County annual report · FIPS 16059
2019 Lemhi County, ID Power Outage Report
In 2019, customers in Lemhi County, ID went without power for an average of 8.5 hours, a total of 32K customer-hours (Idaho average 2.2 hours). That ranks 11th worst of 44 Idaho counties and 652nd of 2,945 nationally.
Compared with ID, the US and 2018
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Lemhi County, 2019
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 13, 2019 20:15 | September 13, 2019 20:45 | 30m | 5,865 | 2,933 |
| 2 | January 2, 2019 23:45 | January 3, 2019 00:00 | 15m | 5,817 | 1,454 |
| 3 | August 2, 2019 22:30 | August 3, 2019 00:45 | 2h 15m | 4,992 | 11K |
| 4 | October 9, 2019 05:15 | October 9, 2019 08:45 | 3h 30m | 1,302 | 3,960 |
| 5 | October 26, 2019 10:15 | October 26, 2019 13:00 | 2h 45m | 722 | 1,986 |
| 6 | July 7, 2019 03:30 | July 7, 2019 07:15 | 3h 45m | 718 | 1,663 |
| 7 | April 17, 2019 14:15 | April 17, 2019 20:45 | 6h 30m | 577 | 3,751 |
| 8 | June 7, 2019 03:15 | June 7, 2019 09:00 | 5h 45m | 538 | 1,876 |
| 9 | April 27, 2019 23:45 | April 28, 2019 03:15 | 3h 30m | 438 | 534 |
| 10 | February 24, 2019 22:15 | February 24, 2019 23:30 | 1h 15m | 321 | 316 |
Outage episodes by size in 2019: 12 reached 100+ customers, 4 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 2019, 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 | 2018 | 2.3 hrs | 1.01 | 2.3 hrs | 1.00 |
| 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 92% of Idaho's customers in 2019; 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, 2019, 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/2019/idaho/lemhi-county