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The Area Control Error (ACE) chart provides a close to real-time display of the current ACE value* for the MISO footprint. The chart is updated every 30 seconds.
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*Disclaimer: The data provided on this page are preliminary and should not be relied upon for decision making or other purposes. MISO makes no representations or warrantees regarding the correctness or veracity of the data and process provided on this page and shall not be responsible for any party’s reliance on any such data.
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