County annual report · FIPS 16059
2017 Lemhi County, ID Power Outage Report
In 2017, customers in Lemhi County, ID went without power for an average of 5.0 hours, a total of 19K customer-hours (Idaho average 3.0 hours). That ranks 20th worst of 44 Idaho counties and 959th of 2,786 nationally.
Compared with ID, the US and 2016
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Lemhi County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 13, 2017 11:00 | May 13, 2017 16:15 | 5h 15m | 1,280 | 5,308 |
| 2 | April 20, 2017 23:00 | April 21, 2017 00:00 | 1h | 879 | 879 |
| 3 | September 14, 2017 21:30 | September 15, 2017 00:00 | 2h 30m | 764 | 806 |
| 4 | April 17, 2017 14:00 | April 17, 2017 14:45 | 45m | 699 | 524 |
| 5 | May 11, 2017 13:00 | May 11, 2017 22:15 | 9h 15m | 616 | 4,276 |
| 6 | November 4, 2017 07:45 | November 4, 2017 10:00 | 2h 15m | 568 | 474 |
| 7 | July 27, 2017 23:45 | July 28, 2017 03:15 | 3h 30m | 394 | 1,379 |
| 8 | November 18, 2017 20:15 | November 19, 2017 00:15 | 4h | 382 | 1,337 |
| 9 | November 20, 2017 20:15 | November 21, 2017 00:15 | 4h | 382 | 1,146 |
| 10 | May 9, 2017 10:30 | May 9, 2017 11:30 | 1h | 250 | 250 |
Outage episodes by size in 2017: 14 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 2017, 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 | 2017 | 3.8 hrs | 1.38 | 3.6 hrs | 1.35 |
| 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 n/a of Idaho's customers in 2017; 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, 2017, 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/2017/idaho/lemhi-county