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December 5, 2025

MISO variance analysis

© RTO Insider 
MISO TOs Oppose Tx Cost Containment Suggestions
Multiple transmission owners have questioned the need behind a suggestion that MISO work more checks into its process for reviewing troubled transmission projects.
Northern Indiana Public Service Co.
MISO to Make Transmission Re-evaluation Process More Public

MISO said it will create more public notices throughout its variance analysis, the process it uses to reassess transmission projects that experience cost increases or other obstacles.

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End Users Push MISO for More Intensive Cost Overrun Evals on Tx Projects
MISO’s end-use customers called for more “insight and transparency into” the variance analysis as well as a lower, 10% threshold on cost overruns to trigger the analysis.
ITC Midwest
Stakeholders Want More from MISO on Tx Project Cost Containment
MISO said it doesn’t think it needs to step up cost monitoring on its ever-larger transmission projects as some stakeholders call for tighter measures.
MISO
Cost Overruns on Project in 1st LRTP Prompt MISO Analysis
MISO will examine one of the long-range transmission projects from its first portfolio following a cost increase of more than two and a half.

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