County annual report · FIPS 16029
2021 Caribou County, ID Power Outage Report
In 2021, customers in Caribou County, ID went without power for an average of 3.6 hours, a total of 13K customer-hours (Idaho average 5.7 hours). That ranks 25th worst of 43 Idaho counties and 1640th 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 Caribou 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 | July 12, 2021 20:30 | July 13, 2021 00:30 | 4h | 1,071 | 539 |
| 2 | July 27, 2021 16:15 | July 27, 2021 20:00 | 3h 45m | 1,026 | 765 |
| 3 | September 11, 2021 01:15 | September 11, 2021 19:00 | 17h 45m | 487 | 2,896 |
| 4 | June 21, 2021 01:45 | June 21, 2021 12:00 | 10h 15m | 474 | 2,020 |
| 5 | July 13, 2021 11:00 | July 13, 2021 11:45 | 45m | 458 | 230 |
| 6 | March 29, 2021 14:30 | March 29, 2021 21:15 | 6h 45m | 405 | 852 |
| 7 | April 30, 2021 15:30 | April 30, 2021 21:30 | 6h | 329 | 985 |
| 8 | November 15, 2021 17:30 | November 15, 2021 19:30 | 2h | 316 | 490 |
| 9 | May 2, 2021 01:30 | May 2, 2021 02:00 | 30m | 233 | 117 |
| 10 | October 12, 2021 04:15 | October 13, 2021 03:45 | 23h 30m | 168 | 1,081 |
Outage episodes by size in 2021: 14 reached 100+ customers, 2 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 Caribou 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2021 | 4.3 hrs | 1.86 | 2.0 hrs | 1.19 |
| Lower Valley Energy Inc | - | - | - | - | - |
| City of Soda Springs - (ID) | - | - | - | - | - |
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 ÷ 3,639 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. Caribou County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Caribou 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/caribou-county