ITC Midwest
Morgan Valley-Twinkle
345 kV Transmission Line Project
345 kV Transmission Line Project
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.
One segment of the LRTP portfolio is the proposed Morgan Valley-Twinkle project, between the Morgan Valley Substation near Fairfax and the planned Twinkle Substation near Marshalltown. This 345 kV (345,000 volt) electric transmission line will be constructed and operated by ITC Midwest.
The Morgan Valley-Twinkle project will provide numerous benefits and drive value for electric consumers locally and regionally. When completed, this transmission line will:
Public Information Meetings | May 17 & 18, 2023 |
Easement acquisition complete | Second quarter 2024* |
If approved by Iowa Utilities Board, construction will begin | Third quarter 2025* |
Construction complete | Third quarter 2027* |
*These time frames are subject to change