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MISO picks Ameren, GridLiance and Dairyland consortium for $1.23 billion Iowa grid project

MISO selected an Ameren, GridLiance and Dairyland consortium to build a 765-kV and 345-kV Iowa transmission project due in service in 2032 and 2034.

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what happened

According to TradingView, the Midcontinent Independent System Operator (MISO) has chosen a consortium of Ameren Transmission Company of Illinois, GridLiance Heartland, a unit of NextEra Energy Transmission, and Dairyland Power Cooperative. The group will develop, build, operate and maintain a major transmission project in Iowa. MISO estimates the total cost at about $1.23 billion. Ownership stakes are 42.5% for ATXI, 42.5% for GridLiance and 15% for Dairyland.

The EASL project includes one new 765-kV line of roughly 187 miles, the East Adair substation, and two 345-kV lines totaling about 22 miles. The 345-kV scope is expected to enter service on June 1, 2032, and the 765-kV scope on June 1, 2034.

why it matters

The project is part of MISO's Long Range Transmission Planning Tranche 2.1 portfolio, approved in December 2024. For investors, it signals a long cycle of large spending on US interregional grids, which tends to benefit transmission companies and contractors. The project still has to pass a regulatory review and stakeholder engagement before construction.

market impact

Ameren and NextEra: a large, long-dated grid contract supports regulated transmission earnings outlook

tags

StockUnited States

instruments

AEENEEAmerenNextEra Energy

sources

  1. MISO selects consortium of Ameren, GridLiance, Dairyland to deliver foundational energy grid project in Iowa — TradingView, 22 October 2026 at 20:30 UTC
  2. Miso Selects Consortium Of Ameren, Gridliance, Dairyland To Deliver Foundational Energy Grid Project In Iowa — Reuters, 22 October 2026 at 22:19 UTC

prepared by the newsmetry newsroom with ai assistance from the sources listed below. not investment advice.

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