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IIA. System Average Interruption Duration Index <br />SAIDI is the average duration (in minutes) of an interruption per customer served by the utility <br />fl6ffiMfbcffpeci <br />flene-OrSMdX is a sustained interruption index, only outages lasting longer than <br />are included in the calculations. SAIDI is calculated by dividing the sum of all customer <br />minutes of interruptionlfidittti*etfraBpeby the average number of customers <br />served during that period. For example, a utility with 100 customer minutes of interruption <br />and 100 customers would have a SAIDI of 1. <br />Note that in the tables below, scheduled and unscheduled calculations include MEs. Also note <br />that wherever MEs are excluded, the exclusion is based on the APPA ME threshold for your <br />system. <br />TaMm4e SAIDI with and without MEs <br />In minutes <br />Your <br />Utilities that use the eReliability Tracker <br />Utilities in your region <br />Utilities in your size class <br />All <br />No MEs <br />Unscheduled <br />Scheduled <br />14.08 <br />5.78 <br />11.72 <br />2.36 <br />88.97 <br />47 <br />84.06 <br />8.95 <br />46.77 <br />26.83 <br />44.13 <br />5.4 <br />72.22 <br />37.37 <br />70.12 <br />3.36 <br />Tabte-ary SAIDI data from the eReliability Tracker <br />In minutes <br />Minimum <br />First Quartile <br />Median <br />Third Quartile <br />Maximum <br />All <br />No MEs <br />Unscheduled <br />Scheduled <br />0.2 <br />0.04 <br />0.04 <br />0 <br />18.2 <br />11.89 <br />15.9 <br />0.19 <br />50.54 <br />27.57 <br />45.7 <br />1.04 <br />111.3 <br />58.28 <br />106.4 <br />4.44 <br />1028.99 <br />691.25 <br />1028.75 <br />480.88 <br />193 <br />1.1 <br />