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II.1. System Average Interruption Duration Index <br />SAIDI is the average duration (in minutes) of an interruption per customer served by the utility <br />f NffiMfrwpeci <br />&rrrdrSM(E9 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 interruptioni2�SdittlirinafronpaLby the average number of <br />customers served during that period. For example, a utility with 100 customer minutes of <br />interruption 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 />T&Wmg.e SAIDI with and without MEs <br />In minutes <br />All <br />No MEs <br />Unscheduled <br />Scheduled <br />Your utility <br />42.08 <br />9.8 <br />42.08 <br />NULL <br />Utilities that use the eReliability Tracker <br />120.3 <br />54.49 <br />113.49 <br />13.19 <br />Utilities in your region <br />50.0 <br />32.24 <br />48.83 <br />3.0 <br />Utilities in your size class <br />96.25 <br />39.74 <br />93.5 <br />4.31 <br />16abteT3ary SAIDI data from the eReliability Tracker <br />In minutes <br />All <br />No MEs <br />Unscheduled <br />Scheduled <br />Minimum <br />0.08 <br />0.08 <br />0.08 <br /><0.01 <br />First Quartile <br />19.39 <br />11.07 <br />18.77 <br />0.19 <br />Median <br />44.37 <br />26.79 <br />40.95 <br />1.24 <br />Third Quartile <br />131.4 <br />55.66 <br />127.24 <br />5.03 <br />Maximum <br />1,639.92 <br />776.98 <br />1,634.25 <br />629.54 <br />[2]: Customer minutes of interruption is calculated by multiplying total customers interrupted and total minutes of interruption. <br />178 <br />