County annual report · FIPS 16005
2021 Bannock County, ID Power Outage Report
In 2021, customers in Bannock County, ID went without power for an average of 1.8 hours, a total of 81K customer-hours (Idaho average 5.7 hours). That ranks 37th worst of 43 Idaho counties and 2303rd 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 Bannock 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 | June 23, 2021 00:00 | June 23, 2021 01:30 | 1h 30m | 8,288 | 8,744 |
| 2 | December 14, 2021 15:15 | December 15, 2021 03:30 | 12h 15m | 5,053 | 19K |
| 3 | December 8, 2021 16:45 | December 8, 2021 19:30 | 2h 45m | 2,680 | 1,890 |
| 4 | October 12, 2021 15:30 | October 12, 2021 17:00 | 1h 30m | 2,549 | 2,435 |
| 5 | July 27, 2021 19:00 | July 27, 2021 21:30 | 2h 30m | 2,526 | 2,220 |
| 6 | August 8, 2021 22:15 | August 8, 2021 23:15 | 1h | 2,296 | 1,909 |
| 7 | August 18, 2021 12:15 | August 18, 2021 14:45 | 2h 30m | 2,169 | 713 |
| 8 | August 8, 2021 05:15 | August 8, 2021 06:45 | 1h 30m | 2,092 | 3,138 |
| 9 | April 4, 2021 15:30 | April 4, 2021 16:30 | 1h | 2,088 | 2,088 |
| 10 | August 22, 2021 05:45 | August 22, 2021 08:45 | 3h | 1,895 | 3,796 |
Outage episodes by size in 2021: 56 reached 100+ customers, 20 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 Bannock 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 |
| Idaho Power Co | 2021 | 3.1 hrs | 1.42 | 2.6 hrs | 1.25 |
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 ÷ 43,884 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. Bannock County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Bannock 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/bannock-county