County annual report · FIPS 16019
2021 Bonneville County, ID Power Outage Report
In 2021, customers in Bonneville County, ID went without power for an average of 1.9 hours, a total of 148K customer-hours (Idaho average 5.7 hours). That ranks 36th worst of 43 Idaho counties and 2281st 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 Bonneville 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 | January 26, 2021 15:15 | January 26, 2021 17:45 | 2h 30m | 12,061 | 18K |
| 2 | March 29, 2021 14:30 | March 30, 2021 04:45 | 14h 15m | 9,496 | 61K |
| 3 | September 10, 2021 00:15 | September 10, 2021 06:45 | 6h 30m | 4,007 | 8,020 |
| 4 | February 14, 2021 11:45 | February 14, 2021 14:00 | 2h 15m | 3,017 | 1,087 |
| 5 | February 3, 2021 10:30 | February 4, 2021 00:45 | 14h 15m | 2,839 | 7,707 |
| 6 | December 20, 2021 18:15 | December 21, 2021 01:00 | 6h 45m | 2,774 | 4,003 |
| 7 | February 25, 2021 19:15 | February 25, 2021 19:30 | 15m | 2,359 | 590 |
| 8 | April 8, 2021 18:00 | April 9, 2021 06:30 | 12h 30m | 2,224 | 2,509 |
| 9 | March 20, 2021 13:30 | March 20, 2021 20:30 | 7h | 1,963 | 1,570 |
| 10 | March 10, 2021 20:30 | March 10, 2021 21:45 | 1h 15m | 1,785 | 479 |
Outage episodes by size in 2021: 67 reached 100+ customers, 16 reached 1,000+ customers, 1 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 Bonneville 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 |
| City of Idaho Falls - (ID) | 2021 | 1.9 hrs | 0.92 | 35 min | 0.44 |
| Lower Valley Energy 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 90% of Idaho's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 79,451 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. Bonneville County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Bonneville 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/bonneville-county