Electric System Average Interruption Duration Index (SAIDI) in Minutes

Desired Result:  Below Target

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Analysis of Performance

Fort Collins Light & Power reliability in one sentence (SAIDI is how long, on average, each customer was without power in the last year):

On average, a customer in Fort Collins can expect a 58 minute outage about every 2.9 years.

  • The 21Q3 SAIDI value of 19.34 minutes increased from 14.63 minutes in the prior quarter.
  • Taken into context with each other, SAIDI, CAIDI and SAIFI, describe a more complete picture of reliability.  21Q3 reliability was reduced overall with increase in frequency and a small reduction in duration of outages.
  • The increased frequency of outages was driven by dig-in outages. Dig-in failures are occurring as a result of an increase of excavation and directional drilling as part of the broadband deployment.
  • The change in duration (customer-hours out) is primarily a function of the type of equipment failures that occurred in the 12-month period ending 21Q1. The prominent equipment failure types (medium voltage cables and connectors) were substantially the same as in Q2, so the drop in duration was not enough to improve reliability in light of the increased frequency of outages.

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 in a year's time 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."