Electric System Average Interruption Duration Index (SAIDI) in Minutes

Desired Result:  

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Analysis of Performance

Fort Collins Light & Power reliability in one sentence: On average, a customer in Fort Collins can expect a 69.56 minute outage about every 2.43 years.

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

  • The 23Q1 SAIDI value of 28.70 minutes increased from 22.29 minutes over the the 12-month measurement period for 22Q4.
  • Taken into context SAIDI, CAIDI and SAIFI, 23Q1 reliability showed an overall reduction with a increase in frequency of outages (119 outages versus last quarter's 118), and an increase in duration of outages (36,884 customer hours out versus 29,144 customer hours out for the 12-month measurement period for Q3). While there was an overall decrease in reliability, these numbers still represents reliability in the top third of public power agencies in North America.
  • The increase in customer-hours out is a function of both the type of outages that occurred in the 12-month period ending 23Q4 and the number of customer affected by them. The customer hours for outages went up overall, with dig-in outages and vehicle incidents accounting for most of the increase, while the customer hours associated with equipment failures dropped.

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."