County annual report · FIPS 16051
2020 Jefferson County, ID Power Outage Report
In 2020, customers in Jefferson County, ID went without power for an average of 11.5 hours, a total of 103K customer-hours (Idaho average 5.1 hours). That ranks 14th worst of 44 Idaho counties and 693rd of 3,019 nationally.
Compared with ID, the US and 2019
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Jefferson County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 28, 2020 15:15 | May 29, 2020 02:15 | 11h | 16,466 | 8,838 |
| 2 | January 24, 2020 06:00 | January 24, 2020 11:00 | 5h | 9,590 | 16K |
| 3 | September 7, 2020 21:30 | September 11, 2020 05:15 | 3d 7h | 2,686 | 34K |
| 4 | November 8, 2020 00:45 | November 8, 2020 05:15 | 4h 30m | 2,553 | 1,885 |
| 5 | January 10, 2020 12:45 | January 10, 2020 15:30 | 2h 45m | 2,142 | 2,753 |
| 6 | April 11, 2020 04:30 | April 12, 2020 02:45 | 22h 15m | 1,770 | 2,360 |
| 7 | November 16, 2020 10:45 | November 16, 2020 20:45 | 10h | 1,658 | 647 |
| 8 | August 16, 2020 00:00 | August 16, 2020 07:30 | 7h 30m | 1,010 | 4,779 |
| 9 | December 22, 2020 16:30 | December 22, 2020 17:00 | 30m | 959 | 240 |
| 10 | July 28, 2020 14:30 | July 28, 2020 15:30 | 1h | 741 | 741 |
Outage episodes by size in 2020: 47 reached 100+ customers, 8 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 Jefferson County reported on EIA Form 861 for 2020, 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 | 2020 | 6.8 hrs | 1.88 | 2.0 hrs | 1.22 |
| Fall River Rural Elec Coop Inc | 2020 | 70 min | 0.56 | 56 min | 0.47 |
| Bonneville Power Administration | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of Idaho's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,995 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. Jefferson County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Jefferson County, ID annual power outage report, 2020, 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/2020/idaho/jefferson-county