Electric System Average Interruption Duration Index (SAIDI) in Minutes
Analysis of Performance
Fort Collins Light & Power reliability in one sentence: On average, a customer in Fort Collins can expect a 19.87-minute outage every year.
SAIDI is how long, on average, each customer was without power in the last year.
The 23Q4 SAIDI value decreased to 19.87 minutes from 21.86 minutes compared to the 12-month measurement period for 23Q3.
Taken into context SAIFI, SAIDI, and CAIDI 23Q4 reliability showed a similar frequency of outages (128 outages versus last quarter's 126), and a reduction of 4,841 overall customer outage hours (19,142 hours versus last quarter’s 23,983 hours) for the 12-month measurement period for Q4. For those customers who experienced an outage, however, the average outage time increased from 71.87 minutes to 82.05.
The reduction in customer hours for outages is consistent with the transition from Summer and Fall to the winter months, with seventeen primary cable failures, one 600 A splice failure, and six 200 A junction failures accounting for 93% of the outage hours.