Electric System Average Interruption Duration Index (SAIDI) in Minutes

Desired Result:  Below Target

 
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Analysis of Performance

Annual Regional Average data updated after receiving information from Front Range Utilities.  Regional average increased this year as a result of large outages stemming from heavy winds across the Front Range in December 2021 that has significant impact on utilities with overhead lines.


Fort Collins Light & Power reliability in one sentence: On average, a customer in Fort Collins can expect a 76.31 minute outage about every 3.57 years.

SAIDI is how long, on average, each customer was without power in the last year.

* The 22Q3 SAIDI value of 21.17 minutes increased from 12.95 minutes for the 12-month measurement period for the prior quarter.

* Taken into context SAIDI, CAIDI and SAIFI, 22Q3 reliability showed an overall reduction with a decrease in frequency of outages (135 outages versus last quarter's 136), and an increase in duration of outages (27,622 customer hours out versus 16,851 customer hours out for the 12-month measurement period for Q2). While there was an overall decrease in reliablity, this number still represents reliability in the top quartile of public power agencies in North America.

* The increase in customer-hours out is a function of both the type of equipment failures that occurred in the 12-month period ending 22Q3 and the number of customer affected by them.  Duration of outage was largely driven by 3 splice failures on mainline feeders that affected more customers and required additional sectionalizing time in order to safely perform repairs.



Metric Definition
The electric distribution System Average Interruption Duration Index (SAIDI) is a description of the length of time all customers would have been out of power if the total number of hours out of service over the last 12 months were to be shared, and it is typically measured in minutes. The number of outages as well as the time between the start of an outage and the restoration of electric service have a bearing on this number.
Why Is This Important?
SAIDI provides our customers with a sense of how well Fort Collins Utilities responds to outages.  Because SAIDI is an industry standard measure, it allows current and perspective customers to compare our quality of service to other communities.
City Organization Impact on Performance

High – Reliable electric service depends on quality installation and maintenance of utility infrastructure to avoid service interruptions and sufficient resources to respond quickly to outages as they occur.  Fort Collins Light and Power is directly responsible for both of these tasks.

Benchmark Information
This metric contains regional and national benchmark data that compares the City's performance to other public utilities. The regional benchmark accounts for local factors that impact performance on this metric; the national benchmark compares Fort Collins' performance to national "best practices."