County annual report · FIPS 16059
2023 Lemhi County, ID Power Outage Report
In 2023, customers in Lemhi County, ID went without power for an average of 6.8 hours, a total of 25K customer-hours (Idaho average 2.4 hours). That ranks 12th worst of 43 Idaho counties and 1166th 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 Lemhi 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 | August 8, 2023 03:00 | August 8, 2023 03:45 | 45m | 5,294 | 1,337 |
| 2 | August 1, 2023 05:45 | August 1, 2023 10:45 | 5h | 2,387 | 10K |
| 3 | September 9, 2023 02:30 | September 9, 2023 04:15 | 1h 45m | 1,413 | 2,224 |
| 4 | May 15, 2023 11:45 | May 15, 2023 14:15 | 2h 30m | 941 | 2,194 |
| 5 | March 21, 2023 08:15 | March 21, 2023 20:30 | 12h 15m | 868 | 2,402 |
| 6 | March 6, 2023 06:45 | March 6, 2023 08:30 | 1h 45m | 667 | 728 |
| 7 | April 29, 2023 22:15 | April 30, 2023 00:00 | 1h 45m | 363 | 555 |
| 8 | November 5, 2023 06:30 | November 5, 2023 09:45 | 3h 15m | 330 | 399 |
| 9 | July 17, 2023 11:30 | July 17, 2023 13:15 | 1h 45m | 272 | 476 |
| 10 | July 27, 2023 16:15 | July 27, 2023 18:15 | 2h | 272 | 544 |
Outage episodes by size in 2023: 15 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 Lemhi 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 |
| Salmon River Electric Coop Inc | 2023 | 8.9 hrs | 2.55 | 8.9 hrs | 2.55 |
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 ÷ 3,727 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. Lemhi County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lemhi 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/lemhi-county