Description
This dataset provides a baseline of power outage risk metrics across US states and utility providers. It can be used to assess risks of power outage frequency, severity, and length both inclusive and exclusive of major extreme events (e.g. hurricanes).
Technical Description
The Power Outage Risk, Historical, Baseline dataset provides a baseline of power outage severity, frequency, and duration for the U.S. by state and utility provider, using well-established reliability indicators for energy supply risk: SAIDI (System Average Interruption Duration Index), SAIFI (System Average Interruption Frequency Index), and CAIDI (Customer Average Interruption Duration Index). Data are aggregated over a 10-year baseline (2014–2023) from Form EIA-861 reliability reports. Metrics are provided both inclusive of major event days (with_med) and exclusive of them (without_med). Major event days are statistically identified outliers, typically associated with extreme weather events. Indices without MED provide measures of typical, day-to-day reliability performance, while indices with MED capture outage exposure including extreme events.
The dataset includes both utility-level averages and state-level customer-weighted averages, as well as percentile-based risk classes (1–5) that allow comparison across states and utilities.