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Momentary Average Interruption Frequency Index (MAIFI) <br /> MAIFI is defined as the average number of times a customer on the utility system will experience a <br /> momentary interruption. <br /> In this report, an outage with a duration of less than five minutes is classfied as momentary. The index is <br /> calculated by dividing the total number of momentary customer interruptions by the total number of <br /> customers served by the utility. Momentary outages can be more difficult to track and many smaller <br /> utilities may not have the technology to do so; therefore, some utilities may have a MAIFI of zero. <br /> Table 8 <br /> Average MAIFI for all utilities that use the eReliability Tracker, belong to your region, and are <br /> grouped in your customer size class <br /> Your utility's MAIFI 0.0002 <br /> Average eReliability Tracker MAIFI 0.2938 <br /> Average MAIFI for Utilities Within Your Region 0.3142 <br /> Average MAIFI for Utilities Within Your Customer Size Class 0.2548 <br /> Table 9 <br /> Summary statistics of the MAIFI data compiled from the eReliability Tracker <br /> Minimum Value 0 <br /> First Quartile(25th percentile) 0 <br /> Median Quartile(50th percentile) 0 <br /> Third Quartile(75th percentile) 0.143 <br /> Maximum Value 7.687 <br /> Figure 6 <br /> Average MAIFI for all utilities that use the eReliability Tracker per region <br /> N 0.8 - 0.7016 <br /> 0.7 - <br /> .2 <br /> a <br /> • 0.6 - <br /> L <br /> 0.5 - <br /> 0.3746 <br /> LL 0.4 - 0.3142 0.3169 <br /> < 0.3 - 0.2366 0.2214 <br /> 0.1888 <br /> a 0.2 - 0.1108 II <br /> co <br /> ■ , <br /> 01 _ <br /> 0.0447 <br /> • 0 <br /> 1 2 3 4 5 6 7 8 9 10 <br /> Association Regions <br /> 8 <br /> 88 <br />