County annual report · FIPS 16051
2019 Jefferson County, ID Power Outage Report
In 2019, customers in Jefferson County, ID went without power for an average of 4.4 hours, a total of 40K customer-hours (Idaho average 2.2 hours). That ranks 17th worst of 44 Idaho counties and 1215th of 2,945 nationally.
Compared with ID, the US and 2018
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Jefferson County, 2019
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 3, 2019 14:15 | April 3, 2019 20:15 | 6h | 5,030 | 9,569 |
| 2 | September 16, 2019 20:15 | September 18, 2019 05:45 | 1d 9h | 1,319 | 1,165 |
| 3 | May 9, 2019 16:15 | May 10, 2019 16:30 | 1d | 1,006 | 933 |
| 4 | June 20, 2019 19:45 | June 21, 2019 05:30 | 9h 45m | 635 | 337 |
| 5 | May 2, 2019 21:00 | May 3, 2019 00:45 | 3h 45m | 628 | 484 |
| 6 | April 16, 2019 14:15 | April 16, 2019 15:30 | 1h 15m | 612 | 170 |
| 7 | June 26, 2019 15:15 | June 27, 2019 08:15 | 17h | 554 | 775 |
| 8 | January 1, 2019 00:00 | January 1, 2019 04:45 | 4h 45m | 457 | 748 |
| 9 | April 25, 2019 00:00 | April 25, 2019 05:15 | 5h 15m | 377 | 428 |
| 10 | May 20, 2019 02:45 | May 20, 2019 11:45 | 9h | 362 | 777 |
Outage episodes by size in 2019: 36 reached 100+ customers, 3 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 Jefferson County reported on EIA Form 861 for 2019, 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 |
| Fall River Rural Elec Coop Inc | 2018 | 4.6 hrs | 2.31 | 4.2 hrs | 2.11 |
| 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 92% of Idaho's customers in 2019; 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, 2019, 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/2019/idaho/jefferson-county