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Overview#
The Reliability Metrics domain calculates IEEE 1366 standard reliability indices (SAIDI, SAIFI, CAIDI, ASAI) from outage data for utility organizations. It aggregates outage records over configurable time periods, separates storm and non-storm contributions, detects major event days, and compares results against jurisdiction-specific benchmarks for quartile ranking.
Key Features#
- IEEE 1366 index calculation: SAIDI, SAIFI, CAIDI, ASAI, and MAIFI
- Storm versus non-storm SAIDI separation based on outage cause classification
- Major event day detection using daily average threshold multiplier
- Target variance calculation against organization-configured SAIDI and SAIFI targets
- Jurisdiction-specific benchmark comparison with quartile ranking (top 25%, above median, below median, bottom 25%)
- Support for daily, monthly, quarterly, and annual period types
- Metric persistence with conflict resolution on organization, utility type, period, and start date
- Water-specific metrics including loss percentage, pressure complaints, and quality violations
- Gas-specific metrics including leak reporting by grade and dig-in incidents
Use Cases#
- Calculating monthly and annual reliability indices for regulatory reporting and benchmarking
- Comparing utility performance against jurisdiction-specific benchmarks for quartile ranking
- Separating storm impact from baseline reliability to identify operational improvement areas
- Tracking performance variance against organizational targets for continuous improvement
Integration#
The Reliability Metrics domain reads from organization configuration for customer counts and targets, jurisdiction registries for benchmarks, and outage records for period calculations. All operations are organization-scoped.
Last Reviewed: 2026-02-24