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AEEBullishCorporate Developmentsnews
High materiality7/10

Ameren-led consortium wins MISO EASL 765-kV transmission project

Oct 22, 2026, 4:58 PM EDT1 sourcesAI-analyzed
Why it may matterVerify against the original reporting

Adds to visible, long-term rate-base growth; regulatory risk exists but project backing and LRTP inclusion support valuation.

AI summary

What happened, with direct paths to the underlying reporting

MISO selected a consortium led by Ameren Transmission Company of Illinois (ATXI), GridLiance Heartland (NextEra) and Dairyland Power Cooperative to develop the East Adair–Minnesota/Iowa line (EASL). The project totals about $1.23 billion with 42.5% ownership for ATXI and GridLiance and 15% for Dairyland, targeting in-service dates of 2032 (345-kV) and 2034 (765-kV). This expands Ameren’s long-term regulated asset base and potential cash flows, subject to regulatory approvals.

  • MISO selects ATXI (Ameren), GridLiance Heartland, and Dairyland for EASL project.
  • Total estimated cost about $1.23 billion; ownership 42.5%/42.5%/15%.
  • 787? 765-kV backbone project spans 187 miles; 345-kV lines total ~22 miles.
  • In-service dates: 765-kV by 2034; 345-kV by 2032.
  • Part of MISO LRTP Tranche 2.1 portfolio; regulatory review ahead.

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