County annual report · FIPS 16039
2025 Elmore County, ID Power Outage Report
In 2025, customers in Elmore County, ID went without power for an average of 3.9 hours, a total of 53K customer-hours (Idaho average 5.6 hours). That ranks 31st worst of 43 Idaho counties and 1790th of 3,000 nationally.
Compared with ID, the US and 2024
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Elmore County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 17, 2025 11:45 | March 17, 2025 12:00 | 15m | 1,635 | 409 |
| 2 | December 17, 2025 16:45 | December 18, 2025 20:00 | 1d 3h | 1,558 | 21K |
| 3 | August 28, 2025 23:00 | August 29, 2025 02:15 | 3h 15m | 1,007 | 2,704 |
| 4 | December 5, 2025 23:30 | December 6, 2025 06:15 | 6h 45m | 913 | 5,099 |
| 5 | April 10, 2025 10:15 | April 10, 2025 12:30 | 2h 15m | 908 | 2,043 |
| 6 | October 16, 2025 01:45 | October 16, 2025 07:15 | 5h 30m | 853 | 1,167 |
| 7 | July 11, 2025 07:15 | July 11, 2025 08:45 | 1h 30m | 822 | 773 |
| 8 | August 27, 2025 14:00 | August 27, 2025 23:00 | 9h | 755 | 2,272 |
| 9 | July 10, 2025 03:45 | July 10, 2025 10:00 | 6h 15m | 647 | 621 |
| 10 | December 3, 2025 23:15 | December 3, 2025 23:45 | 30m | 624 | 312 |
Outage episodes by size in 2025: 32 reached 100+ customers, 3 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 Elmore County reported on EIA Form 861 for 2025, 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 | 2024 | 6.0 hrs | 1.97 | 5.0 hrs | 1.84 |
| Bonneville Power Administration | - | - | - | - | - |
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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 13,404 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. Elmore County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Elmore County, ID annual power outage report, 2025, 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/2025/idaho/elmore-county