County annual report · FIPS 16017
2021 Bonner County, ID Power Outage Report
In 2021, customers in Bonner County, ID went without power for an average of 32.2 hours, a total of 877K customer-hours (Idaho average 5.7 hours). That ranks 5th worst of 43 Idaho counties and 281st 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 Bonner 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 | April 19, 2021 00:45 | April 20, 2021 23:45 | 1d 23h | 28,983 | 193K |
| 2 | November 15, 2021 22:15 | November 20, 2021 03:30 | 4d 5h | 25,571 | 224K |
| 3 | January 13, 2021 10:45 | January 19, 2021 04:30 | 5d 17h | 18,423 | 234K |
| 4 | March 28, 2021 21:45 | March 29, 2021 23:45 | 1d 2h | 8,438 | 56K |
| 5 | October 10, 2021 14:30 | October 11, 2021 23:15 | 1d 8h | 4,310 | 8,546 |
| 6 | May 23, 2021 01:45 | May 23, 2021 18:00 | 16h 15m | 4,057 | 37K |
| 7 | April 27, 2021 14:45 | April 27, 2021 18:15 | 3h 30m | 3,460 | 4,252 |
| 8 | June 7, 2021 22:15 | June 7, 2021 23:00 | 45m | 2,805 | 2,104 |
| 9 | May 3, 2021 14:45 | May 3, 2021 19:15 | 4h 30m | 2,107 | 542 |
| 10 | March 31, 2021 17:15 | March 31, 2021 22:00 | 4h 45m | 1,786 | 1,399 |
Outage episodes by size in 2021: 100 reached 100+ customers, 21 reached 1,000+ customers, 3 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 Bonner 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 |
|---|---|---|---|---|---|
| Avista Corp | 2021 | 16.1 hrs | 2.31 | 2.9 hrs | 1.29 |
| Inland Power & Light Company | 2021 | 11.9 hrs | 1.85 | 3.4 hrs | 1.24 |
| Kootenai Electric Cooperative | 2021 | 40.2 hrs | 3.25 | 3.5 hrs | 1.38 |
| Bonneville Power Administration | - | - | - | - | - |
| Avista Corp,avista | - | - | - | - | - |
| Northern Lights, 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 ÷ 27,216 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. Bonner County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Bonner 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/bonner-county