves, capacity, and transmission rights.

As the Independent Market Monitor, Potomac Economics receives data continuously that is used to evaluate the performance of the markets and identify conduct by market participants or the Midcontinent ISO that compromise the efficiency or distort the outcomes of the markets. In addition to this real time monitoring, Potomac Economics will produce an annual report assessing the competitive performance of the markets and other reports as necessary focused on specific market issues.

Complaint Hotline

As a customer of the Midcontinent ISO or a participant in its markets, you may request investigations or raise market issues for the Independent Market Monitor to investigate.  These requests or complaints may address the conduct of other market participants or the actions of the Midcontinent ISO.  Please submit such requests or complaints by e-mail to mchiasson@potomaceconomics.com

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David Patton Michael Wander Michael Chiasson
President Vice President Vice President
 (703) 383-0720  (703) 383-0724 (317) 249-5721