County annual report · FIPS 16059
2022 Lemhi County, ID Power Outage Report
In 2022, customers in Lemhi County, ID went without power for an average of 11.7 hours, a total of 43K customer-hours (Idaho average 3.0 hours). That ranks 8th worst of 43 Idaho counties and 607th of 2,976 nationally.
Compared with ID, the US and 2021
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Lemhi County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 19, 2022 12:45 | April 19, 2022 23:30 | 10h 45m | 2,179 | 15K |
| 2 | August 12, 2022 23:00 | August 13, 2022 00:00 | 1h | 964 | 964 |
| 3 | June 5, 2022 04:15 | June 5, 2022 09:45 | 5h 30m | 953 | 5,242 |
| 4 | April 21, 2022 15:15 | April 21, 2022 15:30 | 15m | 944 | 236 |
| 5 | July 13, 2022 21:30 | July 14, 2022 00:00 | 2h 30m | 913 | 1,368 |
| 6 | November 29, 2022 22:15 | November 30, 2022 02:15 | 4h | 793 | 2,497 |
| 7 | May 10, 2022 04:30 | May 10, 2022 10:45 | 6h 15m | 785 | 4,070 |
| 8 | January 19, 2022 10:45 | January 19, 2022 16:45 | 6h | 778 | 3,859 |
| 9 | February 16, 2022 10:15 | February 16, 2022 12:30 | 2h 15m | 623 | 926 |
| 10 | June 11, 2022 18:45 | June 11, 2022 21:15 | 2h 30m | 358 | 895 |
Outage episodes by size in 2022: 15 reached 100+ customers, 1 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 2022, 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 | 2022 | 2.3 hrs | 0.98 | 2.3 hrs | 0.97 |
| Salmon River Electric Coop 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 91% of Idaho's customers in 2022; 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, 2022, 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/2022/idaho/lemhi-county