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System Average Interruption Frequency Index (SAIFI) <br /> SAIFI is defined as the average number of instances a customer on the utility system will experience an <br /> interruption during a specific time period. <br /> Since SAIFI is a sustained interruption index, only outages lasting longer than five minutes are included in <br /> the calculations. SAIFI is calculated by dividing the total number of customer interruptions by the average <br /> number of customers served during that time period. For example, a utility with 150 customer interruptions <br /> and 200 customers would have a SAIFI of 0.75 interruptions per customer. <br /> Table 4 <br /> Average SAIFI 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 SAIFI 0.172 <br /> Average eReliability Tracker SAIFI 0.9541 <br /> Average SAIFI for Utilities Within Your Region 0.6658 <br /> Average SAIFI for Utilities Within Your Customer Size Class 0.7373 <br /> Table 5 <br /> Summary statistics of the SAIFI data compiled from the eReliability Tracker <br /> Minimum Value 0.0071 <br /> First Quartile(25th percentile) 0.284 <br /> Median Quartile (50th percentile) 0.667 <br /> Third Quartile (75th percentile) 1.223 <br /> Maximum Value 7.535 <br /> Figure 4 <br /> Average SAIFI for all utilities that use the eReliability Tracker per region <br /> 1.6 - <br /> c 1.4 - 1.3146 1.3898 <br /> o 1.1986 <br /> 1.2 1.0079 1.0152 <br /> 1 - 0.881 <br /> • 0.8 - 0.6658 0.6529 0.7024 <br /> a 0.6 - <br /> to <br /> a> 0.4 - <br /> rn <br /> 1- 0.2 - <br /> 1 2 3 4 5 6 7 8 9 10 <br /> Association Regions <br /> 6 <br /> 86 <br />