County annual report · FIPS 16031
2023 Cassia County, ID Power Outage Report
In 2023, customers in Cassia County, ID went without power for an average of 1.9 hours, a total of 28K customer-hours (Idaho average 2.4 hours). That ranks 34th worst of 43 Idaho counties and 2322nd of 2,977 nationally.
Compared with ID, the US and 2022
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Cassia County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 27, 2023 01:00 | September 27, 2023 05:30 | 4h 30m | 3,306 | 12K |
| 2 | March 24, 2023 00:15 | March 24, 2023 06:15 | 6h | 1,898 | 8,814 |
| 3 | August 18, 2023 21:00 | August 18, 2023 22:00 | 1h | 762 | 762 |
| 4 | June 25, 2023 06:30 | June 25, 2023 09:30 | 3h | 434 | 787 |
| 5 | August 1, 2023 15:00 | August 2, 2023 04:00 | 13h | 261 | 1,191 |
| 6 | June 7, 2023 00:15 | June 7, 2023 04:00 | 3h 45m | 228 | 770 |
| 7 | February 19, 2023 09:45 | February 19, 2023 19:30 | 9h 45m | 118 | 629 |
| 8 | August 8, 2023 11:15 | August 8, 2023 18:45 | 7h 30m | 113 | 183 |
| 9 | August 27, 2023 11:00 | August 27, 2023 12:45 | 1h 45m | 113 | 198 |
| 10 | December 23, 2023 08:45 | December 23, 2023 12:00 | 3h 15m | 113 | 365 |
Outage episodes by size in 2023: 11 reached 100+ customers, 2 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Cassia County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Idaho Power Co | 2023 | 2.5 hrs | 1.21 | 2.4 hrs | 1.16 |
| United Electric Co-op, Inc - (ID) | 2023 | 5.5 hrs | 2.76 | 49 min | - |
| Raft Rural Elec Coop Inc | - | - | - | - | - |
| City of Burley - (ID) | - | - | - | - | - |
| East End Mutual Elec Co Ltd | - | - | - | - | - |
| City of Albion - (ID) | - | - | - | - | - |
| City of Declo - (ID) | - | - | - | - | - |
| South Side Electric, Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Idaho's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 14,726 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Cassia County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cassia County, ID annual power outage report, 2023, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2023/idaho/cassia-county