County annual report · FIPS 16029
2018 Caribou County, ID Power Outage Report
In 2018, customers in Caribou County, ID went without power for an average of 3.7 hours, a total of 13K customer-hours (Idaho average 2.0 hours). That ranks 19th worst of 44 Idaho counties and 1329th of 2,798 nationally.
Compared with ID, the US and 2017
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Caribou County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 8, 2018 16:45 | June 8, 2018 21:45 | 5h | 690 | 2,414 |
| 2 | December 12, 2018 18:00 | December 13, 2018 06:00 | 12h | 402 | 4,824 |
| 3 | August 14, 2018 15:15 | August 14, 2018 18:00 | 2h 45m | 223 | 613 |
| 4 | September 23, 2018 00:45 | September 23, 2018 07:00 | 6h 15m | 223 | 1,340 |
| 5 | September 2, 2018 16:45 | September 2, 2018 21:15 | 4h 30m | 147 | 484 |
| 6 | December 7, 2018 20:15 | December 7, 2018 22:00 | 1h 45m | 147 | 257 |
| 7 | May 19, 2018 00:00 | May 19, 2018 02:00 | 2h | 111 | 168 |
| 8 | April 2, 2018 23:00 | April 3, 2018 01:30 | 2h 30m | 93 | 131 |
| 9 | August 31, 2018 15:30 | August 31, 2018 17:15 | 1h 45m | 78 | 117 |
| 10 | May 21, 2018 23:15 | May 22, 2018 01:00 | 1h 45m | 74 | 41 |
Outage episodes by size in 2018: 7 reached 100+ customers, 0 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 2018, 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 | 2018 | 3.2 hrs | 1.62 | 2.0 hrs | 1.25 |
| 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 91% of Idaho's customers in 2018; 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, 2018, 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/2018/idaho/caribou-county