ITC Midwest
Ottumwa-Skunk River

Project Background

Responding to the needs of the changing energy landscape, the Midcontinent Independent System Operator – MISO – the grid planning organization for our region, has devoted several years of an intensive, collaborative effort to develop a Long-Range Transmission Plan – known as LRTP – to build needed high-voltage transmission infrastructure across the region. ITC was actively involved with this process and advocated for the LRTP projects.

The Ottumwa-Skunk River project

One segment of the LRTP portfolio is the proposed Ottumwa-Skunk River project, between the Ottumwa Generation Station (OGS) Substation near Ottumwa to the proposed Skunk River Substation that will be built by Ameren west of Mount Pleasant. ITC Midwest will have sole responsibility for the construction, operation and maintenance of the project.

For most of this proposed project, the upgraded line will be double-circuited (two circuits on each structure) with an existing 161 kV (161,000 volt) transmission line owned by ITC Midwest to mitigate the need for a new transmission corridor across privately owned land. In other words, the existing 161 kV line will be removed and relocated on the same structures as the 345 kV line.

The Ottumwa-Skunk River project will provide numerous benefits and drive value for electric consumers locally and regionally. When completed, this transmission line will:

• Increase transmission infrastructure to improve system reliability
• Enhance grid resilience to better withstand extreme weather
• Expand access to generation resources for electric consumers by reducing transmission system congestion
• Improve distribution of lower-cost energy resources, including renewables

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FAQs

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Project Schedule

Public Information Meetings	August 16 & 17, 2023
Easement acquisition complete	Fourth quarter 2024
If approved by Iowa Utilities Board, construction will begin	Second quarter 2026*
Construction complete	Fourth quarter 2027*

*These time frames are subject to change