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Indiana Michigan Power

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Indiana Michigan Power is an American electric utility serving customers in Indiana and Michigan as a subsidiary of American Electric Power.

Last updated September 26, 2026

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Overview

Indiana Michigan Power (I&M) is an electric utility in the United States, operating as a subsidiary of American Electric Power (AEP). The company delivers electricity to customers in Indiana and Michigan, maintaining generation, transmission, and distribution infrastructure across its service territory. Its operations are regulated by state utility commissions in both states, and it is part of AEP's broader family of utility operating companies. As a regulated utility, I&M focuses on providing reliable electric service, managing grid infrastructure, and transitioning its generation fleet toward cleaner energy sources in line with parent-company goals. The company engages with local communities, regulators, and customers on rate cases, infrastructure investments, and energy programs. Its headquarters are located in Fort Wayne, Indiana, a key hub for its operations. Indiana Michigan Power is not a publicly traded company itself; it is a wholly owned subsidiary within AEP's corporate structure. Its brand identity is tied to regional service and reliability, and it operates under the AEP umbrella for strategic direction and capital allocation.

History

Indiana Michigan Power is an electric utility in the United States. It operates as a subsidiary of American Electric Power (AEP), one of the largest investor-owned utility holding companies in the United States. The company provides electric service to customers in Indiana and Michigan, with its headquarters in Fort Wayne, Indiana. As part of AEP, I&M has been involved in the parent company's long-term strategy of grid modernization, renewable energy investment, and regulated utility operations. The utility's history is intertwined with the broader development of the electric power industry in the Midwest, including the expansion of transmission networks and the integration of generating resources. Specific founding dates, original corporate names, and detailed historical milestones are not provided in the available evidence. The company continues to operate as a regulated electric utility, serving its regional customer base under the AEP brand family.

Products and positioning

Regional regulated electric utility under American Electric Power, focused on reliable and increasingly clean energy delivery.

  • Electricity generation

    Generation of electric power for distribution to retail customers.

  • Electricity transmission and distribution

    Delivery of electricity through transmission and distribution networks.

Recent events

  • Reported

    Indiana Michigan Power reports outage in northern St. Joseph County[2]

    Indiana Michigan Power reported a power outage near Portage Road and Brick Road in northern St. Joseph County, affecting more than 130 customers, and estimated restoration around 7:30 p.m.

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