County annual report · FIPS 16045
2021 Gem County, ID Power Outage Report
In 2021, customers in Gem County, ID went without power for an average of 5.3 hours, a total of 46K customer-hours (Idaho average 5.7 hours). That ranks 17th worst of 43 Idaho counties and 1274th of 2,974 nationally.
Compared with ID, the US and 2020
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Gem County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 13, 2021 15:45 | December 13, 2021 16:45 | 1h | 3,961 | 2,961 |
| 2 | October 14, 2021 16:00 | October 14, 2021 21:15 | 5h 15m | 2,065 | 11K |
| 3 | March 29, 2021 07:00 | March 29, 2021 18:00 | 11h | 1,994 | 12K |
| 4 | June 3, 2021 22:45 | June 4, 2021 04:30 | 5h 45m | 1,456 | 2,781 |
| 5 | October 13, 2021 16:30 | October 13, 2021 20:00 | 3h 30m | 1,456 | 3,249 |
| 6 | June 23, 2021 05:15 | June 23, 2021 22:15 | 17h | 1,450 | 5,820 |
| 7 | July 7, 2021 03:15 | July 7, 2021 04:00 | 45m | 968 | 559 |
| 8 | January 19, 2021 02:45 | January 19, 2021 05:00 | 2h 15m | 666 | 1,499 |
| 9 | July 5, 2021 04:15 | July 5, 2021 08:00 | 3h 45m | 511 | 858 |
| 10 | March 6, 2021 11:45 | March 6, 2021 15:30 | 3h 45m | 319 | 1,157 |
Outage episodes by size in 2021: 15 reached 100+ customers, 6 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 Gem County reported on EIA Form 861 for 2021, 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 | 2021 | 3.1 hrs | 1.42 | 2.6 hrs | 1.25 |
| 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 90% of Idaho's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,691 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. Gem County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Gem County, ID annual power outage report, 2021, 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/2021/idaho/gem-county