Electric System Average Interruption Duration Index (SAIDI) in Minutes

Desired Result:  

 
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Analysis of Performance

This sustained reliability is reflected in strong system metrics: Fort Collins customers, on average, will see a 70 minute (CAIDI) outage every 9.6  years (SAIFI).  For the 12-month period of March 2025 to March 2026, if every customer would have been out of power, the outage would have been 7.2 minutes (SAIDI). This puts our ASAI at 99.9986 %, highlighting the percent of time that service is available to customers. These results consistently outperform national public power averages and illustrate resilience during extreme events and daily operations, providing customers with fewer disruptions, faster restorations, and confidence in their service, driving economic development.  As a community-owned utility, these outcomes highlight the value of local decision-making and long-term stewardship.



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."